EP2737100A2 - Verfahren zur substratbeschichtung und verwendung additivversehener, pulverförmiger beschichtungsmaterialien in derartigen verfahren - Google Patents
Verfahren zur substratbeschichtung und verwendung additivversehener, pulverförmiger beschichtungsmaterialien in derartigen verfahrenInfo
- Publication number
- EP2737100A2 EP2737100A2 EP12741313.6A EP12741313A EP2737100A2 EP 2737100 A2 EP2737100 A2 EP 2737100A2 EP 12741313 A EP12741313 A EP 12741313A EP 2737100 A2 EP2737100 A2 EP 2737100A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- additive
- coating material
- particles
- spraying
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 235000021290 n-3 DPA Nutrition 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000012169 petroleum derived wax Substances 0.000 description 1
- 235000019381 petroleum wax Nutrition 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000004157 plasmatron Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000582 polyisocyanurate Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000012791 sliding layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000006836 terphenylene group Chemical group 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 229920006342 thermoplastic vulcanizate Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005011 time of flight secondary ion mass spectroscopy Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- UWHZIFQPPBDJPM-BQYQJAHWSA-N trans-vaccenic acid Chemical compound CCCCCC\C=C\CCCCCCCCCC(O)=O UWHZIFQPPBDJPM-BQYQJAHWSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 150000003628 tricarboxylic acids Chemical class 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 229960002703 undecylenic acid Drugs 0.000 description 1
- 239000012178 vegetable wax Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
- 229940100445 wheat starch Drugs 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
Definitions
- the present invention deals with the use of powdered
- Coating materials for coating substrates are Coating materials for coating substrates. Further, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials. Furthermore, the present invention includes methods of substrate coating using such powdery coating materials.
- the present invention relates to powdered coating materials suitable for the aforementioned uses and / or processes.
- the coating material to be applied must be compatible with the basecoat and a remainder of the basecoat also remains on the Substrate.
- PVD deposition requires large amounts of energy to vaporize low volatility material.
- a variety of coating techniques have been developed to provide the desired properties for the particular application.
- Known methods use for generating the coatings, for example, kinetic energy, thermal energy or mixtures thereof, wherein the thermal energy may for example come from a conventional combustion flame or a plasma flame.
- the latter are further differentiated into thermal and non-thermal plasmas, which have in common that a gas has been partially or completely separated into free charge carriers such as ions or electrons.
- the formation of the coating takes place by applying a powder to a substrate surface, the powder particles being greatly accelerated.
- a heated process gas is accelerated by expansion in a Laval nozzle to supersonic speed and then injected the powder. Due to the high kinetic energy, the particles form a dense layer upon impact with the substrate surface.
- WO 2010/003396 A1 discloses the use of the
- Flame spraying belongs to the group of thermal coating processes.
- a powdery coating material is introduced into the flame of a fuel gas-oxygen mixture.
- acetylene oxygen flames temperatures of up to about 3200 ° C. become. Details about the method can be found in publications such as EP 830 464 B1 and US Pat. No. 5,207,382.
- thermal plasma spraying a powdery coating material is injected into a thermal plasma.
- temperatures of up to about 20,000 K are reached, causing the injected powder to melt and as a coating on a substrate
- Embodiments and process parameters are known to the person skilled in the art.
- reference is made to WO 2004/016821 which describes the use of thermal plasma spraying for applying an amorphous coating.
- EP 0 344 781 discloses the use of
- EP 0 825 272 A2 discloses a
- the non-thermal plasma spraying is largely analogous to thermal plasma spraying and flame spraying.
- a powdered coating material is injected into a non-thermal plasma and thereby onto a
- EP 2 104 750 A2 describes the use of this method and an apparatus for carrying it out.
- EP 2 104 750 A2 describes the use of this method and an apparatus for carrying it out.
- DE 103 20 379 A1 describes the production of an electrically heatable element using this method. Further disclosures regarding the method or devices for non-thermal plasma spraying can be found, for example, in EP 1 675 971 B1, DE 10 2006 061 435 A1, WO 03/064061 A1, WO 2005/031026 A1, DE 198 07 086 A1, DE 101 16 502 A1, WO 01/32949 A1, EP 0 254 424 B1, EP 1 024 222 A2, DE 195 32 412 A1, DE 199 55 880 A1 and DE 198 56 307 C1.
- a general problem of coating methods using a powdery coating material is the promotion of the powder.
- Another object of the present invention is to provide methods for
- Another object of the present invention is to provide a powdery coating material suitable for any of the foregoing
- the present invention relates to the use of a particle-containing powdery coating material in a coating process, wherein the particles of the powdery coating material are at least partially provided with at least one additive and wherein the coating method is selected from the group consisting of cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and
- the weight proportion of the additive (s) is at most 32% by weight, based on the total weight of the coating material and the additive.
- the weight proportion of the additive or additives is between 0.02% and 32% by weight, each based on the total weight of the coating material and the additive.
- the carbon content of the additive particles of the powder is
- Coating material of 0.01 wt .-% to 15 wt .-%, each based on the total weight of the coating material and the additive.
- the weight proportion of the additive or additives is at least 0.02% by weight, based on the total weight of the coating material and of the additive.
- the compound used as an additive or have the compounds used as an additive at least 6 carbon atoms.
- the particles of powdered coating material include or are metal particles and the metal is selected from the group consisting of silver, gold, platinum, palladium, vanadium, chromium, manganese, cobalt, germanium, antimony, aluminum, zinc, tin , Iron, copper, nickel, titanium, silicon, alloys and mixtures thereof.
- the coating process is selected from the group consisting of.
- Flame spraying and non-thermal plasma spraying are particularly preferred. Particularly preferred is non-thermal plasma spraying.
- the at least one additive does not comprise stearic acid and / or oleic acid and preferably no saturated and unsaturated C 18 carboxylic acids, more preferably no saturated and unsaturated C 14 to C 18 carboxylic acids, even more preferably no saturated and unsaturated C 12 to C 18 carboxylic acids, and most preferably no saturated and unsaturated C 10 to C 20 carboxylic acids.
- the additive (s) is selected from the group consisting of polymers, monomers, silanes, waxes, oxidized waxes, carboxylic acids, phosphonic acids, derivatives of the foregoing, and mixtures thereof.
- the powdered coating material has a span value in the range of 0.4 to 2.9, defined as follows:
- the additive or additives are removable from the coated particles with organic and / or aqueous solvent.
- the pulverulent coating material has a particle size distribution with a D 50 value in the range from 1.5 to 53 ⁇ m.
- the powdery coating material has a particle size distribution with a D 90 value in the range from 9 to 103 ⁇ m. In certain embodiments of the aforementioned uses, the powdery coating material has a particle size distribution with a D10 value in the range from 0.2 to 5 ⁇ m. Furthermore, the present invention relates to methods for coating a substrate selected from the group consisting of cold gas spraying,
- Plasma spraying and non-thermal plasma spraying wherein a powdery coating material is used, the particles are at least partially provided with at least one additive.
- the method is selected from the group consisting of flame spraying and non-thermal plasma spraying.
- the method is non-thermal plasma spraying.
- the powdery coating material is conveyed as an aerosol.
- the medium directed to the substrate is air or was generated from air.
- the aforementioned air can be taken from the ambient atmosphere.
- the air is cleaned prior to its use, wherein, for example, dust and / or water vapor is separated. It may also be preferred that the gaseous components of the air are largely completely separated apart from nitrogen and oxygen, wherein the
- Total amount of the impurities is preferably ⁇ 0.01% by volume, more preferably ⁇ 0.001% by volume.
- the term "powdery coating material" in the context of the present invention refers to a particle mixture which acts on the substrate as
- Coating is applied.
