CN110724433B - Antifouling weather-resistant protective coating for reaction kettle equipment and preparation method thereof - Google Patents
Antifouling weather-resistant protective coating for reaction kettle equipment and preparation method thereof Download PDFInfo
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- CN110724433B CN110724433B CN201910977467.4A CN201910977467A CN110724433B CN 110724433 B CN110724433 B CN 110724433B CN 201910977467 A CN201910977467 A CN 201910977467A CN 110724433 B CN110724433 B CN 110724433B
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- percent
- primer
- reaction kettle
- resin
- stirring
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 39
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011253 protective coating Substances 0.000 title claims description 25
- 239000003973 paint Substances 0.000 claims abstract description 59
- 238000000576 coating method Methods 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- 239000012046 mixed solvent Substances 0.000 claims abstract description 40
- -1 polypropylene Polymers 0.000 claims abstract description 38
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 32
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 21
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 21
- 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 19
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000004417 polycarbonate Substances 0.000 claims abstract description 19
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 239000004743 Polypropylene Substances 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920001155 polypropylene Polymers 0.000 claims abstract description 17
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 16
- 239000012948 isocyanate Substances 0.000 claims abstract description 16
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 16
- 239000010445 mica Substances 0.000 claims abstract description 16
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 16
- 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 abstract description 16
- 229910000165 zinc phosphate Inorganic materials 0.000 claims abstract description 16
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 15
- 239000013556 antirust agent Substances 0.000 claims abstract description 15
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims abstract description 15
- 239000004593 Epoxy Substances 0.000 claims abstract description 14
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 13
- 229960000892 attapulgite Drugs 0.000 claims abstract description 13
- 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 abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 13
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 12
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 12
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 12
- 239000008116 calcium stearate Substances 0.000 claims abstract description 12
- 239000012461 cellulose resin Substances 0.000 claims abstract description 12
- 229920000768 polyamine Polymers 0.000 claims abstract description 12
- 150000001412 amines Chemical class 0.000 claims abstract description 11
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 48
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical group CCOC(C)=O XEKOWRVHYACXOJ-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
- 241000208227 Toxicodendron vernicifluum Species 0.000 claims description 7
- 230000003449 preventive effect Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 claims description 4
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- MMUFAGXJPKNAHT-UHFFFAOYSA-N copper;quinolin-8-ol Chemical compound [Cu].C1=CN=C2C(O)=CC=CC2=C1 MMUFAGXJPKNAHT-UHFFFAOYSA-N 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 150000003376 silicon Chemical class 0.000 claims description 2
- 239000011775 sodium fluoride Substances 0.000 claims description 2
- 235000013024 sodium fluoride Nutrition 0.000 claims description 2
- XEOXZSREIVIEIP-UHFFFAOYSA-N trizinc [butyl(octyl)-lambda4-sulfanylidene]-dioxido-sulfido-lambda5-phosphane Chemical group C(CCC)S(=P([S-])([O-])[O-])CCCCCCCC.[Zn+2].C(CCC)S(=P([S-])([O-])[O-])CCCCCCCC.[Zn+2].[Zn+2] XEOXZSREIVIEIP-UHFFFAOYSA-N 0.000 claims description 2
- YIRRTBMIVUEJBM-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCC)[Ba]CCCCCCCCC Chemical compound C1(=CC=CC2=CC=CC=C12)S(=O)(=O)O.C(CCCCCCCC)[Ba]CCCCCCCCC YIRRTBMIVUEJBM-UHFFFAOYSA-N 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- 239000000853 adhesive Substances 0.000 abstract description 9
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 14
