CN116410641A - Environment-friendly water-based high-performance crack decorative paint and preparation method thereof - Google Patents
Environment-friendly water-based high-performance crack decorative paint and preparation method thereof Download PDFInfo
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- CN116410641A CN116410641A CN202310349502.4A CN202310349502A CN116410641A CN 116410641 A CN116410641 A CN 116410641A CN 202310349502 A CN202310349502 A CN 202310349502A CN 116410641 A CN116410641 A CN 116410641A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 239000003973 paint Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 62
- 238000004132 cross linking Methods 0.000 claims abstract description 61
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 56
- 239000002562 thickening agent Substances 0.000 claims abstract description 32
- 229920001577 copolymer Polymers 0.000 claims abstract description 31
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 20
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 20
- 239000013530 defoamer Substances 0.000 claims abstract description 19
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 12
- 230000002265 prevention Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 79
- 239000007788 liquid Substances 0.000 claims description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 24
- 229920000058 polyacrylate Polymers 0.000 claims description 17
- 230000003678 scratch resistant effect Effects 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 13
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- -1 polysiloxane Polymers 0.000 claims description 10
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 6
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 6
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 6
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 6
- 229960002887 deanol Drugs 0.000 claims description 6
- 239000012972 dimethylethanolamine Substances 0.000 claims description 6
- 239000003995 emulsifying agent Substances 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- 239000003755 preservative agent Substances 0.000 claims description 6
- 230000002335 preservative effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/18—Homopolymers or copolymers of nitriles
- C09D133/20—Homopolymers or copolymers of acrylonitrile
-
- 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
- C09D5/002—Priming 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
- C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
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- 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
- C09D7/20—Diluents or solvents
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- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
- C09D7/65—Additives macromolecular
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- 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
- C09D7/80—Processes for incorporating ingredients
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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)
- Paints Or Removers (AREA)
Abstract
The environment-friendly water-based high-performance crack decorative paint belongs to the field of water-based crack decorative paint, and comprises a primer and a finish paint, wherein the primer comprises, by weight, 40-55 parts of water-based self-crosslinking elastic acrylic acid polymer, 25-35 parts of water, 0.15-0.4 part of defoamer, 0.3-0.8 part of Ph regulator, 1.5-2.0 parts of anti-flash rust auxiliary agent, 0.8-1.3 parts of thickener, 0.8-1.5 parts of adhesion promoter, 5-15 parts of color paste and 0.9-2.5 parts of antifreezing agent; the finishing paint comprises, by weight, 55-65 parts of a water-based self-crosslinking acrylate copolymer, 15-20 parts of water, 0.05-0.15 part of a defoaming agent, 0.5-0.9 part of a Ph regulator, 0.5-1.5 parts of a flash rust prevention auxiliary agent, 0.5-1.0 part of a thickening agent, 1.3-2.2 parts of a scratch resistance auxiliary agent, 8-15 parts of color paste, 0.5-0.8 part of an antifreezing agent, 0.5-1.0 part of a hand feeling wear-resistant agent and 3.0-4.5 parts of a film forming auxiliary agent. The prepared crack decorative paint has good adhesion between the primer and the finish paint, has excellent effects on the aspects of wear resistance, scratch resistance and the like of a paint film, and also meets the HG/T4758-2014 standard of the paint.
Description
Technical Field
The invention belongs to the field of water-based crack decorative paint, and particularly relates to environment-friendly water-based high-performance crack decorative paint and a preparation method thereof.
Background
Along with the popularization and gradual maturity of the water-based paint, the demands of people are also increasingly abundant, and in recent years, the crack paint has more and more attention because of the unique style and decorative effect, and the crack paint can form beautiful cracks on the surface of an object, thereby not only playing roles in protecting and decorating the surface of the object, but also improving the added value of the product.
However, the existing crackle paint has the problems of poor adhesion between the primer and the finish paint and falling of the paint surface after cracking, so that the stereoscopic aesthetic feeling of the crackle paint is damaged, the integral decorative effect is even damaged, the quality problem is caused, and in addition, the existing crackle paint has poor wear resistance, scratch resistance and other performances.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides the environment-friendly water-based high-performance crack decorative paint, which has good adhesion between a primer and a finish paint, solves the problem that the paint surface falls off after cracks are cracked, and has good wear resistance, scratch resistance and other performances.