- the provision of the surface of the particles of the pulverulent coating material with the additive or the additives need not be complete in this case in order to achieve the use according to the invention
- the effect of the applied additives is caused, inter alia, by an effect as a spacer between the individual particles, wherein an application or an occupancy of the
- Powder-like coating materials according to the invention are carried out by means of SEM, wherein 30 randomly selected particles are considered.
- SEM Scret al.
- the inventors have found that the Fordericia powdered Be Anlagenungsmatehals is significantly increased by the at least partial coverage of the surface of the particles with at least one additive. This is of great importance in coating processes, especially those in which a thin layer is to be applied
- powdered Be Anlagenungsmatehals also allows the production of much more homogeneous coatings with little defects and a very high
- Inventive methods which can be used for the construction of coatings are, for example, cold gas spraying, thermal plasma spraying, non-thermal plasma spraying, flame spraying and
- the method is therefore preferably selected from the group consisting of flame spraying and non-thermal plasma spraying.
- the industrial use of flame spraying requires the use and to ensure continuous operation, the storage of large quantities of the gas used. Since flammable gases require flammable gases to produce the flame, their storage is accompanied by a corresponding one
- a plasma can also be generated using non-combustible gases, so that the storage of corresponding amounts of gas is associated with lower safety standards and therefore reduced costs.
- the non-thermal plasma spraying is used as a coating method.
- additive in the context of the present invention refers to substances which are uncrosslinked on the surface of the particles of the powdery coating material, i. were not networked.
- additive refers to carbonaceous compound that has not been crosslinked on the surface of the particles of powdered coating material.
- not crosslinked on the surface is understood to mean that no covalent bonds are formed between the individual additive molecules during or after the application of the additive to the particles of the powdered coating material, and thus no postcrosslinking takes place on the pigment surface the term “additive” does not mean crosslinked polymers, as disclosed, for example, in EP 21 15075 A1.
- the additives are applied to the particles of the powdered material only by means of physical bonds Coating material are bound, for example by means of Van der Waals interactions, dipole interactions or hydrogen bonds. However, it is also possible that the additives are additionally or alternatively bound by means of chemical bonds such as covalent or ionic bonds to the surface of the particles of the powdered coating material.
- the additives according to the invention can be removed again from the particles by the use of organic and / or aqueous solvents.
- Such additives have the particular advantage that they are easy and inexpensive to apply.
- certain preferred additives can be dispersed, for example, in a solvent and by mechanical forces on the
- Powder particles are applied. Additionally or alternatively, in certain embodiments, the additives may be dissolved in a suitable solvent, then mixed with the powder particles and evaporated by evaporation
- Solvent be applied to the powder particles.
- Substances which are additives for the purposes of the present invention are in particular carbon-containing compounds which are bound chemically and / or physically to the surface of the particles of the powdery coating material.
- the weight fraction of the carbon atoms of the additive-containing powdered coating material is at least 0.01% by weight, preferably at least 0.05% by weight, more preferably at least 0.1% by weight, and even more preferably at least 0.17 wt .-% is. In particular, it is in certain
- Embodiments preferred that the weight fraction of carbon atoms of the additive-containing powdery coating material at least 0.22 wt .-%, preferably at least 0.28 wt .-%, more preferably at least 0.34 wt .-% and even more preferably at least 0.4 wt .-% is.
- the abovementioned% by weight relates to the total weight of the coating material and of the additive.
- Coating material is at most 15% by weight, preferably at most 10% by weight, more preferably at most 7% by weight and even more preferably at most 5% by weight. In particular, it is with certain of the aforementioned
- Embodiments preferred that the carbon content is at most 4 wt .-%, preferably at most 3 wt .-%, more preferably at most 2 wt .-% and even more preferably at most 1 wt .-%.
- the abovementioned% by weight relates to the total weight of the coating material and of the additive.
- the weight fraction of the carbon atoms of the additive-containing powdery is particularly preferred.
- Coating material in the range between 0.01% by weight and 15% by weight, preferably in the range between 0.05% by weight and 10% by weight, more preferably in the range between 0.1 wt .-% and 7 wt .-% and even more preferably in the range between 0.17 wt .-% and 5 wt .-%.
- the aforementioned% by weight refers to the total weight of the coating material and the additive. The determination of the weight fraction of carbon atoms on
- the compounds employed as the additive contain at least 6 carbon atoms, preferably at least 7 carbon atoms, more preferably at least 8 carbon atoms and even more preferably at least 9 carbon atoms.
- the compounds employed as the additive contain at least 10 carbon atoms, preferably at least 1 1 carbon atoms, more preferably at least 12 carbon atoms and even more preferably at least 13 carbon atoms.
- the number of carbon atoms contained in the additive according to the invention can be determined, for example, by determining the particular additive. In this case, all methods known to the person skilled in the art for determining a substance can be used. For example, an additive using organic and / or aqueous solvents can be detached from the particles of the powdered coating material and subsequently identified by means of HPLC, GCMS, NMR, CHN or combinations of the abovementioned with one another or with other routinely used methods. In certain embodiments, it is further preferred that the
- Weight fraction of the additive or additives is at least 0.02 wt .-%, preferably at least 0.08 wt .-%, more preferably at least 0.17 wt .-% and even more preferably at least 0.30 wt .-%.
- the C content of the coating material and the additive is at least 0.35 wt.%, Preferably at least 0.42 wt.%, More preferably at least 0.54 wt even more preferably at least 0.62 wt .-% is.
- the aforementioned% by weight refers to the total weight of the coating material and the additive.
- the weight fraction of the additive is at most 32% by weight, preferably at most 18% by weight, more preferably at most 13% by weight and even more preferably at most 9% by weight. In particular it is with certain of the
- Coating material and the additive is at most 7 wt .-%, preferably at most 6 wt .-%, more preferably at most 4.5 wt .-% and even more preferably at most 2.3 wt .-%.
- the aforementioned% by weight refers to the total weight of the coating material and the additive.
- the weight proportion of the additive ranges between 0.02 wt% and 32 wt%, preferably between 0.08 wt% and 18 wt%, more preferably in the range between 0.17 wt .-% and 13 wt .-% and even more preferably in the range between 0.30 wt .-% and 9 wt .-% is.
- the aforementioned% by weight refers to the total weight of the coating material and the additive.
- Polymers e.g., polysaccharides, plastics
- monomers silanes, waxes, oxidized waxes
- carboxylic acids e.g., fatty acids
- phosphonic acids e.g., phosphonic acids
- derivatives of the foregoing especially carboxylic acid derivatives and phosphoric acid derivatives
- polysaccharides, plastics, silanes, waxes, oxidized waxes especially polysaccharides, plastics, silanes, waxes, oxidized waxes,
- Carboxylic acids e.g., fatty acids
- carboxylic acid derivatives e.g., carboxylic acid derivatives
- phosphonic acids e.g., carboxylic acid derivatives, phosphonic acids
- Phosphoric acid derivatives or mixtures thereof preferably polysaccharides, silanes, waxes, oxidized waxes, carboxylic acids (e.g., fatty acids)
- Carboxylic acid derivatives, phosphonic acids, phosphoric acid derivatives or mixtures thereof, more preferably polysaccharides, silanes, waxes, oxidized waxes, phosphonic acids, phosphoric acid derivatives or mixtures thereof, can be used as an additive.
- the aforementioned waxes include natural waxes as well as synthetic waxes.
- waxes are paraffin waxes, petroleum waxes, montan waxes, animal waxes (e.g., beeswax, shellack, wool wax), vegetable waxes (e.g., carnauba wax, candelilla wax, rice wax),
- Fatty acid amide waxes such as erucamide
- polyolefin waxes e.g.