- 238000005507 spraying Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- OMRZUNKNTXPTRJ-UHFFFAOYSA-N oxygen(2-) titanium(4+) hydrofluoride Chemical compound F.[O-2].[O-2].[Ti+4] OMRZUNKNTXPTRJ-UHFFFAOYSA-N 0.000 description 8
- 238000009472 formulation Methods 0.000 description 7
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000013557 residual solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RAADJDWNEAXLBL-UHFFFAOYSA-N 1,2-di(nonyl)naphthalene Chemical compound C1=CC=CC2=C(CCCCCCCCC)C(CCCCCCCCC)=CC=C21 RAADJDWNEAXLBL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010998 test method Methods 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
- C09D123/28—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
-
- 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
- C09D169/00—Coating compositions based on polycarbonates; Coating compositions based on derivatives of polycarbonates
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
-
- 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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of paint preparation, and relates to an antifouling weather-resistant paint for reaction kettle equipment, which consists of a primer, a middle paint and a finish, wherein the primer is 30-50% of bisphenol A epoxy resin, 12-20% of melamine formaldehyde resin, 5-8% of a filler, 10-15% of fatty amine, 2-5% of a mildew inhibitor, 1-5% of an antirust agent, 1-3% of a flatting agent and a solvent; the intermediate coat is prepared from 40-50% of epoxy grafted chlorinated polypropylene resin, 1-3% of cellulose resin, 2-10% of attapulgite, 2-8% of talcum powder, 3-10% of kaolin, 2-6% of calcium stearate, 2-5% of silane coupling agent, 4-8% of aliphatic polyamine and mixed solvent; the finish paint is composed of 30-40% of acrylic acid modified polycarbonate, 15-20% of polytetrafluoroethylene resin, 2-6% of titanium fluoride, 5-10% of flake aluminum powder, 2-5% of zinc phosphate, 5-8% of mica powder, 5-8% of calcium carbonate, 4-8% of isocyanate, 2-4% of antioxidant, 1-3% of defoaming agent and mixed solvent. The coating meets the protection requirement of the reaction kettle equipment through coating matching and component blending, excellent weather resistance and antifouling property are realized, the adhesive force performance is excellent, and the service life of the reaction kettle equipment is prolonged.
Description
Technical Field
The invention belongs to the technical field of paint preparation, relates to an antifouling weather-resistant protective paint, and particularly relates to an antifouling weather-resistant paint for reaction kettle equipment and a preparation method thereof.
Background
With the development of industrial technology, the traditional preparation process gradually develops to automatic equipment and unmanned operation, and the reaction kettle equipment becomes a main production equipment instrument in most manufacturing industries. Influenced by the working environment, particularly a fine processing chemical workshop needs to be kept clean and has long service life, the reaction kettle equipment needs to overcome the influences of color change, falling, cracks, stains, poor adhesive force and the like, and part of outdoor reaction equipment is influenced by natural environments such as wind, sunshine, rain, sand and dust and the like and has stricter protection requirements.
It is currently common practice in the industry to achieve excellent equipment protection requirements of weather resistance, fouling resistance, etc. by applying a coating on the exterior of the equipment. In the prior art, weather-proof and antifouling performances cannot meet the protection requirements of reaction kettle equipment, some antifouling, weather-proof and acid and alkali-resistant finishing paints cannot form lasting protective coatings with strong adhesive force on the surfaces of reaction kettles, and the existing products sold in the market are matched by selecting the primer, the intermediate coat and the finishing paints of different products according to requirements, so that no complete antifouling and weather-resistant set of coating paint meets the equipment requirements of the reaction kettles.
Disclosure of Invention
In order to solve the problems in the prior art, the invention discloses an antifouling weather-resistant protective coating for reaction kettle equipment, which meets the protection requirement of the reaction kettle equipment through coating matching and component blending, realizes excellent weather resistance and antifouling property and adhesion property, and prolongs the service life of the reaction kettle equipment.
