CN113717325B - Modified aqueous alkyd resin, preparation method thereof and aqueous dispersion containing modified aqueous alkyd resin - Google Patents
Modified aqueous alkyd resin, preparation method thereof and aqueous dispersion containing modified aqueous alkyd resin Download PDFInfo
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- CN113717325B CN113717325B CN202110881209.3A CN202110881209A CN113717325B CN 113717325 B CN113717325 B CN 113717325B CN 202110881209 A CN202110881209 A CN 202110881209A CN 113717325 B CN113717325 B CN 113717325B
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- 229920000180 alkyd Polymers 0.000 title claims abstract description 82
- 239000006185 dispersion Substances 0.000 title claims description 22
- 238000002360 preparation method Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- -1 acrylic ester Chemical class 0.000 claims abstract description 25
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 24
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000178 monomer Substances 0.000 claims abstract description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 17
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003960 organic solvent Substances 0.000 claims abstract description 14
- 239000005711 Benzoic acid Substances 0.000 claims abstract description 12
- 235000010233 benzoic acid Nutrition 0.000 claims abstract description 12
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 12
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 11
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 10
- 239000008158 vegetable oil Substances 0.000 claims abstract description 10
- 239000003999 initiator Substances 0.000 claims abstract description 6
- 229920005862 polyol Polymers 0.000 claims abstract description 6
- 150000003077 polyols Chemical class 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 238000004321 preservation Methods 0.000 claims description 15
- 235000012424 soybean oil Nutrition 0.000 claims description 13
- 239000003549 soybean oil Substances 0.000 claims description 13
- 150000001412 amines Chemical class 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 239000008096 xylene Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical group CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 8
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 6
- 235000021388 linseed oil Nutrition 0.000 claims description 6
- 239000000944 linseed oil Substances 0.000 claims description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 6
- 150000005846 sugar alcohols Polymers 0.000 claims description 6
- FENFUOGYJVOCRY-UHFFFAOYSA-N 1-propoxypropan-2-ol Chemical compound CCCOCC(C)O FENFUOGYJVOCRY-UHFFFAOYSA-N 0.000 claims description 5
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 5
- 239000004359 castor oil Substances 0.000 claims description 5
- 235000019438 castor oil Nutrition 0.000 claims description 5
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 5
- BDLXTDLGTWNUFM-UHFFFAOYSA-N 2-[(2-methylpropan-2-yl)oxy]ethanol Chemical compound CC(C)(C)OCCO BDLXTDLGTWNUFM-UHFFFAOYSA-N 0.000 claims description 4
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims description 4
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 4
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 3
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 3
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 3
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- 229940119545 isobornyl methacrylate Drugs 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 235000019198 oils Nutrition 0.000 claims description 3
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 2
- VPBZZPOGZPKYKX-UHFFFAOYSA-N 1,2-diethoxypropane Chemical compound CCOCC(C)OCC VPBZZPOGZPKYKX-UHFFFAOYSA-N 0.000 claims description 2
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 claims description 2
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 claims description 2
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 claims description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 2
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 2
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 2
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 150000008065 acid anhydrides Chemical class 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 239000006184 cosolvent Substances 0.000 abstract description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical group [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 15
- 238000006136 alcoholysis reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 238000010992 reflux Methods 0.000 description 5
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 5
- 229960002887 deanol Drugs 0.000 description 4
- 239000012972 dimethylethanolamine Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 3
- 239000004342 Benzoyl peroxide Substances 0.000 description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 125000005313 fatty acid group Chemical group 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002081 enamines Chemical class 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Substances [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000001038 titanium pigment Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/01—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/08—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention relates to the technical field of water-based alkyd resin, and discloses modified alkyd resin, wherein the basic alkyd resin comprises, by weight, 10-20 parts of vegetable oil, 0.003-0.012 part of hydroxide, 0.3-1.5 parts of benzoic acid, 5-12 parts of dibasic acid, 2-8 parts of polyol, 1-3 parts of dimethylbenzene and 8-15 parts of organic solvent; 1.2 to 3.0 parts of acrylic acid, 4 to 20 parts of styrene, 1 to 5 parts of epoxy group-containing vinyl monomer, 4 to 20 parts of acrylic ester monomer, 0.3 to 1.0 part of initiator, 2.5 to 5 parts of long-chain alkyl primary amine and 1 to 5 parts of neutralizer are added into basic alkyd resin; its preparing process is also disclosed. The modified alkyd resin prepared by the method can ensure water dispersibility and stability, so that the initial water resistance of a paint film is further improved, and meanwhile, the addition of a cosolvent can be reduced, and VOC is reduced.