- Polyethylene waxes Polypropylene waxes
- grafted polyolefin waxes grafted polyolefin waxes
- Fischer-Tropsch waxes grafted polyolefin waxes
- oxidized polyethylene waxes and modified polyethylene and polypropylene waxes eg, metallocene waxes.
- the waxes of the invention are preferably bonded via physical bonds in certain embodiments. However, it is not excluded that the waxes are added further specific embodiments have functional groups which allow alternatively or additionally an ionic and / or covalent bond.
- polymer within the meaning of the present invention also includes
- polymers used according to the invention are preferably composed of at least 25 monomer units, more preferably of at least 35 monomer units, even more preferably of at least 45 monomer units and most preferably of at least 50 monomer units.
- the polymers may in this case be bound to the particles of the pulverulent coating material without covalent or ionic bonding being formed.
- the additive according to the invention has at least one ionic or covalent bond to the particles of the
- Such a bond is preferably carried out in certain of the aforementioned embodiments via a phosphoric acid, carboxylic acid, silane or in the polymer contained
- polysaccharide within the meaning of the present invention also includes oligosaccharides.
- the polysaccharides used in the invention are preferably composed of at least 4 monomer units, more preferably at least 8 monomer units, even more preferably at least 10 monomer units, and most preferably at least 12 monomer units.
- Embodiments of particularly preferred polysaccharides are cellulose,
- Cellulose derivatives such as e.g. Methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylmethylcellulose, nitrocellulose
- thermoplastic thermosetting or elastomeric plastics.
- Thermoplastic plastics are particularly preferred, all thermoplastics known to those skilled in the art being suitable.
- thermoplastics can be found e.g. in the plastic paperback, ed. Saechtling, 25th edition, Hanser-Verlag, Kunststoff, 1992, especially chapter 4 and references cited therein, and in Kunststoff-Handbuch, ed. G. Becker and D.
- thermoplastics are to be exemplified for clarity: polyoxyalkylenes, polycarbonates (PC), polyesters such as polybutylene terephthalate (PBT) or polyethylene terephthalate (PET), polyolefins such as polyethylene or Polypropylene (PP), poly (meth) acrylates, polyamides, vinylaromatic (co) polymers such as polystyrene, impact-modified polystyrene such as HI-PS, or ASA, ABS or AES polymers, polyarylene ethers such
- Polyphenylene ethers PPE
- polysulfones polyurethanes
- polylactides polylactides
- halogen-containing polymers halogen-containing polymers
- imide group-containing polymers cellulose esters
- silicone polymers thermoplastic elastomers. It is also possible to use mixtures of different thermoplastics in the form of single- or multi-phase polymer blends.
- Polyoxyalkylene homopolymers or copolymers, in particular (co) polyoxymethylenes (POM), and processes for their preparation are known per se to the person skilled in the art and are described in the literature.
- the polymer backbone of these polymers has at least 50 mole% of repeating units -CH 2 O-.
- Homopolymers are generally prepared by polymerization of formaldehyde or trioxane, preferably catalytically. examples are
- Polyoxymethylene copolymers and Polyoxymethylenterpolymerisate are known per se and are obtainable, for example, according to DE 1 300 266 B1 by interfacial polycondensation or according to DE 14 95 730 A1 by reacting biphenyl carbonate with bisphenols.
- Suitable polyesters are also known per se and in the literature
- polyesters can be converted by reaction of aromatic compounds
- Dicarboxylic acids their esters or other ester-forming derivatives thereof are prepared with aliphatic dihydroxy compounds in a conventional manner.
- dicarboxylic acids their esters or other ester-forming derivatives thereof are prepared with aliphatic dihydroxy compounds in a conventional manner.
- dicarboxylic acids their esters or other ester-forming derivatives thereof are prepared with aliphatic dihydroxy compounds in a conventional manner.
- aromatic dicarboxylic acids Up to 10 mol% of the aromatic dicarboxylic acids can be replaced by aliphatic or cycloaliphatic dicarboxylic acids such as
- Dihydroxy compounds are diols having 2 to 6 carbon atoms, in particular 1,2-ethanediol, 1,4-butanediol, 1,6-hexanediol, 1,4-hexanediol, 1,4-cyclohexanediol and neopentyl glycol or mixtures thereof.
- polystyrene resin examples include polyethylene and polypropylene and also copolymers based on ethylene or propylene, if appropriate also with higher ⁇ -olefins.
- polyolefin in the sense of the present invention also encompasses ethylene-propylene elastomers and ethylene-propylene terpolymers.
- poly (meth) acrylates examples include polymethyl methacrylate (PMMA) and copolymers based on methyl methacrylate with up to 40% by weight of further copolymerizable monomers, e.g. n-butyl acrylate, t-butyl acrylate or 2-ethylhexyl acrylate.
- PMMA polymethyl methacrylate
- copolymers based on methyl methacrylate with up to 40% by weight of further copolymerizable monomers, e.g. n-butyl acrylate, t-butyl acrylate or 2-ethylhexyl acrylate.
- polystyrene resin examples include polyetheramides such as
- Polyetherblockamide and are used, for example, in the disclosures of US 2,071,250, US 2,071,251, US 2,130,523, US 2,130,948, US 2,241,322, US 2,312,966, US 2,512,606 and US 3,393,210.
- the aforementioned polyamides include, for example, polycaprolactams, polycapryllactams, polylaurolactams, and polyamides obtained by reacting dicarboxylic acids with diamines.
- suitable dicarboxylic acids are alkanedicarboxylic acids having 6 to 12, in particular 6 to 10 carbon atoms and aromatic dicarboxylic acids used.
- suitable diamines are examples of suitable diamines.
- SAN styrene-acrylonitrile copolymers
- HIPS impact-modified polystyrene
- ABS polymers can be found, for example, in DE 197 28 629 A1 and of ASA polymers, for example in EP 99 532 A2.
- Information on the preparation of AES polymers can also be found, for example, in US Pat. No. 3,055,859 or in US Pat. No. 4,224,419.
- polyarylene ethers examples are polyarylene ethers themselves,
- Polyarylene ether sulfides Polyarylenethersulfone and Polyarylenetherketone.
- Their arylene groups may be identical or different and independently of one another, for example, an aromatic radical having 6 to 18 carbon atoms.
- suitable arylene radicals are phenylene, bisphenylene, terphenylene, 1, 5-naphthylene, 1, 6-naphthylene, 1, 5-anthrylene, 9,10-anthrylene or 2,6-anthrylene.
- Exemplary preparation details of polyarylene ether sulfones can be found in EP 1 13 1 12 A1 and EP 135 130 A2.
- Other examples of plastics that may be used as additives in certain embodiments are polyurethanes, polyisocyanurates and polyureas.
- halogen-containing polymers are the polymers of vinyl chloride, such as polyvinyl chloride (PVC) (e.g., rigid PVC and plasticized PVC), and copolymers of vinyl chloride (e.g., PVC-U molding compounds).
- PVC polyvinyl chloride
- copolymers of vinyl chloride e.g., PVC-U molding compounds.
- fluorine-containing polymers such as
- PTFE Polytetrafluoroethylene
- FEP tetrafluoroethylene-perfluoropropylene copolymers
- ETFE ethylene-tetrafluoroethylene copolymers
- PVDF polyvinylidene fluoride
- PVF Polyvinyl fluoride
- PCTFE polychlorotrifluoroethylene
- ECTFE ethylene-chlorotrifluoroethylene copolymers
- imide group-containing polymers examples include polyimides, polyetherimides, and polyamide-imides. Such polymers are described, for example, in Römpp Chemie Lexikon, CD-ROM Version 1 .0, Thieme Verlag Stuttgart 1995.
