CN112375463A - Environment-friendly high-solid-content heavy-duty anticorrosive paint for inner wall of storage tank and preparation method thereof - Google Patents
Environment-friendly high-solid-content heavy-duty anticorrosive paint for inner wall of storage tank and preparation method thereof Download PDFInfo
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- CN112375463A CN112375463A CN202011356956.7A CN202011356956A CN112375463A CN 112375463 A CN112375463 A CN 112375463A CN 202011356956 A CN202011356956 A CN 202011356956A CN 112375463 A CN112375463 A CN 112375463A
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- epoxy resin
- scale
- modified
- solvent
- Prior art date
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- Pending
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- 238000003860 storage Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003973 paint Substances 0.000 title claims description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 31
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 31
- 239000007822 coupling agent Substances 0.000 claims abstract description 25
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 6
- -1 polyethylene Polymers 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000011521 glass Substances 0.000 claims description 19
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 12
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000008096 xylene Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 239000004843 novolac epoxy resin Substances 0.000 claims description 5
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 4
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 150000004645 aluminates Chemical class 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 239000002318 adhesion promoter Substances 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000008267 milk Substances 0.000 claims description 2
- 210000004080 milk Anatomy 0.000 claims description 2
- 235000013336 milk Nutrition 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 2
- 239000003513 alkali Substances 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 239000002253 acid Substances 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 239000000080 wetting agent Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000005388 borosilicate glass Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920003986 novolac Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000013530 defoamer Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 description 1
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 description 1
- RWLDCNACDPTRMY-UHFFFAOYSA-N 3-triethoxysilyl-n-(3-triethoxysilylpropyl)propan-1-amine Chemical compound CCO[Si](OCC)(OCC)CCCNCCC[Si](OCC)(OCC)OCC RWLDCNACDPTRMY-UHFFFAOYSA-N 0.000 description 1
- JTXUAHIMULPXKY-UHFFFAOYSA-N 3-trihydroxysilylpropan-1-amine Chemical compound NCCC[Si](O)(O)O JTXUAHIMULPXKY-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000219307 Atriplex rosea Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- KBJFYLLAMSZSOG-UHFFFAOYSA-N n-(3-trimethoxysilylpropyl)aniline Chemical compound CO[Si](OC)(OC)CCCNC1=CC=CC=C1 KBJFYLLAMSZSOG-UHFFFAOYSA-N 0.000 description 1
- KOVKEDGZABFDPF-UHFFFAOYSA-N n-(triethoxysilylmethyl)aniline Chemical compound CCO[Si](OCC)(OCC)CNC1=CC=CC=C1 KOVKEDGZABFDPF-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the field of anticorrosive coatings, and particularly relates to an environment-friendly high-solid-content heavy-duty anticorrosive coating for an inner wall of a storage tank and a preparation method thereof. 40-60 parts of scale, 15-20 parts of epoxy resin, 0.1-1 part of coupling agent, 10-15 parts of solvent and 5-10 parts of low molecular wax. The modified scale slurry obtained by the invention carries out surface modification on scales in a system through a coupling agent and low molecular wax, improves the compatibility of the scales and epoxy resin, and the coating obtained by utilizing the modified scale slurry has excellent chemical corrosion resistance, especially outstanding acid and alkali corrosion resistance, and can be used in strong corrosion environments such as acid and alkali. Has excellent ageing resistance, can be used for a long time and does not generate pulverization. Good temperature resistance, small thermal expansion coefficient and good wear resistance.
Description
Technical Field
The invention relates to the field of anticorrosive coatings, and particularly relates to an environment-friendly high-solid-content heavy-duty anticorrosive coating for an inner wall of a storage tank and a preparation method thereof.
Background
Traditional storage tank inner wall anticorrosive coating mostly adds the scale in the resin, wherein with epoxy coating many, the parallel arrangement forms labyrinth effect in the resin of scale, prolongs corrosive medium infiltration route, improves the anticorrosive ageing of product, but the scale is mostly inorganic material, and the difference of surface energy between with epoxy is too big, therefore the scale is difficult to homodisperse in epoxy, influences the anticorrosive effect and the life of coating.
And the traditional anticorrosive paint construction mode is to respectively coat a primer and an intermediate paint, so the construction mode is complicated, the construction period is long, and the improvement is urgently needed.
Disclosure of Invention
The invention provides an environment-friendly high-solid-content heavy-duty anticorrosive paint for the inner wall of a storage tank and a preparation method thereof, aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the modified scale slurry comprises, by weight, 40-60 parts of scales, 15-20 parts of epoxy resin, 0.1-1 part of coupling agent, 10-15 parts of solvent and 5-10 parts of low molecular wax.