The invention adopts the specific technical scheme that:
the environment-friendly water-based high-performance crack decorative paint comprises a primer and a finish paint, wherein the primer comprises, by weight, 40-55 parts of water-based self-crosslinking elastic acrylic polymer, 25-35 parts of water, 0.15-0.4 part of defoamer, 0.3-0.8 part of Ph regulator, 1.5-2.0 parts of anti-flash rust auxiliary agent, 0.8-1.3 parts of thickener, 0.8-1.5 parts of adhesion promoter, 5-15 parts of color paste and 0.9-2.5 parts of antifreezing agent;
the finishing paint comprises, by weight, 55-65 parts of a water-based self-crosslinking acrylate copolymer, 15-20 parts of water, 0.05-0.15 part of a defoaming agent, 0.5-0.9 part of a Ph regulator, 0.5-1.5 parts of a flash rust prevention auxiliary agent, 0.5-1.0 part of a thickening agent, 1.3-2.2 parts of a scratch resistance auxiliary agent, 8-15 parts of color paste, 0.5-0.8 part of an antifreezing agent, 0.5-1.0 part of a hand feeling wear-resistant agent and 3.0-4.5 parts of a film forming auxiliary agent.
Further, the preparation method of the aqueous self-crosslinking elastic acrylic polymer comprises the following steps:
a1: uniformly mixing 15-30 parts of methyl methacrylate, 20-35 parts of butyl acrylate, 0.03-0.05 part of sodium dodecyl sulfate, 0.05-0.07 part of fatty alcohol polyoxyethylene ether and 10-15 parts of water to obtain a dispersion liquid;
a2: taking 12-20 parts of water, uniformly mixing with 0.03-0.06 part of dimethylethanolamine, heating to 80-90 ℃, adding 0.01-0.03 part of dispersion liquid and azodiisobutyronitrile, and reacting to obtain seed liquid;
a3: sequentially adding 5-10 parts of water, 0.01-0.05 part of azodiisobutyronitrile, 0.1-1 part of acrylonitrile and 0.05-0.1 part of silane coupling agent into the seed liquid, preserving heat for 60-100min under stirring, then adding a PH regulator to adjust PH to 7-8, then adding 0.02-0.05 part of defoamer and 0.02-0.05 part of preservative, and uniformly stirring to obtain the water-based self-crosslinking elastic acrylic acid polymer.
Further, the preparation method of the aqueous self-crosslinking acrylate copolymer comprises the following steps:
b1: adding 15-20 parts of water and 0.1-0.2 part of emulsifier into a container, uniformly stirring, heating to 75-90 ℃, then sequentially dripping 15-25 parts of styrene monomer, 20-35 parts of methyl methacrylate, 10-15 parts of ethyl acrylate, 0.1-0.15 part of allyl polyoxyalkyl epoxy ether and 0.01-0.05 part of initiator, controlling the dripping time to 2-3h, preserving heat for 1-2h, then adding 0.02-0.05 part of defoamer, regulating the PH to 7-8 by using a PH regulator, and filtering to obtain the water-based self-crosslinking acrylate copolymer.
Further, the hand wear resistant agent comprises a modified ultra-high molecular weight polysiloxane emulsion.
Further, the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol, and the ratio of the propylene glycol to the ethylene glycol is 2-3:1.
Further, the scratch-resistant auxiliary agent contains polyether modified silicone oil solution.
Further, the thickener is a nonionic polyurethane associative thickener.
Further, the film forming aid comprises one or more of alcohol ester twelve, diethylene glycol butyl ether and ethylene glycol butyl ether.
The preparation method of the environment-friendly water-based high-performance crack decorative paint comprises the following steps of:
A. weighing all the components for standby according to the proportion of the environment-friendly water-based high-performance crack decorative paint;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic polymer into a container, stirring at the speed of 300-500r/min, adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste into the stirring, stirring at the speed of 600-800r/min for 15-25min, adding a thickening agent and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the water-based self-crosslinking acrylic ester copolymer into a container, stirring at the speed of 300-500r/min, adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste into the container, stirring at the speed of 800-1000r/min for 20-35min, adding a thickening agent, and stirring uniformly to obtain the finish paint.