- thermoplastic elastomers TPE
- thermoplastic polyurethane elastomers TPE-U or TPU
- styrene-oligoblock copolymers TPE-S
- SBS styrene-butadiene Styrene-oxy-bicyclic copolymer
- SEES styrene-ethylene-butylene-styrene block copolymer obtainable by hydrogenating SBS
- thermoplastic polyolefin elastomers TPE-O
- thermoplastic polyester elastomers TPE-E
- thermoplastic polyamide elastomers TPE-A
- thermoplastic vulcanizates TPE-V
- polyacrylates are poly (meth) acrylates, which are preferably present as homopolymers or as block polymers.
- Polymers are sold, for example, by Evonik under the trade name Degalan. In certain embodiments, it is preferred that the additives
- the polymers used as additives have a molecular weight of at most 200,000,
- Additive compounds used have a molecular weight of at most 1 10 000, preferably of at most 90 000, more preferably of at most 70 000 and even more preferably of at most 50 000.
- carboxylic acids in particular embodiments also include, in particular, dicarboxylic acids, tricarboxylic acids and tetracarboxylic acids.
- dicarboxylic acids are succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid.
- Carboxylic acid derivatives in particular aligned to carboxylic acid ester.
- Examples of the aforementioned fatty acids are capric acid, undecanoic acid,
- Lauric acid tridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, margaric acid, nonadecanoic acid, arachic acid, behenic acid, lignoceric acid, cerotic acid, melissic acid, undecylenic acid, palmitoleic acid, elaidic acid, vaccenic acid, icosenoic acid, cetoleic acid, erucic acid, nervonic acid,
- the additives include no stearic acid and oleic acid and preferably no saturated and unsaturated C 18 carboxylic acids, more preferably no saturated and unsaturated C 14 to C 18 carboxylic acids, even more preferably no saturated and unsaturated C 12 to C 18 carboxylic acids and most preferably no saturated and unsaturated C 10 to C 20 carboxylic acids.
- C followed by a number in the context of the present invention refers to the carbon atoms contained in a molecule or molecular component, the number representing the number of carbon atoms.
- the aforementioned phosphonic acids are represented by formula (I):
- X may be the same or different and are hydrogen, hydroxy, halogen or-NR '2, R' can be the same or different and are hydrogen, a substituted or unsubstituted C1 - C9 is alkyl group or a substituted or unsubstituted aryl group, Y is the same or different and R may be the same or different and is selected from the group consisting of C 1 -C 30 alkyl groups, C 2 -C 30 alkenyl groups, C 2 -C 30 alkynyl groups, C 5, and -O-, -S-, -NH- or -NR- -C30 aryl groups, C6-C30 arylalkyl groups, C4-C30 heteroaryl groups, C5-C30 heteroarylalkyl groups, C3-C30 cycloalkyl groups, C4-C30 cycloalkylalkyl groups, C2-C30
- Heterocycloalkyl groups C3-C30 heterocycloalkylalkyl groups, C1-C30
- Arylalkylether phenomenon where the abovementioned groups may be substituted or unsubstituted and optionally straight-chain or branched.
- substituted in the context of the present invention describes that at least one hydrogen atom of the group in question by a halogen, hydroxy, cyano, C1-C8 alkyl, C2-C8 alkenyl, C2-C8 alkynyl, C1-C5 alkanoyl , C3-C8 cycloalkyl, heterocyclic, aryl, heteroaryl, C1-C7 alkylcarbonyl, C1-C7 alkoxy, C2-C7 alkenyloxy, C2-C7 alkynyloxy, aryloxy, acyl, C1-C7 acryloxy, C1- C7 methacryloxy, C1-C7 epoxy, C1-C7 vinyl, C1-C5 alkoxycarbonyl, aroyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, aminarbonyloxy, C1-C7 alkylaminocarbonyloxy, C
- Alkanoylamine C1-C7 alkoxycarbonylamine, C1-C7 alkylsulfonylamine,
- cycloalkyl group and “heterocycloalkyl group” within the meaning of the present invention include saturated, partially saturated and unsaturated Systems other than aromatic systems classified as “aryl groups” or
- alkyl in the context of the present invention is, unless stated otherwise, preferably straight or branched C1 to C27, more preferably straight or branched C1 to C25 and even more preferably straight or branched C1 to C20 carbon chains.
- alkenyl and alkynyl in the context of the present invention are, unless stated otherwise, preferably straight or branched C2 to C27, more preferably straight or branched C2 to C25 and even more preferably straight or branched C2 to C20 carbon chains.
- aryl within the meaning of the present
- the invention relates to aromatic carbon rings, preferably to aromatic carbon rings having at most 7 carbon atoms, more preferably to the phenyl ring, wherein the aforementioned aromatic carbon rings may be part of a fused ring system.
- aryl groups are phenyl, hydroxyphenyl, biphenyl and naphthyl.
- heteroaryl in the context of the present invention stands for aromatic rings in which formally a carbon atom of an analogous aryl ring has been replaced by a heteroatom, preferably against an atom selected from the group consisting of O, S and N.
- silanes are characterized by a structure of the formula (II):
- X may be the same or different and is hydrogen, hydroxy, halogen or NR ' 2 , R' may be the same or different and
- R may be the same or different and is selected from the group consisting of C1-C30
- Alkyl groups C2-C30 alkenyl groups, C2-C30 alkynyl groups, C5-C30 Aryl groups, C6-C30 arylalkyl groups, C4-C30 heteroaryl groups, C5-C30 heteroarylalkyl groups, C3-C30 cycloalkyl groups, C4-C30
- Cycloalkylalkyl groups C2-C30 heterocycloalkyl groups, C3-C30
- Heterocycloalkylalkyl groups C1-C30 ester groups, C1-C30 alkyl ether groups, C1-C30 cycloalkyl ether groups, C1-C30 cycloalkenyl ether groups, C6-C30 aryl ether groups, C7-C30 arylalkyl ether groups, the foregoing
- Groups may be substituted or unsubstituted and optionally straight-chain or branched.
- the additive may, for example, be bound chemically or physically to the surface of the particles of the powdered coating material. In this case, it is not necessary for a complete surface coverage of the particles to take place, although this is preferred in certain embodiments of the present invention.
- the additives are as lightly bound to the surface of the particles of the powdered Be Anlagenungsmatenals.
- the additives are as lightly bound to the surface of the particles of the powdered Be Anlagenungsmatenals.
- Silane groups carbonyl groups, hydroxyl groups, amine groups,
- the additives can not be easily removed from the surface due to friction, for example.
- the additives used according to the invention carry at least one functional group, preferably at least two functional groups, more preferably at least three functional groups.
- Coating materials also allowed the use of coating materials with an unexpectedly high melting point. Without it being to be understood as limiting the invention, it is the view of the inventors that the more uniform delivery of the particles with reduced tendency to
- Agglomeration allows the particles to impinge on the substrate surface in isolated cases and to fully utilize the kinetic energy available for the deformation of the particle.
- some of the kinetic energy is apparently consumed by the breaking up of the agglomerate and later impacting particles are cushioned by coating material already present at this point but not yet solidified. Unless the powdered
- powdered coating materials coated with at least one additive according to the invention can also be used to produce homogeneous layers if the melting point of the coating material measured in [K] is up to 50%, preferably up to 60%, more preferably up to 65% and still more preferably up to 70% of the temperature measured in [K] of the medium used in the coating process, for example the gas flow, the combustion flame and / or the plasma flame, directed to the substrate.
- At least one additive coated powdered Be Anlagenungsmatehalien are also used for the preparation of homogeneous layers, when measured in [K] melting point of the coating material up to 75%, preferably up to 80%, more preferably up to 85% and even more preferably up to 90% of in [K] measured temperature of the medium used in the coating process directed to the substrate, for example, the gas stream, the combustion flame and / or the plasma flame is.