The invention is realized by the following technical scheme:
an antifouling weather-resistant protective coating special for reaction kettle equipment, which consists of a primer, a middle paint and a finish paint, wherein,
the primer comprises the following raw materials in percentage by mass:
30 to 50 percent of bisphenol A epoxy resin,
12 to 20 percent of melamine formaldehyde resin,
5 to 8 percent of filler,
10-15% of fatty amine,
2-5% of mildew preventive,
1 to 5 percent of antirust agent,
1 to 3 percent of flatting agent,
the balance of solvent;
the filler is one or more of titanium dioxide, quartz sand and wollastonite powder,
the mildew preventive is one or more of 8-hydroxyquinoline copper, phenol, copper sulfate, pentachlorophenol and sodium fluoride,
the antirust agent is one of calcium petroleum sulfonate, barium petroleum sulfonate and alkaline dinonyl naphthalene sulfonate,
the flatting agent is one or more of butyl cellulose, isophorone, organic silicon and fluorocarbon,
the solvent is one or more of esters, toluene and butanone, and ethyl acetate is preferred;
the Chinese lacquer comprises the following raw materials in percentage by mass:
40-50% of epoxy grafted chlorinated polypropylene resin,
1 to 3 percent of cellulose resin,
2 to 10 percent of attapulgite,
2-8% of talcum powder,
3 to 10 percent of kaolin,
2 to 6 percent of calcium stearate,
2-5% of silane coupling agent,
4 to 8 percent of aliphatic polyamine,
the balance of the mixed solvent;
the finishing paint comprises the following raw materials in percentage by mass:
30-40% of acrylic acid modified polycarbonate,
15 to 20 percent of polytetrafluoroethylene resin,
2 to 6 percent of fluorinated titanium dioxide,
5 to 10 percent of flake aluminum powder,
2 to 5 percent of zinc phosphate,
5 to 8 percent of mica powder,
5 to 8 percent of calcium carbonate,
4 to 8 percent of isocyanate,
2 to 4 percent of antioxidant,
1 to 3 percent of defoaming agent,
the balance of the mixed solvent;
the antioxidant is zinc butyl octyl dithiophosphate,
the defoaming agent is one or more of an organic silicon defoaming agent, polyether and polyether modified silicon.
In the better disclosure example of the invention, the mixed solvent of the intermediate paint is the same as that of the primer paint, and the components of the intermediate paint are calculated by mass ratio, toluene: ethyl acetate was 2: 8.
The primer disclosed by the invention takes bisphenol A epoxy resin and melamine formaldehyde resin as main film forming substances, and has excellent adhesion to a reaction kettle equipment substrate; the paint film is compact, the weather resistance is excellent, and the mildew-proof and rust-proof performance is excellent, so that the middle paint and finish paint still play a role in protecting the coating when the coating is cracked; the fillers added in the coating are selected from titanium dioxide, quartz sand and wollastonite powder, so that the coating has a certain covering power and improved thick coating property.
The epoxy grafted chlorinated polypropylene resin is used as a main film forming substance in the intermediate paint disclosed by the invention, the intermediate paint has the advantages of epoxy resin and chlorinated polypropylene resin, the coating has excellent water resistance, acid and alkali resistance and corrosion resistance, the chlorinated polypropylene resin is modified by the epoxy resin, so that the intermediate paint coating and the epoxy resin primer have better coating adaptability, when the content of fatty amine in the primer is 10-15%, the adhesive property between the coatings is improved by the action of a curing agent in the primer, the adhesive property of the coating is enhanced, and meanwhile, the solubility and the construction dryness are ensured by using the dosage ratio of ethyl acetate and toluene.
In order to solve the problem that the weather resistance and the antifouling property of the protective finish paint of the reaction kettle are not ideal, the invention selects the acrylic acid modified polycarbonate and the polytetrafluoroethylene resin to compound as the main film forming composition of the finish paint, and the formed film has excellent weather resistance and antifouling property; excellent adhesive force performance and good water resistance. The filler is selected to further improve the weather resistance and the antirust performance of the coating, and the covering performance is improved by matching the filler attapulgite, the talcum powder and the kaolin in the flake aluminum powder and the Chinese paint, so that the coating is coated by three layers to form a coating film with excellent compactness, and the protection effect is enhanced.