Description
Technical Field
The invention relates to the technical field of waterborne alkyd resin, in particular to modified waterborne alkyd resin, a preparation method thereof and an aqueous dispersion containing the modified waterborne alkyd resin.
Background
In recent years, with the enhancement of environmental protection awareness of people and the stricter environmental protection regulations of various countries, the reduction of VOC content in paint has become a research hot spot. Alkyd resin refers to a polyester in which fatty acid side chains are incorporated, i.e., modified with fatty acids. The water-based alkyd resin uses renewable vegetable oil or fatty acid as a main raw material and water as a solvent, so that the VOC content is low, the requirements of the times on environmental protection are met, and the consumption of petroleum due to the use of an organic solvent is reduced; secondly, the water-based alkyd resin has high hydrocarbon content in a molecular structure, low molecular polarity and strong adjustability, is widely applied to industrial coating, and can be used as a primer, a top coat and a single-layer coating on the surfaces of metals, wood and plastics, and also can be used for corrosion-resistant coating and protection of ships, instruments, office equipment, metal building materials and the like.
Although the waterborne nature of alkyd resins brings environmental advantages, it should also be ensured that the synthetic alkyd resins retain the advantages of their conventional solvent-borne alkyds, such as good storage stability, high gloss, drying properties and water and corrosion resistance. However, the existing water-based alkyd resin has the defects of poor water resistance and low drying speed. To improve the water-borne alkyd resins, which suffer from poor water resistance and slow drying, they must be modified.
At present, a plurality of modification methods are used, namely acrylic acid (ester) monomers are utilized to carry out copolymerization grafting on alkyd resin, and then organic amine is utilized to neutralize acrylic acid to be hydrophilic, so that initial drying performance can be improved, and aqueous dispersion with better stability is obtained. In the improved method, in order to ensure the water dispersibility and stability of the resin, the molecular chain of the resin has more hydrophilic groups and has lower molecular weight, so that the initial water resistance of the resin is poor before double bonds are oxidized and crosslinked.
Disclosure of Invention
< technical problem to be solved by the invention >
The method is used for solving the technical problem that the initial water resistance of the water-based alkyd resin modified by the acrylic acid (ester) monomer in the prior art is poor.
< technical scheme adopted by the invention >
In view of the above-described technical problems, an object of the present invention is to provide a modified aqueous alkyd resin, a method for producing the same, and an aqueous dispersion containing the same.
The specific contents are as follows:
first, the invention provides a modified alkyd resin, which comprises, by weight, 10-20 parts of vegetable oil, 0.003-0.012 part of hydroxide, 0.3-1.5 parts of benzoic acid, 5-12 parts of dibasic acid, 2-8 parts of polyol, 1-3 parts of dimethylbenzene and 8-15 parts of organic solvent; 1.2 to 3.0 parts of acrylic acid, 4 to 20 parts of styrene, 1 to 5 parts of epoxy group-containing vinyl monomer, 4 to 20 parts of acrylic ester monomer, 0.3 to 1.0 part of initiator, 2.5 to 5 parts of long-chain alkyl primary amine and 1 to 5 parts of neutralizer are added into basic alkyd resin.
Second, the invention provides a preparation method of modified alkyd resin, which comprises the following steps:
s1, dissolving oil, polyalcohol and hydroxide in ethanol, sequentially adding benzoic acid, dibasic acid and dimethylbenzene for reaction, removing dimethylbenzene after the reaction is finished, cooling, and adding an organic solvent to obtain basic alkyd resin;
s2, heating the basic alkyd resin, dropwise adding a blend containing acrylic acid, styrene, epoxy group-containing vinyl monomers and acrylic ester monomers, and carrying out heat preservation treatment after the dropwise adding is finished;
s3, after the heat preservation is finished, cooling is carried out for the first time, long-chain alkyl primary amine is added, and heat preservation treatment is carried out;
and S4, after the heat preservation is finished, performing secondary cooling, adding an amine neutralizer, and performing heat preservation treatment to obtain the modified waterborne alkyd resin.