- the abovementioned percentages relate to the ratio of the melting temperature of the coating material to the temperature of the gas stream during cold gas spraying, the combustion flame during flame spraying and
- the term "homogeneous layer” in the sense of the present invention describes that the relevant coating is less than 10%, preferably less than 5%, more preferably less than 3%, even more preferably less than 1% and most preferably less than 0, Have 1% cavities. In particular, it is preferred that no cavities are to be recognized.
- the aforementioned term "cavity" in the sense of the present invention describes the proportion of the gaps enclosed in the coating on the two-dimensional surface of a transverse section of the coated substrate, based on the coating contained in the two-dimensional surface. A determination of this proportion takes place by means of SEM at 30 randomly selected places of the
- coated for example, a length of 100 ⁇ the substrate coating is considered.
- Coating material and the additive not only improved conveyability of powder coating materials is given, but also not yet conveyable powdered coating materials can be conveyed in a simple manner and used for the production of high-quality coatings.
- the determination of the size distribution of the particles is preferably carried out by means of laser granulometry.
- the particles can be measured in the form of a powder.
- the scattering of the irradiated laser light is in
- the particles are treated mathematically as spheres.
- the determined diameters always relate to the equivalent spherical diameter determined over all spatial directions, irrespective of the actual shape of the particles. It determines the size distribution, which is calculated in the form of a volume average, based on the equivalent spherical diameter. This volume-averaged size distribution can be considered
- Sum frequency distribution is simplified characterized by various characteristics, for example, the Di 0 , D 5 o or D 90 value.
- the measurements can be carried out, for example, using the particle size analyzer HELOS from Sympatec GmbH, Clausthal-Zellerfeld, Germany.
- the dispersion of a dry powder can take place here with a dispersion unit of the Rodos T4.1 type at a primary pressure of, for example, 4 bar.
- size distribution curve of the particles can be measured, for example, with a device from the company Quantachrome (device: Cilas 1064) according to the manufacturer's instructions. For this purpose, 1, 5 g of powdered
- the powdered coating material has a particle size distribution having a D 50 value of at most 53 ⁇ m, preferably at most 51 ⁇ m, more preferably at most 50 ⁇ m and even more preferably at most 49 ⁇ m.
- the powdery coating material is a
- Particle size at which 50% of the above-mentioned particle size distribution by means of laser granulometry is below the stated value The measurements may, for example, according to the aforementioned
- the powdery coating material has a particle size distribution with a D 50 value of at least 1.5 ⁇ , preferably at least 2 ⁇ , more preferably at least 4 ⁇ and even more preferably at least 6 ⁇ .
- the powdery coating material is a
- the powder has a particle size distribution with a D 50 value in the range from 1.5 to 53 ⁇ m, preferably in the range of 2 to 51 ⁇ , more preferably in the range of 4 to 50 ⁇ and even more preferably in the range of 6 to 49 ⁇ .
- the powder has a particle size distribution with a D 50 value in the range of 7 to 48 ⁇ , preferably in the range of 9 to 47 ⁇ , more preferably in the range of 1 1 to 46 ⁇ and still more preferably in the range of 13 to 45 ⁇ .
- the powder has a particle size distribution with a D 50 value in the range from 1.5 to 45 ⁇ m, preferably in the range from 2 to 43 ⁇ m, more preferably in the range from 2.5 to 41 ⁇ m and even more preferably in the range of 3 to 40 ⁇ .
- the powder has a particle size distribution with a D 50 value in the range from 3.5 to 38 ⁇ m, preferably in the range from 4 to 36 ⁇ m, more preferably in the range from 4.5 to 34 ⁇ m ⁇ and even more preferably in the range of 5 to 32 ⁇ has.
- the powder has a particle size distribution with a D 50 value in the range from 9 to 53 ⁇ m, preferably in the range from 12 to 51 ⁇ m, more preferably in the range from 15 to 50 ⁇ m, even more preferably in the range of 17 to 49 ⁇ .
- the powder has a particle size distribution with a D 50 value in the range of 19 to 48 ⁇ , preferably in the range of 21 to 47 ⁇ , more preferably in the range of 23 to 46 ⁇ and even more preferably in the range of 25 to 45 ⁇ .
- the powdery coating material has a particle size distribution with a Dgo value of at most 103 ⁇ , preferably at most 99 ⁇ , more preferably at most 95 ⁇ , more preferably at most 91 ⁇ and most preferably at most 87 ⁇ .
- the powdery coating material has a particle size distribution with a Dgo value of at most 103 ⁇ , preferably at most 99 ⁇ , more preferably at most 95 ⁇ , more preferably at most 91 ⁇ and most preferably at most 87 ⁇ .
- the powdery coating material has a particle size distribution with a Dgo value of at most 103 ⁇ , preferably at most 99 ⁇ , more preferably at most 95 ⁇ , more preferably at most 91 ⁇ and most preferably at most 87 ⁇ .
- Coating material has a D 90 value of at most 83 ⁇ , preferably at most 79 ⁇ , more preferably at most 75 ⁇ and even more preferably at most 71 ⁇ .
- Particle size at which 90% of the above-mentioned particle size distribution by means of laser granulometry is below the stated value The measurements may, for example, according to the aforementioned
- powdery coating material having a Dgo- value of at least 9 ⁇ , preferably at least 1 1 ⁇ , more preferably at least 13 ⁇ and even more preferably at least 15 ⁇ .
- the powdery coating material is a
- the powdery coating materials have a particle size distribution with a D 90 value in the range of 42 to 103 ⁇ , preferably in the range of 45 to 99 ⁇ , more preferably in the range of 48 to 95 ⁇ and even more preferably in the range of 50 to 91 ⁇ on.
- a D 90 value in the range of 42 to 103 ⁇ , preferably in the range of 45 to 99 ⁇ , more preferably in the range of 48 to 95 ⁇ and even more preferably in the range of 50 to 91 ⁇ on.
- the powdery coating material has a D 90 value in the range of 52 to 87 ⁇ , preferably in the range of 54 to 81 ⁇ , more preferably in the range of 56 to 75 ⁇ and even more preferably in the range of 57 to 71 ⁇ ,
- the powdery coating material has a particle size distribution with a Di 0 value of at most 5 ⁇ m, preferably at most 4 ⁇ m, more preferably at most 3 ⁇ m and even more preferably at most 2.5 ⁇ m.
- Di 0 value of at most 5 ⁇ m, preferably at most 4 ⁇ m, more preferably at most 3 ⁇ m and even more preferably at most 2.5 ⁇ m.
- powdery coating material having a particle size distribution with a Di 0 - value of at most 2.2 ⁇ , preferably at most 2 ⁇ , more preferably at most 1, 8 ⁇ and even more preferably at most 1, 7 ⁇ .
- Particle size at which 10% of the above-mentioned particle size distribution by means of laser granulometry is below the stated value The measurements may, for example, according to the aforementioned
- the additive-containing, powdery coating material it is therefore preferable for the additive-containing, powdery coating material to have a
- powdery coating material having a particle size distribution with a Di 0 - value of at least 0.7 ⁇ , preferably 0.8 ⁇ , more preferably 0.9 ⁇ and even more preferably at least 1, 0 ⁇ .
- the additive-occupied is the additive-occupied
- powdery coating material characterized in that it has a particle size distribution with a Di 0 value from a range of 0.2 to 5 ⁇ , preferably from a range of 0.4 to 4 ⁇ , more preferably from a range of 0.5 to 3 ⁇ and even more preferably from a range of 0.6 to 2.5 ⁇ .
- Di 0 value from a range of 0.2 to 5 ⁇ , preferably from a range of 0.4 to 4 ⁇ , more preferably from a range of 0.5 to 3 ⁇ and even more preferably from a range of 0.6 to 2.5 ⁇ .