Based on the total mass of the finish, the content of the acrylic acid modified polycarbonate resin is 30-40%; the resin has excellent weather resistance within the range, simultaneously, the antifouling property meets the protection requirement of equipment, the addition of the acrylic modified polycarbonate resin with the content higher than the range has the influence on the paint leveling property, the film forming quality is poor, the coating adhesion is influenced, and the coating with the content lower than the range has the defects of poor antifouling property and weather resistance; through experimental detection, the content of the polytetrafluoroethylene resin is 15-20%, and the weather resistance and the antifouling property of the coating in the range are optimal.
By selecting the epoxy resin primer and the epoxy grafted chlorinated polypropylene resin intermediate coat to be matched with the finish coat, the problem of poor adhesion of the finish coat is solved, the protective effect of the coating is improved, and the service life of equipment is prolonged.
The invention also aims to disclose a preparation method of the antifouling weather-proof protective coating.
The preparation method of the special antifouling weather-resistant protective coating for the reaction kettle equipment comprises the following steps:
(1) preparing a primer: adding 30-50% of bisphenol A epoxy resin and 12-20% of melamine formaldehyde resin into two thirds of a solvent, heating to 70-90 ℃, uniformly stirring at 1000-2000 r/min, then sequentially adding 5-8% of a filler, 2-5% of a mildew inhibitor, 1-5% of an antirust agent and 1-3% of a flatting agent, stirring at 500-1500 r/min for 30min, finally adding the rest of the solvent and 10-15% of fatty amine, continuously stirring for 1h, and filtering to obtain a primer;
(2) preparing a Chinese lacquer: adding 2-10% of attapulgite, 2-8% of talcum powder, 3-10% of kaolin and 2-6% of calcium stearate into one third of a mixed solvent, stirring for 1 hour at 500-1000 r/min, then adding 40-50% of epoxy grafted chlorinated polypropylene resin and 1-3% of cellulose resin, stirring for 1 hour at 1000-2000 r/min, and continuously adding 2-5% of silane coupling agent, 4-8% of aliphatic polyamine and the rest of the mixed solvent to obtain a middle paint;
(3) preparing finish paint: sequentially adding 5-10% of flake aluminum powder, 2-5% of zinc phosphate, 5-8% of mica powder and 5-8% of calcium carbonate into half of the mixed solvent, stirring for 1h at 500-1000 r/min, adding 2-4% of antioxidant and 1-3% of defoamer, continuously stirring, raising the temperature to 60-70 ℃, preferably 65 ℃, adding 15-20% of polytetrafluoroethylene resin and 2-6% of fluorinated titanium dioxide, stirring for 0.5h at 500-1000 r/min, adding 30-40% of acrylic acid modified polycarbonate, continuously stirring for 0.5h, adding 4-8% of isocyanate and the rest of the mixed solvent, and uniformly stirring to obtain the finish paint.
The better coating quality of the coating is realized by adjusting the adding sequence of the reasonable process components, and when the finish is prepared, the polytetrafluoroethylene resin and the fluorinated titanium dioxide are added and stirred together after the filler is uniformly stirred, so that better stain resistance of the coating is realized unexpectedly.
When the primer is applied to a reaction kettle, the prepared primer is sprayed on a fragment (metal material) substrate of the reaction kettle, then the primer is sprayed, a layer of finish paint is sprayed after the primer is cured, and a protective coating with three layers of coating films is formed after drying and curing.
Advantageous effects
The protective coating special for the reaction kettle equipment is provided by reasonably matching and using the primer, the intermediate coat and the finish coat, the weather resistance, the mildew resistance and the rust resistance of the coating are improved by matching and using the bisphenol A epoxy resin and the melamine formaldehyde resin in the primer, the good adhesive force of the coating is realized by adjusting the content of the curing agent in the primer and matching the modified resin of the intermediate coat, the protection of the primer is further enhanced by selecting a coating film realized by epoxy grafted chlorinated polypropylene resin in the intermediate coat, and the protective strength of the coating is improved; the coating with good anti-fouling, weather-resistant and adhesive force performances is obtained through the use and content design of the special resin acrylic modified polycarbonate and the polytetrafluoroethylene resin of the finish paint, the selection of proper raw materials and proportion and the design concept among coating films.