Thirdly, the invention provides a modified aqueous alkyd resin aqueous dispersion, which is prepared by adding deionized water into modified alkyd resin and dispersing.
< technical mechanism and advantageous effects of the invention >
(1) The long-chain alkyl primary amine and the epoxy group-containing vinyl monomer are selected as the modifier, and the long-chain alkyl primary amine can react with epoxy groups, carboxyl groups in alkyd resin and acrylic acid to be grafted on the alkyd resin; because the long-chain alkyl has excellent hydrophobicity, the initial water resistance of the paint film can be further improved on the premise of ensuring the water dispersibility and the stability.
(2) The long-chain alkyl primary amine is also a surfactant, has a longer molecular weight and lower surface energy, is grafted on alkyd resin, and has a spiral shape, so that the fluidity of the resin can be improved, the water dilutability is improved, the addition of a cosolvent is reduced, and the VOC is reduced.
(3) By adding the epoxy group-containing vinyl monomer, the long-chain alkyl primary amine can be better grafted on a molecular chain, so that the reaction rate is improved.
(4) Long-chain alkyl primary amines have a higher boiling point and a lower irritating amine odor, resulting in an aqueous alkyd resin dispersion having a low odor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Firstly, the invention provides modified alkyd resin, which comprises, by weight, 10-20 parts of vegetable oil, 0.003-0.012 part of hydroxide, 0.3-1.5 parts of benzoic acid, 5-12 parts of dibasic acid, 2-8 parts of polyol, 1-3 parts of dimethylbenzene and 8-15 parts of organic solvent; 1.2 to 3.0 parts of acrylic acid, 4 to 20 parts of styrene, 1 to 5 parts of epoxy group-containing vinyl monomer, 4 to 20 parts of acrylic ester monomer, 0.3 to 1.0 part of initiator, 2.5 to 5 parts of long-chain alkyl primary amine and 1 to 5 parts of neutralizer are added into basic alkyd resin.
In the present invention, the hydroxide is lithium hydroxide.
In the invention, the epoxy group-containing vinyl monomer is glycidyl methacrylate and/or allyl glycidyl ether.
In the present invention, the long-chain alkyl primary amine includes at least one of dodecylamine, hexadecylamine, oleylamine, octadecylamine, tallow amine, and hydrogenated tallow amine. The oleic acid amine and the beef tallow amine are unsaturated enamine, have an iodine value of 40-100, are grafted to alkyd resin, increase double bond content, improve oxidative crosslinking density, facilitate hardness, and improve water resistance and salt spray resistance.
In the present invention, the acrylic monomer includes at least one of methyl methacrylate, butyl acrylate, butyl methacrylate, isobornyl acrylate, isobornyl methacrylate, or hydroxypropyl acrylate.
In the present invention, the vegetable oil includes at least one of soybean oil, linseed oil, or castor oil.
In the present invention, the dibasic acid includes phthalic anhydride and/or isophthalic acid;
the polyol comprises trimethylolpropane and/or pentaerythritol;
the organic solvent comprises at least one of diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol monomethyl ether, ethylene glycol tertiary butyl ether, propylene glycol diethyl ether, propylene glycol propyl ether, propylene glycol butyl ether or propylene glycol methyl ether.
In the present invention, the initiator comprises benzoyl peroxide and/or tert-butyl peroxybenzoate.
In the invention, the neutralizing agent is an amine neutralizing agent, and the amine neutralizing agent comprises dimethylethanolamine and/or diethanolamine. The amine neutralizer is selected, the boiling point is higher, the pungent amine smell is lower, and the prepared alkyd resin aqueous dispersion has low smell.