The beneficial effects of the invention are as follows:
1. the finishing paint of the crack decorative paint adopts the water-based self-crosslinking acrylate copolymer, the scratch resistant auxiliary agent containing polyether modified silicone oil solution and the hand feeling wear-resistant agent containing modified ultra-high molecular weight polysiloxane emulsion to match, a polymer network with covalent bonds is formed between the water-based self-crosslinking acrylate copolymer and the modified ultra-high molecular weight polysiloxane emulsion, the polymer network has excellent hardness, adhesive force, wear resistance and the like, and the polyether modified silicone oil solution in the scratch resistant auxiliary agent can well improve the intermolecular stress of the water-based self-crosslinking acrylate copolymer and the modified ultra-high molecular weight polysiloxane emulsion, so that the grid of the polymer network is finer, the performances of better hardness, wear resistance and the like are realized, in addition, the scratch resistant auxiliary agent has excellent leveling property and lubricity, so that the surface tension of the finishing paint film can be reduced, the finishing paint film has good smoothness, the hand feeling smoothness effect of the coating film and good recoating property.
2. The water-based self-crosslinking elastic acrylic acid polymer is adopted by the primer, so that the primer has better toughness, can cover tiny cracks or holes on the surface of an object, so that the surface of the primer is smooth and flat, the adhesion of the finish is facilitated, the water-based self-crosslinking acrylic acid ester copolymer adopted by the finish has excellent crack growth resistance, does not continue to crack after cracking, and can still play a certain role in protecting, in addition, the water-based self-crosslinking elastic acrylic acid polymer and the water-based self-crosslinking acrylic acid ester copolymer belong to an acrylic acid copolymer system, have excellent compatibility, can well avoid the problem that the finish is cracked and then falls off from the primer, and can show a strong crack effect of concave-convex three-dimensional sense.
3. The water-based self-crosslinking elastic acrylic polymer of the primer is matched with the adhesion promoter to form the primer which is suitable for various base materials, and the adhesion promoter contains active groups and can participate in crosslinking of carboxyl groups through the active groups, so that the primer can be better adhered to the surface of the base material.
4. The crack decorative paint is designed in an optimized way, water is used for completely replacing an organic solvent to serve as a dispersion medium, and meanwhile, all components in the whole formula are mutually matched to play roles of mutual synergy and enhancement, so that the prepared crack decorative paint has the advantages of low VOC, incombustibility, explosion resistance, small smell, convenience in construction, wide application range and the like, and meanwhile, the product has good environmental friendliness and protects the painting workers and the personnel of resident personnel from being affected by toxic volatile matters.
5. According to the invention, a large number of experiments are carried out to limit the stirring rate and stirring time of the preparation method, when the stirring rate is too slow, paint liquid is not easy to disperse, agglomeration is easy to generate and coarse, demulsification is easy to generate when the stirring rate is too fast, the stirring time is used for fully and uniformly mixing all components, the effects of an auxiliary agent, a thickening agent and the like are optimal, the stirring is uneven due to too short time, the product temperature is higher due to too long time, part of the auxiliary agent volatilizes, so that the overall performance of the product is reduced, and the adverse effect on the final performance of the product due to the preparation process is avoided by limiting the stirring rate and the stirring time of the preparation method, so that the stability of the comprehensive performance of the product is provided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below in connection with the embodiments of the present invention.
The water-based self-crosslinking elastic acrylic polymer is XG-9813 of Heng-water new optical company, the water-based self-crosslinking acrylic ester copolymer is XG-902F of Heng-water new optical company, the hand feeling wear-resistant agent is SY-8184H of Wennan new material, the scratch-resistant auxiliary agent is DCA-1113 of sharp polymerization chemical industry, the adhesion promoter is DP-18 of Dai-Si material technical company, the defoamer is one or a mixture of HY-62 and HY-7010 of Beijing Mich chemical industry, the Ph regulator is one or a mixture of any two of AMP-95 and triethanolamine, the anti-flash rust agent is 335A of Dragon sea chemical industry, the thickener is TU-87N of Xin-Tike chemical industry, and the color paste is HC023 phthalocyanine blue P.B.15:3 or HC031 scarlet P.R.112 of world name. The water is deionized water; other materials are commercially available unless otherwise specified.