Detailed Description
The present invention will be described in detail below with reference to examples to enable those skilled in the art to better understand the present invention, but the present invention is not limited to the following examples.
Example 1
The special antifouling weather-resistant protective coating for the reaction kettle equipment comprises a primer, a middle paint and a finish paint, wherein the primer is composed of the following components in parts by weight:
the primer formula comprises:
50% of bisphenol A epoxy resin, 20% of melamine formaldehyde resin, 5% of filler, 15% of aliphatic amine, 2% of mildew inhibitor, 2% of antirust agent, 1% of flatting agent and 5% of solvent;
preparing a primer: adding bisphenol A epoxy resin and melamine formaldehyde resin into two thirds of a solvent, and raising the temperature to 70-90 ℃; stirring at 1000-2000 rpm, then adding the filler, the mildew preventive, the antirust agent and the flatting agent in sequence, stirring for 30min at 500-1500 rpm, finally adding the residual solvent and the fatty amine, continuously stirring for 1h, and filtering to obtain the primer.
The formula of the Chinese paint comprises:
epoxy grafted chlorinated polypropylene resin: 50 percent of cellulose resin, 3 percent of attapulgite, 8 percent of talcum powder, 10 percent of kaolin, 2 percent of calcium stearate, 2 percent of silane coupling agent, 8 percent of aliphatic polyamine and 15 percent of mixed solvent;
preparing a Chinese lacquer: adding attapulgite, talcum powder, kaolin and calcium stearate into one third of the mixed solvent, stirring for 1h at 500-1000 rpm, then adding epoxy grafted chlorinated polypropylene resin and cellulose resin, stirring for 1h at 1000-2000 rpm, and continuously adding a silane coupling agent, aliphatic polyamine and the rest of the mixed solvent to obtain the intermediate paint.
The formula of the finish paint is as follows:
40% of acrylic acid modified polycarbonate, 20% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 7% of mixed solvent;
preparing finish paint: adding flaky aluminum powder, zinc phosphate, mica powder and calcium carbonate into a container in sequence, adding half of mixed solvent, stirring for 1h at 500-1000 r/min, adding an antioxidant and a defoaming agent, continuing stirring, raising the temperature, adding polytetrafluoroethylene resin and titanium fluoride, stirring for 0.5h at 500-1000 r/min, adding acrylic acid modified polycarbonate, continuing stirring for 0.5h, adding isocyanate, and adding the rest solvent to obtain the finish paint.
And spraying the prepared primer on a reaction kettle fragment substrate, spraying the primer, spraying a layer of finish after curing, and drying and curing to form a protective coating with three layers of coating films.
Example 2
The special antifouling weather-resistant protective coating for the reaction kettle equipment comprises a primer, a middle paint and a finish paint, wherein the primer is composed of the following components in parts by weight:
the primer formula comprises:
40% of bisphenol A epoxy resin, 12% of melamine formaldehyde resin, 5% of filler, 10% of aliphatic amine, 2% of mildew inhibitor, 2% of antirust agent, 1% of flatting agent and 28% of solvent;
preparing a primer: adding bisphenol A epoxy resin and melamine formaldehyde resin into two thirds of mixed solvent, and raising the temperature to 70-90 ℃; stirring at 1000-2000 rpm, then adding the filler, the mildew preventive, the antirust agent and the flatting agent in sequence, stirring for 30min at 500-1500 rpm, finally adding the residual solvent and the fatty amine, continuously stirring for 1h, and filtering to obtain the primer.
The formula of the Chinese paint comprises:
epoxy grafted chlorinated polypropylene resin: 40 percent of cellulose resin, 3 percent of attapulgite, 8 percent of talcum powder, 10 percent of kaolin, 2 percent of calcium stearate, 2 percent of silane coupling agent, 8 percent of aliphatic polyamine and 25 percent of mixed solvent;
preparing a Chinese lacquer: adding attapulgite, talcum powder, kaolin and calcium stearate into one third of the mixed solvent, stirring for 1h at 500-1000 rpm, then adding epoxy grafted chlorinated polypropylene resin and cellulose resin, stirring for 1h at 1000-2000 rpm, and continuously adding a silane coupling agent, aliphatic polyamine and the rest of the mixed solvent to obtain the intermediate paint.