Second, the invention provides a preparation method of modified alkyd resin, which comprises the following steps:
s1, dissolving oil, polyalcohol and hydroxide in ethanol, sequentially adding benzoic acid, dibasic acid and dimethylbenzene for reaction, removing dimethylbenzene after the reaction is finished, cooling, and adding an organic solvent to obtain basic alkyd resin;
s2, heating the basic alkyd resin, dropwise adding a blend containing acrylic acid, styrene, epoxy group-containing vinyl monomers and acrylic ester monomers, and carrying out heat preservation treatment after the dropwise adding is finished;
s3, after the heat preservation is finished, cooling is carried out for the first time, long-chain alkyl primary amine is added, and heat preservation treatment is carried out;
and S4, after the heat preservation is finished, performing secondary cooling, adding an amine neutralizer, and performing heat preservation treatment to obtain the modified waterborne alkyd resin.
In particular, the method comprises the steps of,
s1, carrying out alcoholysis on vegetable oil, polyalcohol and hydroxide at 230-250 ℃ until the vegetable oil, polyalcohol and hydroxide are dissolved in 95% ethanol (25 ℃) with 5 times of volume until the vegetable oil, polyalcohol and hydroxide are clear; and after the alcoholysis is finished, adding benzoic acid, dibasic acid and refluxing dimethylbenzene, reacting at 170-210 ℃ until the acid value is 16-24 mgKOH/g, cooling to 155-160 ℃, vacuum removing dimethylbenzene, cooling to 100 ℃, and adding an organic solvent to obtain the basic alkyd resin.
S2, heating the basic alkyd resin to 125-135 ℃, dropwise adding a mixture of acrylic acid, styrene, epoxy group-containing vinyl monomers, acrylic ester monomers and an initiator in 1.5-3.0 h, and preserving heat for 1-3 h after the dropwise adding is finished.
S3, once cooling to 80-110 ℃, adding long-chain alkyl primary amine, and preserving heat for 1-2 h.
S4, cooling to 80 ℃ for the second time, adding an amine neutralizer, and preserving heat for 0.5-1 h.
Thirdly, the invention provides a modified aqueous alkyd resin aqueous dispersion, which is prepared by adding deionized water into modified aqueous alkyd resin and dispersing.
Specifically, adding deionized water at 80 ℃ into the obtained modified water-based alkyd resin, and dispersing at a high speed for 15-30 min to obtain the modified alkyd dispersion; wherein, the adding amount of deionized water is 35-55 parts.
< example >
Example 1
The preparation method of the modified aqueous alkyd resin water dispersion comprises the following steps:
s1, carrying out alcoholysis on 14.5 parts of soybean oil, 3.8 parts of pentaerythritol and 0.003 part of lithium hydroxide at 250 ℃ until the soybean oil is dissolved in 5 times of 95% ethanol (25 ℃) and is clear; after alcoholysis, 0.5 part of benzoic acid, 7.2 parts of isophthalic acid and 1.8 parts of refluxing xylene are added, the mixture is reacted at 170-210 ℃ until the acid value is 16-24 mg KOH/g, the temperature is reduced to 155-160 ℃, the xylene is removed in vacuum, the temperature is reduced to 100 ℃, and 11.7 parts of ethylene glycol butyl ether is added, and the basic alkyd resin is obtained by blending.
S2, heating the basic alkyd resin to 125-135 ℃, dropwise adding a mixture of 1.9 parts of acrylic acid, 11.2 parts of styrene, 1.5 parts of glycidyl methacrylate, 0.1 part of benzoyl peroxide and 0.4 part of tert-butyl peroxybenzoate in 2 hours, and preserving heat for 2 hours after the dropwise adding.
S3, once cooling to 90 ℃, adding 1.5 parts of dodecyl amine, and preserving heat for 2 hours.
S4, cooling to 80 ℃ for the second time, adding 3.3 parts of dimethylethanolamine, and preserving heat for 0.5h.
S5, adding 58 parts of deionized water at 80 ℃ and dispersing at a high speed for 15min to obtain the modified aqueous alkyd resin aqueous dispersion.