- Embodiments preferred that the additive-containing, powdery
- Coating material a particle size distribution with a Di 0 value from a range of 0.7 to 2.2 ⁇ , preferably from a range of 0.8 to 2.1 ⁇ , more preferably from a range of 0.9 to 2.0 ⁇ and even more preferably from a range of 1, 0 to 1, 9 ⁇
- the powdery coating material ⁇ a particle size distribution having a Di 0 value of 3.7 to 26 ⁇ , a D 50 value of 6 to 49 ⁇ and a Dgo value of 12 to 86 ⁇ , for certain of the above
- Coating material a particle size distribution with a Di 0 value of 5.8 to 26 ⁇ , a D 50 value of 1 1 to 46 ⁇ and a D 90 value of 16 to 83 ⁇ having.
- the powdery coating material it is even more preferable for the powdery coating material to have a
- the powdery coating material has a particle size distribution with a Di 0 value of 0.8 to 28 ⁇ m, a D 50 value of 1.5 to 45 ⁇ m and a Dco value of 2.5 to 81 ⁇ has.
- Coating material has a particle size distribution with a Di 0 value of 2.2 to 22 ⁇ , a D 50 value of 4 to 36 ⁇ and a D 90 value of 4 to 62 ⁇ . In certain of the aforementioned embodiments, it is even more preferable that the powdery coating material has a
- Grain size distribution with a Di 0 value of 2.8 to 17 ⁇ , a D 50 value of 6 to 28 ⁇ and a D 90 value of 9 to 49 ⁇ has.
- the pulverulent coating material it is preferred, for example, for the pulverulent coating material to have a particle size distribution with a Di 0 value of 4.8 to 29 ⁇ m, a D 50 value of 9 to 53 ⁇ m and a Dco value of 13 to 97 ⁇ m , for certain of the above
- Coating material has a particle size distribution with a Di 0 value of 12 to 26 ⁇ , a D 50 value of 23 to 46 ⁇ and a D 90 value of 35 to 87 ⁇ . In certain of the aforementioned embodiments, it is even more preferable that the powdery coating material has a
- the inventors have found that by using a powdered coating material with lower chip in certain embodiments, for example, an even more uniform Forderles the powdery
- the span of the powdered coating material is at most 2.9, preferably at most 2.6, more preferably at most 2.4 and even more preferably at most 2.1.
- the span of the powdered coating material is at most 1, 9, preferably at most 1, 8, more preferably at most 1, 7 and even more preferably at most 1, 6.
- the span of the powdered coating material is at least 0.4, preferably at least 0.5, more preferably at least 0.6 and even more preferably at least 0.7.
- the span value of the powdered coating material is at least 0.8, preferably at least 0.9, more preferably at least 1.0, and even more preferably at least 1.1.
- the powdered coating material has a span value in the range of 0.4 to 2.9, preferably in the range of 0.5 to 2.6, more preferably in the range of 0.6 to 2, 4 and more preferably in the range of 0.7 to 2.1.
- the powdered coating material has a span value in the range of 0.4 to 2.9, preferably in the range of 0.5 to 2.6, more preferably in the range of 0.6 to 2, 4 and more preferably in the range of 0.7 to 2.1.
- the powdered coating material has a span value in the range of 0.4 to 2.9, preferably in the range of 0.5 to 2.6, more preferably in the range of 0.6 to 2, 4 and more preferably in the range of 0.7 to 2.1.
- the powdered coating material has a span value in the range of 0.4 to 2.9, preferably in the range of 0.5 to 2.6, more preferably in the range of 0.6 to 2, 4 and more preferably in the range of 0.7 to 2.1.
- the powdered coating material has a span
- powdery coating material has a span value in the range of 0.8 to 1.9, preferably in the range of 0.9 to 1.8, more preferably in the range of 1.0 to 1.7, and even more preferably in the range of 1, 1 to 1, 6.
- the pulverulent coating material has a particle size distribution with a span in the range from 0.5 to 2.6 and a D 50 value in the range from 1.5 to 53 ⁇ m, preferably in the range from 2 to 51 ⁇ m. more preferably in the range of 4 to 50 ⁇ , more preferably in the range of 6 to 49 ⁇ and most preferably in the range of 7 to 48 ⁇ on.
- the powdery coating material has a particle size distribution with a span in the range from 0.5 to 2.6 and a D 50 value in the range from 1.5 to 53 ⁇ m, preferably in the range from 2 to 51 ⁇ m. more preferably in the range of 4 to 50 ⁇ , more preferably in the range of 6 to 49 ⁇ and most preferably in the range of 7 to 48 ⁇ on.
- the powdery coating material has a particle size distribution with a span in the range from 0.7 to 2.1 and a D 50 value in the range from 1.5 to 53 ⁇ m, preferably in the range from 2 to 51 ⁇ m. more preferably in the range of 4 to 50 ⁇ , more preferably in the range of 6 to 49 ⁇ and most preferably in the range of 7 to 48 ⁇ on.
- Coating material may have an influence on the promotion of such powders in the form of an aerosol. Without it being to be understood as limiting the invention, it is the view of the inventors that the
- Coating materials with identical grain size distribution lead it may be difficult to transfer production processes that have been optimized for a specific D 50 to different density powdered coating materials.
- Span 0 K is the corrected upper span value
- Span 0 is the upper span value
- p A is the density of aluminum (2.7 g / cm 3 )
- px is the density of the
- Coating materials having a density less than the density of aluminum are therefore used with an uncorrected upper span powdery coating material.
- Coating processes which can be used according to the invention are known to the person skilled in the art under the name of cold gas spraying, thermal plasma spraying, non-thermal plasma spraying, flame spraying and high-speed flame spraying.
- the cold gas spraying is characterized in that the powder to be applied is not melted in the gas jet, but that the particles are greatly accelerated and form a coating on the surface of the substrate due to their kinetic energy.
- a carrier gas such as nitrogen, helium, argon, air, krypton, neon, xenon, carbon dioxide, oxygen or mixtures thereof. In certain variants, it is particularly preferred that are used as gas, air, helium or mixtures thereof.
- nozzle gas velocities of up to 3000 m / s can be achieved.
- the particles can be accelerated up to 2000 m / s.
- a powder is converted into the liquid or plastic state by means of a flame and then applied as a coating to a substrate.
- a substrate e.g. a mixture of oxygen and a combustible gas such as acetylene or hydrogen burned.
- Variants of flame spraying use part of the oxygen to convey the powdery coating material into the combustion flame.
- the particles reach in conventional variants of this method
- high-velocity flame spraying converts a powder into a liquid or plastic state by means of a flame.
- the particles are accelerated significantly faster compared to the aforementioned method.
- a velocity of the gas stream of 1220 to 1525 m / s is called with a velocity of the particles of about 550 to 795 m / s.
- gas velocities of over 2000 m / s are achieved.
- the speed of the flame is between 1000 and 2500 m / s.
- the flame temperature is between 2200 ° C and 3000 ° C.
- the temperature of the flame is thus comparable to the temperature during flame spraying. This is achieved by combustion of the gases under a pressure of about 515 to 621 kPa followed by the expansion of the combustion gases in a nozzle. In general it is believed that coatings produced thereby have a higher density compared to, for example, coatings obtained by the flame spraying process.
- the detonation / explosive flame spraying can be classified as subspecies of the
- the powdery coating material is greatly accelerated by repeated detonations of a gas mixture such as acetylene / oxygen, for example, particle velocities of about 730 m / s are achieved.
- Detonation frequency of the method is for example between about 4 to 10 Hz. In variants such as the so-called high-frequency gas detonation spraying but also detonation frequencies by about
- the resulting layers should usually have a particularly high hardness, strength, density and good bonding to the substrate surface.