The formula of the finish paint is as follows:
30% of acrylic acid modified polycarbonate, 15% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 22% of mixed solvent;
preparing finish paint: adding flaky aluminum powder, zinc phosphate, mica powder and calcium carbonate into a container in sequence, adding half of mixed solvent, stirring for 1h at 500-1000 r/min, adding an antioxidant and a defoaming agent, continuously stirring, raising the temperature, adding polytetrafluoroethylene resin and titanium fluoride, stirring for 0.5h at 500-1000 r/min, adding acrylic acid modified polycarbonate, continuously stirring for 0.5h, adding isocyanate and the rest of solvent to obtain the finish paint.
And spraying the prepared primer on a reaction kettle fragment substrate, spraying the primer, spraying a layer of finish after curing, and drying and curing to form a protective coating with three layers of coating films.
In the initial stage of development, in order to meet the production requirements, different components are blended and the proportion is improved so as to obtain the best protective coating formula.
Comparative example 1
The preparation process is identical to example 1, with the difference that the following primer formulation is used: 50% of bisphenol A epoxy resin, 20% of melamine formaldehyde resin, 5% of filler, 5% of aliphatic amine, 2% of mildew inhibitor, 2% of antirust agent, 1% of flatting agent and 15% of mixed solvent.
Comparative example 2
The preparation process is identical to example 1, with the difference that the following primer formulation is used: 50% of bisphenol A epoxy resin, 20% of melamine formaldehyde resin, 5% of filler, 17% of aliphatic amine, 2% of mildew inhibitor, 2% of antirust agent, 1% of flatting agent and 3% of mixed solvent.
Comparative example 3
The preparation process is identical to example 1, with the difference that the following intermediate paint formulation is used: chlorinated polypropylene resin: 50 percent of cellulose resin, 3 percent of attapulgite, 8 percent of talcum powder, 10 percent of kaolin, 2 percent of calcium stearate, 2 percent of silane coupling agent, 8 percent of aliphatic polyamine and 15 percent of mixed solvent.
Comparative example 4
The special antifouling weather-resistant protective coating for the reaction kettle equipment comprises a primer, a middle paint and a finish paint, wherein the primer is composed of the following components in parts by weight:
the primer formula comprises:
50% of bisphenol A epoxy resin, 20% of melamine formaldehyde resin, 5% of filler, 15% of aliphatic amine, 2% of mildew inhibitor, 2% of antirust agent, 1% of flatting agent and 5% of solvent;
preparing a primer: adding bisphenol A epoxy resin and melamine formaldehyde resin into two thirds of a solvent, and raising the temperature to 70-90 ℃; stirring at 1000-2000 rpm, then adding the filler, the mildew preventive, the antirust agent and the flatting agent in sequence, stirring for 30min at 500-1500 rpm, finally adding the residual solvent and the fatty amine, continuing stirring for 1h, and filtering to obtain the primer;
the formula of the Chinese paint comprises:
epoxy grafted chlorinated polypropylene resin: 50 percent of cellulose resin, 3 percent of attapulgite, 8 percent of talcum powder, 10 percent of kaolin, 2 percent of calcium stearate, 2 percent of silane coupling agent, 8 percent of aliphatic polyamine and 15 percent of mixed solvent;
preparing a Chinese lacquer: adding attapulgite, talcum powder, kaolin and calcium stearate into one third of the mixed solvent, stirring for 1h at 500-1000 rpm, then adding epoxy grafted chlorinated polypropylene resin and cellulose resin, stirring for 1h at 1000-2000 rpm, and continuously adding a silane coupling agent, aliphatic polyamine and the rest of the mixed solvent to obtain the intermediate paint.