The scale is one or more of glass scale, mica iron oxide scale and graphite scale;
the glass flakes comprise one or more of 120-mesh medium-alkali glass flakes, 200-mesh medium-alkali glass flakes, 325-mesh medium-alkali glass flakes, 120-mesh borosilicate glass flakes, 200-mesh borosilicate glass flakes and 325-mesh borosilicate glass flakes.
The mica flake comprises one or more of dry white mica flake, wet white mica flake, phlogopite flake, sericite flake, biotite flake and synthetic mica flake.
The mica iron oxide scale comprises one or more of mica iron oxide ash scales and mica iron oxide red scales.
The graphite flakes comprise one or more of high-purity graphite flakes, high-carbon graphite flakes, medium-carbon graphite flakes and low-carbon graphite flakes.
The low molecular wax comprises one or more of polyamide wax, ethylene-vinyl acetate copolymer wax dispersion liquid, polyethylene wax, polytetrafluoroethylene wax, composite polyolefin compound and synthetic wax;
the coupling agent is one or more of silane coupling agent, titanate coupling agent and aluminate coupling agent;
the silane coupling agent comprises gamma-aminopropyltriethoxysilane, gamma-aminopropyltrimethoxysilane, gamma-aminopropylmethyldiethoxysilane, gamma-aminopropylsilanetriol, gamma-aminopropylmethyldimethoxysilane, N-phenyl-gamma-aminopropyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N-diethyl-3-aminopropyltrimethoxysilane, N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma-diethylenetriaminopropyltrimethoxysilane, gamma-diethylaminomethyltriethoxysilane, N-phenylaminomethyltriethoxysilane, bis- (gamma-trimethoxysilylpropyl) amine, One or more of bis (3-triethoxysilylpropyl) amine and hexamethyldisilazane.
The titanate coupling agent comprises one or more of tetraisopropyl di (dioctyl phosphite acyloxy) titanate, propyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, isopropyl tri (dioctyl phosphate acyloxy) titanate, isopropyl trioleate acyloxy titanate, isopropyl tri (dodecyl benzene sulfonic acid) titanate, isopropyl tri (dioctyl pyrophosphate acyloxy) ethylene titanate, tetra-n-butyl titanate and tetra-isopropyl titanate, and preferably tetraisopropyl di (dioctyl phosphite acyloxy) titanate.
The aluminate coupling agent comprises one or more of (ethyl acetoacetate) diisopropyl aluminate, (acetylacetone) diisopropyl aluminate, isopropyl distearyl acyloxy aluminate, an aluminum-titanium compound and high-purity aluminate.
The epoxy resin is one or more of bisphenol A type epoxy resin, bisphenol F type epoxy resin and novolac epoxy resin;
the bisphenol A epoxy resin comprises one or more of PGE modified type, CGE modified type, AGE modified type and BGE modified type.
The bisphenol F type epoxy resin comprises one or more of BPA/BPF/AGE diluted type, standard type BPF resin and BPA/BPF mixed type.
The novolac epoxy resin comprises one or more of phenol novolac resin, methyl phenol novolac resin, tetrafunctional group novolac resin and solvent epoxy resin.
The solvent is one or more of toluene, xylene, ethanol, butanol, diacetone alcohol, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, acetone, butanone and methyl isobutyl ketone.
The scale, the coupling agent and the epoxy resin are put in a solvent according to the proportion, the coupling agent is grafted on the surface of the glass scale in a chemical bond form to obtain stable modified scale, and then low molecular wax is added to obtain modified scale slurry.
A process for preparing modified scale slurry includes such steps as proportionally mixing scale, coupling agent and epoxy resin in solvent, grafting the coupling agent onto the surface of glass scale in chemical bond mode to obtain stable modified scale, and adding low-molecular wax to obtain modified scale slurry.
Further, according to the proportion, stirring the solvent, the epoxy resin and the scale for 40-50min at 20-25 ℃, dropwise adding the coupling agent into the dispersion under the protection of nitrogen, heating to 70-80 ℃ after dropwise adding, reacting for 4-4.5h, cooling to 20-25 ℃ after the reaction is finished, adding the low molecular wax, and dispersing for 10-20min to obtain the modified scale slurry.
An environment-friendly high-solid-content heavy-duty anticorrosive coating for the inner wall of a storage tank, which consists of A, B two components in a mass part ratio of 4-20: 1; the component A comprises, by mass, 100 parts of 20-30 parts of epoxy resin, 30-35 parts of the modified flake pulp of claim 1, 10-30 parts of pigment and filler, 8-12 parts of solvent A and 0-5 parts of auxiliary agent; the component B comprises 90-95 parts of curing agent and 0-5 parts of solvent B.