- a primary gas such as argon is passed through a DC arc furnace at a rate of 40 l / min and a secondary gas such as hydrogen at a rate of 2.5 l / min, producing a thermal plasma. Subsequently, the supply of, for example, 40 g / min of the pulverulent takes place
- the delivery rate of the powdery coating material is between 5 g / min and 60 g / min, more preferably between 10 g / min and 40 g / min.
- argon, helium or mixtures thereof as ionizable gas.
- the total gas flow is also preferably 30 to 150 SLPM (standard liters per minute) for certain variants.
- the electrical power used for the ionization of the gas flow without the heat energy dissipated as a result of cooling can be selected, for example, between 5 and 100 kW, preferably between 40 and 80 kW. In this case, plasma temperatures between 4000 K and a few 10000 K can be achieved.
- a non-thermal plasma is used to activate the powdered coating material.
- the plasma used here is, for example, with a barrier discharge or
- the temperature of the plasma here is preferably less than 3000 K, preferably less than 2500 K and even more preferably less than 2000 K. This minimizes the technical complexity and keeps the energy input in the applied
- Coating material as low as possible, which in turn is a gentle
- the magnitude of the temperature of the plasma flame is thus preferably comparable to that in flame spraying or high-speed flame spraying.
- Targeted choice of parameters also allows the generation of nonthermal plasmas with core temperatures below 1 173 K or even below 773 K in the core region.
- Such non-thermal plasmas are particularly suitable for coatings of very temperature-sensitive substrates. For producing coatings with sharp boundaries without the
- the outlet opening of the plasma flame such that the web widths of the coatings produced are between 0.2 mm and 10 mm. This allows a very accurate, flexible, energy-efficient coating with the best possible utilization of the coating material used. As a distance of the spray lance to the substrate, for example, a distance of 1 mm is selected. This allows for the greatest possible flexibility of the coatings while ensuring high-quality coatings.
- the distance between the spray lance and the substrate is between 1 mm and 35 mm.
- ionizable gas various gases known to those skilled in the art and mixtures thereof can be used in the non-thermal plasma process.
- the speed of the plasma flow is below 200 m / s.
- a flow rate for example, a value between 0.01 m / s and 100 m / s, preferably between 0.2 m / s and 10 m / s are selected.
- the volume flow of the carrier gas is between 10 and 25 l / min, more preferably between 15 and 19 l / min.
- the particles of the powdery coating material are preferably metallic particles or metal-containing particles.
- the metal content of the metallic Particles or metal-containing particles at least 95 wt .-%, preferably at least 99 wt .-%, even more preferably at least 99.9 wt .-% is.
- the metal or metals are selected from the group consisting of silver, gold, platinum, palladium, vanadium, chromium, manganese, cobalt, germanium, antimony, aluminum, zinc, tin, iron, copper, nickel, titanium, silicon , Alloys and mixtures thereof.
- the metal or metals be selected from the group consisting of silver, gold, aluminum, zinc, tin, iron, copper, nickel, titanium, silicon, alloys, and mixtures thereof, preferably from the group consisting of silver, gold, aluminum, zinc, tin, iron, nickel, titanium, silicon, alloys and mixtures thereof.
- the metal or metals of the particles of the invention are provided. According to further preferred embodiments of the method according to the invention, the metal or metals of the particles of the invention
- powdery coating material selected from the group consisting of silver, aluminum, zinc, tin, copper, alloys and mixtures thereof. As particularly suitable in specific embodiments
- Particles have been found to be particularly metallic particles or metal-containing particles, in which the metal or metals are selected from the group consisting of silver, aluminum and tin.
- Inorganic particulate coating material preferably selected from the group consisting of carbonates, oxides, hydroxides, carbides, halides, nitrides, and mixtures thereof. Particularly suitable are mineral and / or metal oxide particles. In other embodiments, the inorganic particles are alternatively or additionally selected from the group consisting of carbon particles or
- Graphite particles selected. Another possibility is the use of mixtures of the metallic particles and the aforementioned inorganic particles, such as
- mineral and / or metal oxide particles for example, mineral and / or metal oxide particles, and / or the particles selected from the group consisting of carbonates, oxides, hydroxides, carbides, halides, nitrides, and mixtures thereof.
- the powdery coating material may comprise or consist of glass particles. In certain embodiments, it is particularly preferred that the powdered coating material be coated
- Glass particles comprises or consist of them.
- the powdered coating material includes certain features
- the powdered coating material comprises or consists of plastic particles.
- the abovementioned plastic particles are formed from, for example, pure or mixed homo-, co-, block- or prepolymers or mixtures thereof.
- the plastic particles may be pure crystals or be mixed crystals or have amorphous phases.
- the plastic particles can be obtained, for example, by mechanical comminution of plastics.
- the powdery coating material comprises or consists of mixtures of particles of different materials. In certain preferred Embodiments consists of the powdery coating material
- the particles can be produced by different methods.
- the metal particles can be obtained by atomization or atomization of molten metal.
- Glass particles can be produced by mechanical comminution of glass or else from the melt. In the latter case, the molten glass can also be atomized or atomized. Alternatively, molten glass can also be used on rotating elements,
- a drum be divided.
- Mineral particles, metal oxide particles and inorganic particles selected from the group consisting of oxides, hydroxides, carbonates, carbides, nitrides, halides and mixtures thereof can be obtained by comminuting the naturally occurring minerals, rocks, etc. and subsequently size-classified.
- Size classification can be carried out, for example, by means of cyclones, air separators, screening, etc.
- the particles of powdered coating material have been coated before being coated with the additive.
- the aforesaid coating may comprise or be made of a metal.
- a coating of a particle may be closed or particulate, with closed structure coatings being preferred.
- the layer thickness of such a metallic coating is preferably less than 1 ⁇ , more preferably less than 0.8 ⁇ and even more preferably less than 0.5 ⁇ . In certain embodiments, such
- Coatings a thickness of at least 0.05 ⁇ , more preferably of at least 0.1 ⁇ on. Especially in certain embodiments
- Preferred metals for use in any of the foregoing coatings are selected from the group consisting of copper, titanium, gold, silver, tin, zinc, iron, silicon, nickel and aluminum, preferably selected from the group consisting of gold, silver , Tin and zinc, more preferably from the group consisting of silver, tin and zinc.
- the term main constituent in the sense of the abovementioned coating denotes that the metal in question or a mixture of the abovementioned metals represents at least 90% by weight, preferably 95% by weight, more preferably 99% by weight, of the metal content of the coating. It must be understood that in the case of partial oxidation, the oxygen content of the corresponding
- Oxide layer is not included.
- the production of such metallic coatings can be carried out, for example, by means of gas-phase synthesis or wet-chemical processes.
- the particles of the powdery coating material according to the invention are additionally or alternatively coated with a metal oxide layer.
- this metal oxide layer consists essentially of silicon oxide, aluminum oxide, boron oxide, zirconium oxide, cerium oxide, iron oxide, titanium oxide, chromium oxide, tin oxide, molybdenum oxide, their hydrated oxides, their hydroxides and mixtures thereof.
- this metal oxide layer consists essentially of silicon oxide, aluminum oxide, boron oxide, zirconium oxide, cerium oxide, iron oxide, titanium oxide, chromium oxide, tin oxide, molybdenum oxide, their hydrated oxides, their hydroxides and mixtures thereof.
- the metal oxide layer consists essentially of
- Silicon oxide The aforementioned term "consists essentially of" in the sense of the present invention means that at least 90%, preferably
- Metal oxide layer consists of the aforementioned metal oxides, in each case based on the number of particles of the metal oxide layer, wherein optionally contained water is not included. The determination of
- composition of the metal oxide layer can be carried out by methods known to the person skilled in the art, for example sputtering in combination with XPS or TOF-SIMS. In particular, it is with certain of the aforementioned
- the metal oxide layer is not an oxidation product of an underlying metal core.