Example 1
Preparation of aqueous self-crosslinking elastic acrylic polymer:
a1: uniformly mixing 20 parts of methyl methacrylate, 28 parts of butyl acrylate, 0.04 part of sodium dodecyl sulfate, 0.06 part of fatty alcohol polyoxyethylene ether and 12 parts of water to obtain a dispersion liquid;
a2: taking 16 parts of water, uniformly mixing with 0.05 part of dimethylethanolamine, heating to 85 ℃, adding 0.02 part of azodiisobutyronitrile and the dispersion liquid, and reacting to obtain seed liquid;
a3: 8 parts of water, 0.03 part of azodiisobutyronitrile, 0.6 part of acrylonitrile and 0.08 part of silane coupling agent are sequentially added into the seed liquid, the temperature is kept for 80 minutes under stirring, then the temperature is reduced to 45 ℃, a PH regulator is added to regulate the PH to 7.5, then 0.03 part of defoamer and 0.04 part of preservative are added, and the aqueous self-crosslinking elastic acrylic acid polymer is obtained after uniform stirring.
Preparation of aqueous self-crosslinking acrylate copolymer:
b1: adding 17 parts of water and 0.16 part of an emulsifier into a container, uniformly stirring, heating to 82 ℃, then sequentially dropwise adding 20 parts of styrene monomer, 28 parts of methyl methacrylate, 12 parts of ethyl acrylate, 0.12 part of allyl polyoxyalkylene epoxy ether and 0.03 part of an initiator, controlling the dropwise adding time to be 2.4 hours, preserving heat for 1.5 hours, then adding 0.03 part of a defoaming agent, regulating the PH to 7.5 by using a PH regulator, and filtering to obtain the water-based self-crosslinking acrylate copolymer.
Preparing environment-friendly water-based high-performance crack decorative paint:
A. and (2) primer: weighing 50 parts of water-based self-crosslinking elastic acrylic polymer, 29 parts of water, 0.25 part of defoamer, 0.6 part of Ph regulator, 1.5 parts of flash rust prevention auxiliary agent, 0.95 part of thickener, 1.2 parts of adhesion promoter, 15 parts of color paste scarlet and 0.9-2.5 parts of antifreezing agent;
and (3) finishing paint: 55 parts of water-based self-crosslinking acrylate copolymer, 20 parts of water, 0.15 part of defoamer, 0.9 part of Ph regulator, 1.5 parts of flash rust prevention auxiliary agent, 0.75 part of thickener, 1.8 parts of scratch resistance auxiliary agent, 15 parts of color paste phthalein blue, 0.8 part of antifreezing agent, 0.6 part of hand feeling wear-resistant agent and 3.5 parts of film forming auxiliary agent are weighed,
wherein the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol in a mass ratio of 5:2, and the film forming auxiliary agent is a mixture of alcohol ester twelve and diethylene glycol butyl ether in a mass ratio of 1:1;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic acid polymer into a stirring kettle, stirring at the speed of 400r/min, sequentially adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste scarlet during stirring, stirring at the speed of 700r/min for 20min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the aqueous self-crosslinking acrylic ester copolymer into a stirring kettle, stirring at the speed of 400r/min, sequentially adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste phthalein blue into the stirring kettle, stirring at the speed of 850r/min for 30min, and then adding a thickening agent according to the principle of a small amount of times, and stirring uniformly to obtain the finish paint.