The formula of the finish paint is as follows:
60% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 7% of mixed solvent;
preparing finish paint: adding flaky aluminum powder, zinc phosphate, mica powder and calcium carbonate into a container in sequence, adding half of mixed solvent, stirring for 1h at 500-1000 r/min, adding an antioxidant and a defoaming agent, continuously stirring, raising the temperature, adding polytetrafluoroethylene resin and titanium fluoride, stirring for 0.5h at 500-1000 r/min, adding acrylic acid modified polycarbonate, continuously stirring for 0.5h, adding isocyanate and the rest of solvent to obtain the finish paint.
And spraying the prepared primer on a reaction kettle fragment substrate, spraying the primer, spraying a layer of finish after curing, and drying and curing to form a protective coating with three layers of coating films.
Comparative example 5
The preparation process is the same as that of comparative example 4, and the difference is that the following finish formula is adopted: 60% of acrylic acid modified polycarbonate, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 7% of mixed solvent.
Comparative example 6
The preparation process is the same as in example 1, except that the following finish formulation is used: 25% of acrylic acid modified polycarbonate, 20% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 22% of mixed solvent.
Comparative example 7
The preparation process is the same as in example 1, except that the following finish formulation is used: 42% of acrylic acid modified polycarbonate, 20% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 5% of mixed solvent.
Comparative example 8
The preparation process is the same as in example 1, except that the following finish formulation is used: 40% of acrylic acid modified polycarbonate, 16% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 11% of mixed solvent.
Comparative example 9
The preparation process is the same as in example 1, except that the following finish formulation is used: 40% of acrylic acid modified polycarbonate, 22% of polytetrafluoroethylene resin, 2% of titanium dioxide fluoride, 5% of flake aluminum powder, 5% of zinc phosphate, 5% of mica powder, 5% of calcium carbonate, 8% of isocyanate, 2% of antioxidant, 1% of defoaming agent and 5% of mixed solvent.
The antifouling and weather-resistant paint for the reaction kettle equipment prepared in the above examples and comparative examples is cured into a film in a way that the primer, the intermediate coat and the finish coat are cured layer by layer, and in order to meet the process requirements, the performance test is carried out by the following test methods:
TABLE 1
Referring to table 1, the coating with excellent weather resistance, antifouling property and adhesive force performance is obtained by the design of the components and the proportion of the content of the components, and can be smoothly sprayed and play a role in protecting the surface of the reaction kettle. As can be seen from example 1 and comparative examples 1 and 2, too low a content of the fatty amine affects the coating adhesion, and too high a content of the fatty amine decreases the stain resistance of the coating; in the comparative example 4, no acrylic acid modified polycarbonate is added, and the stain resistance, the weather resistance and the adhesive force of the coating are obviously reduced; when no polytetrafluoroethylene resin is added, the stain resistance and the weather resistance are reduced, and if the two resins are added as main agents to form a coating, the coating with excellent performances is obtained; from the embodiment 1 and the comparative examples 6 to 9, the coating prepared from the acrylic acid modified polycarbonate and the polytetrafluoroethylene resin in a certain content range has high weather resistance, stain resistance and adhesive force, and meets the requirements of practical application.
The foregoing detailed description, with reference to the embodiments, is intended to be illustrative rather than limiting, and that all changes and modifications that come within the spirit of the invention are desired to be protected.