The epoxy resin is one or more of bisphenol A type epoxy resin, bisphenol F type epoxy resin and novolac epoxy resin; the pigment and filler is one or more of iron oxide red, zinc phosphate, zinc phosphomolybdate, aluminum tripolyphosphate, barium sulfate, calcium carbonate, talcum powder, bentonite, titanium white, calcium sulfate, aluminum sulfate, quartz powder, feldspar powder and silica micropowder; the solvent A and the solvent B can be the same or different and are selected from one or more of toluene, xylene, ethanol, butanol, diacetone alcohol, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, acetone, butanone and methyl isobutyl ketone; the auxiliary agent is one or more of a defoaming agent, a wetting dispersant, a rheological auxiliary agent and an adhesion promoter;
the defoaming agent is one or more of a high molecular polymer defoaming agent, a modified polysiloxane defoaming agent and a hydrophobic particle-containing polysiloxane defoaming agent.
The wetting dispersant is one or more of a modified polysiloxane wetting agent, a high molecular weight carboxylic acid wetting agent, an electrically neutral polycarboxylic amine salt wetting agent, an acid-group-containing copolymer solution wetting agent, an anionic surfactant wetting agent, a polyurethane compound wetting agent, a modified alkyd type wetting agent and a modified acrylic polymer wetting agent.
The rheological additive is one or more of polysiloxane, modified polysiloxane, polyester modified polysiloxane, polyether modified organic siloxane, acrylate copolymer and fluorine modified polyacrylate copolymer.
The adhesion promoter is one or more of epoxy silane compound, amino silane compound, resin compound without polysiloxane, chlorinated polyolefin modified acrylic resin.
The curing agent is a phenolic aldehyde amine curing agent. The curing agent is one or more of aliphatic phenolic aldehyde amine curing agent, alicyclic phenolic aldehyde amine curing agent, aromatic phenolic aldehyde amine curing agent and polyether amine modified phenolic aldehyde amine curing agent.
The phenolic aldehyde amine curing agent is one or more of aliphatic phenolic aldehyde amine curing agent, alicyclic phenolic aldehyde amine curing agent, aromatic phenolic aldehyde amine curing agent and polyether amine modified phenolic aldehyde amine curing agent.
A preparation method of an environment-friendly high-solid-content heavy-duty anticorrosive coating on the inner wall of a storage tank comprises the following steps:
1) the preparation process of the component A comprises the following steps: uniformly dispersing the epoxy resin in the solvent A according to the proportion, adding the antirust filler, the inorganic filler and the auxiliary agent in the dispersing process, grinding for 40-50min, filtering, adding the modified flake pulp into the collected milk pulp, and dispersing for 10-20min to obtain a component A;
2) the preparation process of the component B comprises the following steps: dispersing polyamine curing agent in solvent B for 10-15min to obtain component B;
3) anticorrosive paint: when in use, the component A and the component B are composed according to the mass part ratio of 4-20: 1.
The invention has the advantages that:
the modified scale slurry obtained by the invention carries out surface modification on scales in a system through a coupling agent and low molecular wax, improves the compatibility of the scales and epoxy resin, improves the directional arrangement degree of the scales, enables the scales to be uniformly dispersed and arranged in parallel, and prolongs the permeation path of corrosive media.
The modified flake pulp is used for preparing the anticorrosive coating for the inner wall of the storage tank, and the anticorrosive coating prepared by the modified flake pulp and a specific system has higher solid content, low voc emission and environmental friendliness, so that the modified flakes can be better arranged and uniformly dispersed in resin, the anticorrosive capability of the coating is improved, and the anticorrosive aging of the product is improved.
The coating is thick paste type coating, can be formed at one time, saves construction time and cost, can adopt various construction modes such as brushing, roller coating, spraying and the like, and has flexible construction modes.
The coating has excellent chemical corrosion resistance, especially excellent acid and alkali corrosion resistance, and can be used in strong corrosion environments such as acid or alkali. Has excellent ageing resistance, can be used for a long time and does not generate pulverization. Good temperature resistance, small thermal expansion coefficient and good wear resistance.