Example 2
Preparation of aqueous self-crosslinking elastic acrylic polymer:
a1: uniformly mixing 15 parts of methyl methacrylate, 20 parts of butyl acrylate, 0.03 part of sodium dodecyl sulfate, 0.05 part of fatty alcohol polyoxyethylene ether and 10 parts of water to obtain a dispersion liquid;
a2: taking 12 parts of water, uniformly mixing with 0.03 part of dimethylethanolamine, heating to 80 ℃, adding 0.01 part of azodiisobutyronitrile and the dispersion liquid, and reacting to obtain seed liquid;
a3: sequentially adding 5 parts of water, 0.01 part of azodiisobutyronitrile, 0.1 part of acrylonitrile and 0.05 part of silane coupling agent into the seed liquid, preserving heat for 60 minutes under stirring, cooling to 45 ℃, adding a PH regulator to regulate the PH to 7, then adding 0.02 part of defoaming agent and 0.02 part of preservative, and uniformly stirring to obtain the water-based self-crosslinking elastic acrylic polymer.
Preparation of aqueous self-crosslinking acrylate copolymer:
b1: 15 parts of water and 0.1 part of emulsifier are added into a container, the temperature is raised to 75 ℃ after being uniformly stirred, then 15 parts of styrene monomer, 20 parts of methyl methacrylate, 10 parts of ethyl acrylate, 0.1 part of allyl polyoxyalkyl epoxy ether and 0.01 part of initiator are sequentially added dropwise, the dropwise adding time is controlled to be 2 hours, the heat preservation is carried out for 1 hour, then 0.02 part of defoamer is added, the PH is regulated to 7 by a PH regulator, and the water-based self-crosslinking acrylate copolymer is obtained after filtration.
Preparing environment-friendly water-based high-performance crack decorative paint:
A. and (2) primer: 45 parts of water-based self-crosslinking elastic acrylic polymer, 32.1 parts of water, 0.3 part of defoamer, 0.8 part of Ph regulator, 2 parts of flash rust prevention auxiliary agent, 1.3 parts of thickener, 1.2 parts of adhesion promoter, 15 parts of color paste scarlet and 2 parts of antifreezing agent are weighed;
and (3) finishing paint: 60 parts of aqueous self-crosslinking acrylate copolymer, 15 parts of water, 0.15 part of defoamer, 0.9 part of Ph regulator, 1.5 parts of flash rust prevention auxiliary agent, 0.75 part of thickener, 1.8 parts of scratch resistance auxiliary agent, 14.5 parts of color paste phthalein blue, 0.8 part of antifreezing agent, 0.6 part of hand feeling wear-resistant agent and 4 parts of film forming auxiliary agent are weighed,
wherein the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol in a mass ratio of 2:1, and the film forming auxiliary agent is a mixture of alcohol ester twelve and ethylene glycol butyl ether in a mass ratio of 2:1;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic acid polymer into a stirring kettle, stirring at the speed of 300r/min, sequentially adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste scarlet during stirring, stirring at the speed of 800r/min for 15min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the aqueous self-crosslinking acrylic ester copolymer into a stirring kettle, stirring at the speed of 500r/min, sequentially adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste phthalein blue into the stirring kettle, stirring at the speed of 1000r/min for 20min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain the finish paint.
Example 3
Preparation of aqueous self-crosslinking elastic acrylic polymer:
a1: uniformly mixing 30 parts of methyl methacrylate, 35 parts of butyl acrylate, 0.05 part of sodium dodecyl sulfate, 0.07 part of fatty alcohol polyoxyethylene ether and 15 parts of water to obtain a dispersion liquid;
a2: taking 20 parts of water, uniformly mixing with 0.03 part of dimethylethanolamine, heating to 90 ℃, adding 0.03 part of azodiisobutyronitrile and the dispersion liquid, and reacting to obtain seed liquid;
a3: 10 parts of water, 0.05 part of azodiisobutyronitrile, 1 part of acrylonitrile and 0.1 part of silane coupling agent are sequentially added into the seed liquid, the temperature is kept for 100 minutes under stirring, then the temperature is reduced to 45 ℃, the PH regulator is added to regulate the PH to 8, then 0.05 part of defoamer and 0.05 part of preservative are added, and the aqueous self-crosslinking elastic acrylic acid polymer is obtained after uniform stirring.