Claims (9)
1. An antifouling weather-resistant protective coating special for reaction kettle equipment, which consists of a primer, a middle paint and a finish paint and is characterized in that,
the primer comprises the following raw materials in percentage by mass:
30 to 50 percent of bisphenol A epoxy resin,
12 to 20 percent of melamine formaldehyde resin,
5 to 8 percent of filler,
10-15% of fatty amine,
2-5% of mildew preventive,
1 to 5 percent of antirust agent,
1 to 3 percent of flatting agent,
the balance of solvent;
the solvent is one or more of esters, toluene and butanone;
the Chinese lacquer comprises the following raw materials in percentage by mass:
40-50% of epoxy grafted chlorinated polypropylene resin,
1 to 3 percent of cellulose resin,
2 to 10 percent of attapulgite,
2-8% of talcum powder,
3 to 10 percent of kaolin,
2 to 6 percent of calcium stearate,
2-5% of silane coupling agent,
4 to 8 percent of aliphatic polyamine,
the balance of the mixed solvent;
the finishing paint comprises the following raw materials in percentage by mass:
30-40% of acrylic acid modified polycarbonate,
15 to 20 percent of polytetrafluoroethylene resin,
2 to 6 percent of fluorinated titanium dioxide,
5 to 10 percent of flake aluminum powder,
2 to 5 percent of zinc phosphate,
5 to 8 percent of mica powder,
5 to 8 percent of calcium carbonate,
4 to 8 percent of isocyanate,
2 to 4 percent of antioxidant,
1 to 3 percent of defoaming agent,
the balance of the mixed solvent;
the antioxidant is zinc butyl octyl dithiophosphate,
the defoaming agent is one or more of an organic silicon defoaming agent, polyether and polyether modified silicon.
2. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: the solvent in the primer is ethyl acetate.
3. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: in the primer, the filler is one or more of titanium dioxide, quartz sand and wollastonite powder.
4. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: in the primer, the mildew preventive is one or more of 8-hydroxyquinoline copper, phenol, copper sulfate, pentachlorophenol and sodium fluoride.
5. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: in the primer, the antirust agent is one of calcium petroleum sulfonate, barium petroleum sulfonate and alkaline dinonyl barium naphthalene sulfonate.
6. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: in the primer, the flatting agent is one or more of butyl cellulose, isophorone, organic silicon and fluorocarbon.
7. The special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 1, which is characterized in that: the mixed solvent of the intermediate coating is the same as that of the primer, and the components of the intermediate coating are calculated by mass ratio, toluene: ethyl acetate was 2: 8.
8. The method for preparing the antifouling weather-proof protective coating special for the reaction kettle equipment as described in any one of the above claims 1 to 7, which is characterized by comprising the following steps:
(1) preparing a primer: adding 30-50% of bisphenol A epoxy resin and 12-20% of melamine formaldehyde resin into two thirds of a solvent, heating to 70-90 ℃, uniformly stirring at 1000-2000 r/min, then sequentially adding 5-8% of a filler, 2-5% of a mildew inhibitor, 1-5% of an antirust agent and 1-3% of a flatting agent, stirring at 500-1500 r/min for 30min, finally adding the rest of the solvent and 10-15% of fatty amine, continuously stirring for 1h, and filtering to obtain a primer;
(2) preparing a Chinese lacquer: adding 2-10% of attapulgite, 2-8% of talcum powder, 3-10% of kaolin and 2-6% of calcium stearate into one third of a mixed solvent, stirring for 1 hour at 500-1000 r/min, then adding 40-50% of epoxy grafted chlorinated polypropylene resin and 1-3% of cellulose resin, stirring for 1 hour at 1000-2000 r/min, and continuously adding 2-5% of silane coupling agent, 4-8% of aliphatic polyamine and the rest of the mixed solvent to obtain a middle paint;
(3) preparing finish paint: sequentially adding 5-10% of flake aluminum powder, 2-5% of zinc phosphate, 5-8% of mica powder and 5-8% of calcium carbonate into half of a mixed solvent, stirring for 1h at 500-1000 r/min, adding 2-4% of antioxidant and 1-3% of defoamer, continuously stirring, raising the temperature to 60-70 ℃, adding 15-20% of polytetrafluoroethylene resin and 2-6% of fluorinated titanium dioxide, stirring for 0.5h at 500-1000 r/min, adding 30-40% of acrylic acid modified polycarbonate, continuously stirring for 0.5h, adding 4-8% of isocyanate, and uniformly stirring the rest of the mixed solvent to obtain the finish paint.
9. The preparation method of the special antifouling weather-resistant protective coating for the reaction kettle equipment as claimed in claim 8, wherein the preparation method comprises the following steps: adding 2-4% of antioxidant and 1-3% of defoaming agent in the step (3), continuously stirring, and raising the temperature to 65 ℃.
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