Detailed Description
The technical solutions, the technical problems to be solved, the technical solutions and the beneficial effects in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and the described embodiments are only a part of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Example 1
Preparing modified flake pulp:
adding 18 parts of dimethylbenzene and 4 parts of butanol, 20 parts of 6101 epoxy resin and 50 parts of 325-mesh medium-alkali glass flakes into a dry flask, stirring for 40min at 20 ℃, dripping 0.1 part of coupling agent HY401 into the flask under the protection of nitrogen, heating to 80 ℃ and reacting for 4 h. And after the reaction is finished, cooling to 25 ℃, adding 10 parts of low molecular wax, and dispersing for 15min to obtain the modified flake pulp.
Different modified flake pulps were prepared according to the parts of the materials used in the above preparation method, see table 1.
Preparing scale slurry:
adding 18 parts of dimethylbenzene, 4 parts of butanol, 20 parts of 6101 epoxy resin and 50 parts of glass flakes into a drying flask, stirring for 40min at the temperature of 20 ℃, and heating to 80 ℃ for reaction for 4 h. And after the reaction is finished, cooling to 25 ℃ to obtain the scale slurry.
Table 1 modified scale slurries 2-20 examples formulations table
Meanwhile, the scale slurry was used as a comparative example in which the glass scale was 325 mesh medium alkali glass scale (comparative example 1) and 800 mesh medium alkali glass scale (comparative example 2).
Preparing an environment-friendly high-solid-content heavy-duty anticorrosive coating on the inner wall of the storage tank:
the preparation process of the component A comprises the following steps: modified flake slurry is obtained according to the formula and the example in the table 1, 30 parts of resin is uniformly dispersed in a mixed solvent of 7 parts of xylene and 3 parts of butanol, the rotating speed is adjusted to 1500r/min, 1 part of bentonite 4611, 0.5 part of defoamer, a moderate 6800, 10 parts of RS11 iron oxide red, 5 parts of TP409 modified zinc phosphate, 8 parts of 800-mesh precipitated barium sulfate, 5 parts of 800-mesh talcum powder and 0.5 part of defoamer, a moderate 8629 are sequentially added, the mixture is dispersed for 15min, the mixture is ground to the fineness of less than 40 mu m by a sand mill, and the mixture is filtered. Respectively adding 30 parts of modified flake or comparative flake slurry (in the comparative example, the glass flake is 325 mesh medium-alkali glass flake (comparative example 1) and 800 mesh medium-alkali glass flake (comparative example 2)) obtained according to the formula and the example in the table 1, adding the mixture into grinding slurry for 1000r/min to disperse for 15min, and filtering to obtain the component A.
The preparation process of the component B comprises the following steps: 95 parts of polyamine epoxy curing agent 1305, 3.5 parts of dimethylbenzene and 1.5 parts of butanol are uniformly mixed at 1000r/min to obtain a component B.
According to the preparation steps of the modified flake slurry in the embodiment 1, the glass flake, the coupling agent and the low molecular wax are replaced according to the steps shown in the table 1, other steps in the reaction process are unchanged, and the component A and the component B are compounded according to the mass ratio of 5:1, so that the environment-friendly high-solid-content heavy-duty anticorrosive coating for the inner wall of the storage tank is obtained.
The obtained component A and the component B are uniformly mixed according to a proportion, coating is carried out on a standard test steel plate, after 7 days of maintenance, a salt spray resistance experiment is carried out according to a standard GB/T1771-2007, and a 10% hydrofluoric acid resistance, a 15% nitric acid resistance, a 20% hydrochloric acid resistance, a 25% sulfuric acid resistance, a 25% sodium hydroxide resistance, a gasoline resistance, a kerosene resistance, a diesel oil resistance, an ethanol resistance, a toluene resistance, a xylene resistance and a 10% NaCl resistance (60 ℃) experiment is carried out according to a standard GB/T9274-1988 (see table 2).
Table 2 examples 1-20 test data
TABLE 3 solvent resistance test data
As can be seen from tables 2 and 3, the salt spray resistance and acid and alkali resistance of the coating product using the modified flake slurry of the present invention are greatly improved compared with the product without the modified flake, and the examples 1, 4, 11 and 17 have better comprehensive performance, so that the addition of the modified flake improves the compatibility in the resin, makes the dispersion thereof more uniform, forms a labyrinth structure arranged in parallel, prolongs the time of the corrosive medium reaching the base material, and improves the corrosion protection effect.
The invention is not limited to the specific embodiments described above, and many variations can be made by those skilled in the art without inventive effort. All technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experimentation on the basis of the prior art by means of the inventive concept are intended to be within the scope of protection defined by the claims.
Claims (9)
1. A modified flake pulp is characterized in that: 40-60 parts of scale, 15-20 parts of epoxy resin, 0.1-1 part of coupling agent, 10-15 parts of solvent and 5-10 parts of low molecular wax.