Example 2
The preparation method of the modified aqueous alkyd resin water dispersion comprises the following steps:
s1, carrying out alcoholysis on 10 parts of soybean oil, 5.5 parts of linseed oil, 4.0 parts of pentaerythritol and 0.01 part of lithium hydroxide at 240 ℃ until the soybean oil is dissolved in 5 times of 95% ethanol (25 ℃) and is clear; after alcoholysis, 0.5 part of benzoic acid, 6.6 parts of phthalic anhydride and 1.5 parts of refluxing xylene are added, the mixture is reacted at 170-210 ℃ until the acid value is 16-24 mg KOH/g, the temperature is reduced to 155-160 ℃, xylene is removed in vacuum, the temperature is reduced to 100 ℃, 8.5 parts of propylene glycol propyl ether, 4.2 parts of ethylene glycol tertiary butyl ether and 0.3 part of diethylene glycol butyl ether are added, and the basic alkyd resin is obtained by blending.
S2, heating the basic alkyd resin to 125-135 ℃, dropwise adding a mixture of 2.3 parts of acrylic acid, 8.2 parts of styrene, 2.0 parts of glycidyl methacrylate, 4 parts of isobornyl methacrylate, 2 parts of butyl acrylate, 0.3 part of benzoyl peroxide and 0.5 part of tert-butyl peroxybenzoate in 2 hours, and preserving the heat for 2 hours after the dropwise adding.
S3, once cooling to 100 ℃, adding 1.5 parts of oleylamine, and preserving heat for 2 hours.
S4, cooling to 80 ℃ for the second time, adding 3.3 parts of dimethylethanolamine, and preserving heat for 0.5h.
S5, adding 58 parts of deionized water at 80 ℃ and dispersing at a high speed for 15min to obtain the modified aqueous alkyd resin aqueous dispersion.
Example 3
The preparation method of the modified aqueous alkyd resin water dispersion comprises the following steps:
s1, carrying out alcoholysis on 10 parts of soybean oil, 5.5 parts of linseed oil, 4.0 parts of pentaerythritol and 0.01 part of lithium hydroxide at 240 ℃ until the soybean oil is dissolved in 5 times of 95% ethanol (25 ℃) and is clear; after alcoholysis, 0.5 part of benzoic acid, 6.6 parts of phthalic anhydride and 1.5 parts of refluxing xylene are added, the mixture is reacted at 170-210 ℃ until the acid value is 16-24 mg KOH/g, the temperature is reduced to 155-160 ℃, xylene is removed in vacuum, the temperature is reduced to 100 ℃, 13 parts of propylene glycol propyl ether and 2 parts of propylene glycol methyl ether are added, and the basic alkyd resin is obtained by blending.
S2, heating the basic alkyd resin to 125-135 ℃, dropwise adding a mixture of 2.3 parts of acrylic acid, 14 parts of styrene, 0.8 part of glycidyl methacrylate, 0.56 part of allyl glycidyl ether, 5.5 parts of methyl methacrylate, 0.5 part of hydroxypropyl acrylate and 0.7 part of tert-butyl peroxybenzoate in 2 hours, and preserving heat for 2 hours after the dropwise adding.
S3, once cooling to 100 ℃, adding 3.0 parts of oleylamine, and preserving heat for 2 hours.
S4, cooling to 80 ℃ for the second time, adding 3.7 parts of diethanolamine, and preserving heat for 0.5h.
S5, adding 58 parts of deionized water at 80 ℃ and dispersing at a high speed for 15min to obtain the modified aqueous alkyd resin aqueous dispersion.
Example 4
The preparation method of the modified aqueous alkyd resin water dispersion comprises the following steps:
s1, carrying out alcoholysis on 10 parts of soybean oil, 5.5 parts of linseed oil, 4.0 parts of pentaerythritol and 0.01 part of lithium hydroxide at 250 ℃ until the soybean oil is dissolved in 5 times of 95% ethanol (25 ℃) and is clear; after alcoholysis, 0.5 part of benzoic acid, 6.4 parts of phthalic anhydride and 1.5 parts of refluxing xylene are added, the mixture is reacted at 170-210 ℃ until the acid value is 16-24 mg KOH/g, the temperature is reduced to 155-160 ℃, xylene is removed in vacuum, the temperature is reduced to 100 ℃, 5 parts of propylene glycol propyl ether, 7.9 parts of ethylene glycol tertiary butyl ether and 0.1 part of dipropylene glycol butyl ether are added, and the basic alkyd resin is obtained by blending.