- the application of such a metal oxide layer can be carried out, for example, by the sol-gel method.
- the substrate is selected from the group consisting of plastic substrates, inorganic substrates, and
- the plastic substrates may be, for example, plastic films or molded plastic.
- the shaped bodies can have geometrically simple or complex shapes.
- the plastic molding may be, for example, a component of the automotive industry or the construction industry.
- the cellulose-containing substrates may be cardboard, paper, wood, wood-containing substrates, etc.
- the inorganic substrates may be, for example, metallic substrates, such as metal sheets or metallic moldings or ceramic or mineral substrates or moldings.
- the inorganic substrates may also be solar cells or silicon wafers onto which, for example, electrically conductive coatings or contacts are applied.
- Substrates made of glass, such as glass panes, can also be used as inorganic substrates.
- the glass, in particular glass panes, can be provided using the method according to the invention, for example with electrochromic coatings.
- coated by the process according to the invention substrates are suitable for very different applications.
- the coatings have optical and / or electromagnetic effects.
- the coatings have optical and / or electromagnetic effects.
- the coatings may be electrically conductive, semi-conductive or non-conductive.
- Electrically conductive layers may, for example, be in the form of
- Conductor tracks are applied to components. This can be used, for example, to enable the power supply in the context of the electrical system in a motor vehicle component. Furthermore, however, such a track may also be shaped, for example, as an antenna, as a shield, as an electrical contact, etc. This is for example particularly advantageous for RFID applications (radio frequency identification). Furthermore, inventive
- Coatings are used for example for heating purposes or for specific heating of special components or special parts of larger components.
- Liquids, wear and / or corrosion protection coatings Furthermore, the coatings produced can influence the surface tension of liquids or have adhesion-promoting properties.
- the coatings produced according to the invention can furthermore be described as
- Sensor surfaces for example as a human-machine interface (HMI: Human Machine Interface), for example in the form of a touch screen (touch screen) can be used.
- HMI Human Machine Interface
- touch screen touch screen
- the coatings may be used to shield from electromagnetic interference (EMI) or to protect against
- electrostatic discharges are used.
- the coatings can also be used to effect electromagnetic compatibility (EMC).
- EMC electromagnetic compatibility
- layers can be applied by the use of the particles according to the invention, which are applied, for example, to increase the stability of corresponding components after their repair. An example is repairs in the aircraft sector, for example, a loss of material due to
- the coatings serve as electrical contacts and permit electrical connection between different materials.
- Figures 1 and 2 show a wafer coated with solar contact paste, which was coated with a powdery coating material according to the invention using the non-thermal plasma spraying according to Example 14. Examples
- powdered coating materials were carried out by means of a HELOS device (Sympatec, Germany). For the measurement, 3 g of the powdered coating material was placed in the meter and sonicated for 30 seconds prior to measurement. For dispersion, a Rodos T4.1 dispersion unit was used, the primary pressure being 4 bar. The evaluation was carried out with the standard software of the device.
- Example 1 coated with acrylic polymer (poly (iso-butyl methacrylate),
- Example 3 powdered coating materials coated with acrylic polymer (methyl methacrylate)
- the application of the additive was carried out analogously to Example 1.
- the additive used was 2 g of an acrylic polymer based on methyl methacrylate and n-butyl methacrylate (Degalan LP AL 23, FA Evonik).
- the application of the coating aid was carried out analogously to Example 4.
- As a coating aid 3 g of monoethyl fumarate was used.
- Example 6 Powdered with adipic acid monoethyl ester
- the application of the coating aid was carried out analogously to Example 4.
- As a coating aid 3 g Adipinsauremonoethylester were used.
- the application of the coating aid was carried out analogously to Example 4.
- coating assistant 3 g of methyltriglycol were used.
- Example 8 Powdered with adipic acid monoethyl ester
- Example 9 Powdered methyltriglycol
- the application of the coating aid was carried out analogously to Example 4. In this case, however, a copper particle with a D 50 of 34 ⁇ was used.
- As coating assistant 3 g of methyltriglycol were used.
- Example 10 Ethocel coated, powdery coating materials
- the application of the coating aid was carried out analogously to Example 4.
- a copper particle with a D 50 value of 34 ⁇ was used.
- coating assistant 3 g of ethylcellulose (Ethocel
- Example 11 Monoethyl fumarate-coated, powdery
- the application of the coating aid was carried out analogously to Example 4.
- a copper particle with a D 50 value of 34 ⁇ was used.
- coating assistant 3 g of DEGALAN PM 381 (copolymer of methyl methacrylate and isobutyl methacrylate, Evonik) were used.
- Example 12 Powdered with Aerosil 200
- Example 13 Determination of the demandability
- an AS 100 fluidimeter from Sames was used.
- 250 g of the respective particles were charged according to Example 1 to 3 and fluidized with a gas.
- nitrogen was used as the gas.
- a calibrated bore was opened for 30 seconds and the weight (G) of the material flowed out during this time was recorded as a measure.
- Example 14 Non-thermal plasma spraying of tin particles
- the application of the powdery coating material was carried out by means of a Plasmatron plant from Inocon, Attnang-Puchheim, Austria. Nitrogen was used as the ionizable gas.
- Nitrogen was used as the ionizable gas.
- Coating materials were used with additive-coated tin particles according to Example 12 and analogous tin particles without additive.
- Example 15 Slurry spraying of powdery coating materials according to Examples 4 to 11
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Paints Or Removers (AREA)
- Coating By Spraying Or Casting (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
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DE102011052120A DE102011052120A1 (de) | 2011-07-25 | 2011-07-25 | Verwendung speziell belegter, pulverförmiger Beschichtungsmaterialien und Beschichtungsverfahren unter Einsatz derartiger Beschichtungsmaterialien |
DE102011052119A DE102011052119A1 (de) | 2011-07-25 | 2011-07-25 | Verfahren zur Substratbeschichtung und Verwendung additivversehener, pulverförmiger Beschichtungsmaterialien in derartigen Verfahren |
PCT/EP2012/064638 WO2013014213A2 (de) | 2011-07-25 | 2012-07-25 | Verfahren zur substratbeschichtung und verwendung additivversehener, pulverförmiger beschichtungsmaterialien in derartigen verfahren |
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US (1) | US20140230692A1 (de) |
EP (1) | EP2737100B1 (de) |
JP (1) | JP2014527575A (de) |
KR (1) | KR20140061422A (de) |
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- 2012-07-25 JP JP2014522093A patent/JP2014527575A/ja active Pending
- 2012-07-25 CN CN201280046396.2A patent/CN103827344A/zh active Pending
- 2012-07-25 KR KR1020147004893A patent/KR20140061422A/ko not_active Application Discontinuation
- 2012-07-25 WO PCT/EP2012/064638 patent/WO2013014213A2/de active Application Filing
- 2012-07-25 EP EP12741313.6A patent/EP2737100B1/de active Active
- 2012-07-25 CN CN201810874735.5A patent/CN108950459A/zh not_active Withdrawn
- 2012-07-25 US US14/234,851 patent/US20140230692A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2013014213A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2737100B1 (de) | 2018-12-19 |
CN108950459A (zh) | 2018-12-07 |
JP2014527575A (ja) | 2014-10-16 |
WO2013014213A3 (de) | 2013-06-13 |
KR20140061422A (ko) | 2014-05-21 |
CN103827344A (zh) | 2014-05-28 |
US20140230692A1 (en) | 2014-08-21 |
WO2013014213A2 (de) | 2013-01-31 |
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