2. The modified flake slurry of claim 1, wherein: the scale is one or more of glass scale, mica iron oxide scale and graphite scale; the low molecular wax comprises one or more of polyamide wax, ethylene-vinyl acetate copolymer wax dispersion liquid, polyethylene wax, polytetrafluoroethylene wax, composite polyolefin compound and synthetic wax; the coupling agent is one or more of silane coupling agent, titanate coupling agent and aluminate coupling agent; the epoxy resin is one or more of bisphenol A type epoxy resin, bisphenol F type epoxy resin and novolac epoxy resin; the solvent is one or more of toluene, xylene, ethanol, butanol, diacetone alcohol, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, acetone, butanone and methyl isobutyl ketone.
3. Modified flake pulp according to claim 1 or 2, characterized in that: the scale, the coupling agent and the epoxy resin are put in a solvent according to the proportion, the coupling agent is grafted on the surface of the glass scale in a chemical bond form to obtain stable modified scale, and then low molecular wax is added to obtain modified scale slurry.
4. A method of preparing the modified flake slurry of claim 1, characterized in that: the scale, the coupling agent and the epoxy resin are put in a solvent according to the proportion, the coupling agent is grafted on the surface of the glass scale in a chemical bond form to obtain stable modified scale, and then the low molecular wax is added to obtain modified scale slurry.
5. A process for preparing a modified flake slurry of claim 4, wherein: according to the proportion, stirring the solvent, the epoxy resin and the scale for 40-50min at 20-25 ℃, dropwise adding the coupling agent into the dispersion under the protection of nitrogen, heating to 70-80 ℃ after dropwise adding, reacting for 4-4.5h, cooling to 20-25 ℃ after the reaction is finished, adding the low molecular wax, and dispersing for 10-20min to obtain the modified scale slurry.
6. An environment-friendly high-solid-content heavy-duty anticorrosive coating for inner walls of storage tanks is characterized in that: the environment-friendly high-solid-content heavy-duty anticorrosive paint on the inner wall of the storage tank consists of A, B two components in a mass part ratio of 4-20: 1; the component A comprises, by mass, 100 parts of 20-30 parts of epoxy resin, 30-35 parts of the modified flake pulp of claim 1, 10-30 parts of pigment and filler, 8-12 parts of solvent A and 0-5 parts of auxiliary agent; the component B comprises 90-95 parts of curing agent and 0-5 parts of solvent B.
7. The environment-friendly high-solid-content heavy-duty anticorrosive coating for the inner wall of the storage tank, according to claim 6, is characterized in that: the epoxy resin is one or more of bisphenol A type epoxy resin, bisphenol F type epoxy resin and novolac epoxy resin; the pigment and filler is one or more of iron oxide red, zinc phosphate, zinc phosphomolybdate, aluminum tripolyphosphate, barium sulfate, calcium carbonate, talcum powder, bentonite, titanium white, calcium sulfate, aluminum sulfate, quartz powder, feldspar powder and silica micropowder; the solvent A and the solvent B can be the same or different and are selected from one or more of toluene, xylene, ethanol, butanol, diacetone alcohol, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, acetone, butanone and methyl isobutyl ketone; the auxiliary agent is one or more of a defoaming agent, a wetting dispersant, a rheological auxiliary agent and an adhesion promoter; the curing agent is a phenolic aldehyde amine curing agent.
8. The storage tank inner wall environment-friendly high-solid-content heavy-duty anticorrosive paint according to claim 7, characterized in that: the phenolic aldehyde amine curing agent is one or more of aliphatic phenolic aldehyde amine curing agent, alicyclic phenolic aldehyde amine curing agent, aromatic phenolic aldehyde amine curing agent and polyether amine modified phenolic aldehyde amine curing agent.
9. The preparation method of the environment-friendly high-solid-content heavy-duty anticorrosive coating for the inner wall of the storage tank, according to claim 6, is characterized by comprising the following steps:
1) the preparation process of the component A comprises the following steps: uniformly dispersing the epoxy resin in the solvent A according to the proportion, adding the antirust filler, the inorganic filler and the auxiliary agent in the dispersing process, grinding for 40-50min, filtering, adding the modified flake pulp into the collected milk pulp, and dispersing for 10-20min to obtain a component A;
2) the preparation process of the component B comprises the following steps: dispersing polyamine curing agent in solvent B for 10-15min to obtain component B;
3) anticorrosive paint: when in use, the component A and the component B are composed according to the mass part ratio of 4-20: 1.
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