S2, heating the basic alkyd resin to 125-135 ℃, dropwise adding a mixture of 1.8 parts of acrylic acid, 7.2 parts of styrene, 1.0 part of glycidyl methacrylate, 1.8 parts of methyl methacrylate and 0.5 part of tert-butyl peroxybenzoate in 1.5 hours, and preserving heat for 2 hours after the dropwise adding.
S3, once cooling to 90 ℃, adding 1.0 part of octadecylamine, and preserving heat for 1h.
S4, cooling to 80 ℃ for the second time, adding 3.7 parts of diethanolamine, and preserving heat for 0.5h.
S5, adding 58 parts of deionized water at 80 ℃ and dispersing at a high speed for 15min to obtain the modified aqueous alkyd resin aqueous dispersion.
Example 5
This example differs from example 1 in that the soybean oil is replaced by a combination of soybean oil, linseed oil and castor oil, wherein 8 parts of soybean oil, 5 parts of castor oil and 6 parts of castor oil.
Comparative example
Comparative example 1
This comparative example differs from example 3 in that glycidyl methacrylate and amine oleate were not added.
Comparative example 2
This comparative example differs from example 1 in that no glycidyl methacrylate was added.
Comparative example 3
This comparative example differs from example 1 in that no dodecylamine was added.
< test example >
Examples 1 to 4, comparative examples 1 to 3, wherein examples are represented by E and comparative examples are represented by C, are taken as samples.
(1) The results of the index measurement of the samples are shown in Table 1.
Table 1 various indices of modified waterborne alkyd aqueous dispersions
| Index (I) | E1 | E2 | E3 | E4 | C1 | C2 | C3 |
| Solids content/% | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| viscosity/Pa.s | 1090 | 650 | 720 | 1480 | 8200 | 5000 | 32000 |
| pH value of | 9 | 8 | 8.5 | 8.5 | 9 | 9 | 9 |
| Solvent content/% | 10.3 | 10 | 10.2 | 12.2 | 10.3 | 10.3 | 10.3 |
| Days for heat storage at 50 deg.c | ＞30 | ＞30 | ＞30 | ＞30 | ＞30 | ＞30 | ＞30 |
(2) The sample was added to the paint to conduct paint film property measurement
52 parts of modified aqueous alkyd resin aqueous dispersion, 1.3 parts of aqueous cobalt drier, 0.3 part of dispersing agent 5029, 0.25 part of wetting agent 755W, 0.2 part of bentonite, 3 parts of titanium pigment, 0.1 part of defoamer 1390, 23 parts of barium sulfate and 3 parts of deionized water are ground for 1h at 1500r/min and dispersed to be less than 15 mu m to obtain a first mixture; 15 parts of modified aqueous alkyd resin aqueous dispersion, 1.5 parts of deionized water, 0.3 part of pH regulator-dimethylethanolamine, 0.2 part of flash rust inhibitor-sodium nitrite and 0.3 part of carbon black color paste are added into the first mixture, and the mixture is stirred for 10 minutes at 600r/min to obtain the coating.
The performance of the paint prepared by the method is measured by referring to the method of GB/T25251-2010 alkyd resin paint. The temperature is more than 20 ℃ and the humidity is less than 65% in the test environment. The measurement results are shown in Table 2.
TABLE 2 determination of paint film properties
| Measurement index | E1 | E2 | E3 | E4 | C1 | C2 | C3 |
| Time of surface drying | ＜8h | ＜8h | ＜8h | ＜8h | ＜8h | ＜8h | ＜8h |
| Real dry (Jia Fa) | ≤24h | ≤24h | ≤24h | ≤24h | ≤24h | ≤24h | ≤24h |
| Hardness (168 h) | ≥B | ≥B | ≥B | ≥B | ≥B | ≥B | ≥B |
| Initial water resistance (4 h) | 72h | 48h | 52h | 60h | 12h | 36h | 16h |
| Water-proof (drying 24 h) | 72h | 60h | 70h | 68h | 12h | 40h | 15h |
| Water-proof (drying 168 h) | 120h | 144h | 130h | 98h | 46h | 50h | 48h |
| Acid mist resistant (drying 168 h) | 200h | 240h | 210h | 170h | 48h | 100h | 48h |
| Adhesion force | ≤1 | ≤1 | ≤1 | ≤1 | ≤2 | ≤1 | ≤1 |
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The modified alkyd resin is characterized by comprising, by weight, 10-20 parts of vegetable oil, 0.003-0.012 part of hydroxide, 0.3-1.5 parts of benzoic acid, 5-12 parts of dibasic acid and/or phthalic anhydride, 2-8 parts of polyol, 1-3 parts of a first xylene organic solvent and 8-15 parts of a second organic solvent; 1.2-3.0 parts of acrylic acid, 4-20 parts of styrene, 1-5 parts of epoxy group-containing vinyl monomer, 4-20 parts of acrylic ester monomer, 0.3-1.0 parts of initiator, 2.5-5 parts of long-chain alkyl primary amine and 1-5 parts of neutralizer are added into the basic alkyd resin; the long-chain alkyl primary amine comprises at least one of dodecyl amine, hexadecyl amine and octadecyl amine;
the preparation method comprises the following steps:
s1, dissolving oil, polyalcohol and hydroxide in ethanol, sequentially adding benzoic acid, dibasic acid and a first xylene organic solvent for reaction, removing the first xylene organic solvent after the reaction is finished, cooling, and adding a second organic solvent to obtain basic alkyd resin;
s2, heating the basic alkyd resin, dropwise adding a blend containing acrylic acid, styrene, epoxy group-containing vinyl monomers and acrylic ester monomers, and carrying out heat preservation treatment after the dropwise adding is finished;
s3, after the heat preservation is finished, cooling is carried out for the first time, long-chain alkyl primary amine is added, and heat preservation treatment is carried out;
and S4, after the heat preservation is finished, performing secondary cooling, adding an amine neutralizer, and performing heat preservation treatment to obtain the modified waterborne alkyd resin.
2. The modified alkyd resin of claim 1, wherein the epoxy-containing vinyl monomer is glycidyl methacrylate and/or allyl glycidyl ether.
3. The modified alkyd resin of claim 1, wherein the acrylic monomer comprises at least one of methyl methacrylate, butyl acrylate, butyl methacrylate, isobornyl acrylate, isobornyl methacrylate, or hydroxypropyl acrylate.
4. The modified alkyd resin of claim 1, wherein the vegetable oil comprises at least one of soybean oil, linseed oil, or castor oil.
5. A modified alkyd resin according to any of claims 1-4, wherein,
the dibasic acid is isophthalic acid;
the polyol comprises trimethylolpropane and/or pentaerythritol;
the organic solvent II comprises at least one of diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol monomethyl ether, ethylene glycol tertiary butyl ether, propylene glycol diethyl ether, propylene glycol propyl ether, propylene glycol butyl ether or propylene glycol methyl ether.
6. The modified alkyd resin according to claim 1, wherein in S1, the reaction temperature is 170-210 ℃, and the determination of the reaction end point is an acid value of 16-24 mg KOH/g.
7. A modified alkyd resin according to claim 1, wherein,
s2, heating to 125-135 ℃, and preserving heat for 1-3 hours;
s3, cooling to 80-110 ℃ for one time, and preserving heat for 1-2 hours;
and S4, secondarily cooling to 80 ℃, and preserving heat for 0.5-1 h.
8. A modified aqueous alkyd resin aqueous dispersion, characterized in that the modified alkyd resin obtained in claim 1 is added with deionized water and dispersed to obtain the finished product.
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| CN109575195A (en) * | 2018-12-11 | 2019-04-05 | 成都杰晟蜀邦新材料科技有限公司 | A kind of modified alkyd resin and preparation method thereof |
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| US20060270769A1 (en) * | 2005-05-24 | 2006-11-30 | Shoaf Glenn L | Acrylic-modified alkyd hybrid latexes and their use as viscosity modifiers |
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| CN1729262A (en) * | 2002-12-19 | 2006-02-01 | 伊斯曼化学公司 | Self-crosslinking aqueous acetoacetate-functionalized sulfonated alkyd systems |
| CN101307137A (en) * | 2007-05-17 | 2008-11-19 | 上海涂料有限公司技术中心 | Water dispersion of self-drying acrylic modified alkyd resin industrial topcoat using the water dispersion as base |
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