Preparation of aqueous self-crosslinking acrylate copolymer:
b1: adding 20 parts of water and 0.2 part of an emulsifier into a container, uniformly stirring, heating to 90 ℃, then sequentially dropwise adding 25 parts of styrene monomer, 35 parts of methyl methacrylate, 15 parts of ethyl acrylate, 0.15 part of allyl polyoxyalkylene epoxy ether and 0.05 part of an initiator, controlling the dropwise adding time to be 3 hours, preserving heat for 2 hours, then adding 0.05 part of an antifoaming agent, regulating the PH to 8 by using a PH regulator, and filtering to obtain the water-based self-crosslinking acrylate copolymer.
Preparing environment-friendly water-based high-performance crack decorative paint:
A. and (2) primer: 40 parts of water-based self-crosslinking elastic acrylic polymer, 25 parts of water, 0.15 part of defoamer, 0.3 part of Ph regulator, 1.8 parts of flash rust prevention auxiliary agent, 0.8 part of thickener, 0.8 part of adhesion promoter, 5 parts of color paste scarlet and 0.9 part of antifreezing agent are weighed;
and (3) finishing paint: 65 parts of aqueous self-crosslinking acrylate copolymer, 18 parts of water, 0.05 part of defoamer, 0.5 part of Ph regulator, 0.5 part of flash rust prevention auxiliary agent, 0.5 part of thickener, 1.3 parts of scratch resistance auxiliary agent, 8 parts of color paste phthalocyanine blue, 0.5 part of antifreezing agent, 0.5 part of hand feeling wear-resistant agent and 3 parts of film forming auxiliary agent are weighed,
wherein the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol with the mass ratio of 2.3:1, and the film forming auxiliary agent is alcohol ester twelve;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic acid polymer into a stirring kettle, stirring at the speed of 500r/min, sequentially adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste scarlet during stirring, stirring at the speed of 600r/min for 25min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the aqueous self-crosslinking acrylic ester copolymer into a stirring kettle, stirring at the speed of 300r/min, sequentially adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste phthalein blue into the stirring kettle, stirring at the speed of 800r/min for 35min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain the finish paint.
Example 4
Preparation of aqueous self-crosslinking elastic acrylic polymer:
a1: uniformly mixing 20 parts of methyl methacrylate, 28 parts of butyl acrylate, 0.04 part of sodium dodecyl sulfate, 0.06 part of fatty alcohol polyoxyethylene ether and 12 parts of water to obtain a dispersion liquid;
a2: taking 16 parts of water, uniformly mixing with 0.05 part of dimethylethanolamine, heating to 85 ℃, adding 0.02 part of azodiisobutyronitrile and the dispersion liquid, and reacting to obtain seed liquid;
a3: 8 parts of water, 0.03 part of azodiisobutyronitrile, 0.6 part of acrylonitrile and 0.08 part of silane coupling agent are sequentially added into the seed liquid, the temperature is kept for 80 minutes under stirring, then the temperature is reduced to 45 ℃, a PH regulator is added to regulate the PH to 7.5, then 0.03 part of defoamer and 0.04 part of preservative are added, and the aqueous self-crosslinking elastic acrylic acid polymer is obtained after uniform stirring.
Preparation of aqueous self-crosslinking acrylate copolymer:
b1: adding 17 parts of water and 0.16 part of an emulsifier into a container, uniformly stirring, heating to 82 ℃, then sequentially dropwise adding 20 parts of styrene monomer, 28 parts of methyl methacrylate, 12 parts of ethyl acrylate, 0.12 part of allyl polyoxyalkylene epoxy ether and 0.03 part of an initiator, controlling the dropwise adding time to be 2.4 hours, preserving heat for 1.5 hours, then adding 0.03 part of a defoaming agent, regulating the PH to 7.5 by using a PH regulator, and filtering to obtain the water-based self-crosslinking acrylate copolymer.
Preparing environment-friendly water-based high-performance crack decorative paint:
A. and (2) primer: 55 parts of water-based self-crosslinking elastic acrylic polymer, 35 parts of water, 0.4 part of defoamer, 0.5 part of Ph regulator, 1.6 parts of flash rust prevention auxiliary agent, 1 part of thickener, 1 part of adhesion promoter, 10 parts of color paste scarlet and 2.5 parts of antifreezing agent are weighed;
and (3) finishing paint: 62 parts of aqueous self-crosslinking acrylate copolymer, 20 parts of water, 0.1 part of defoamer, 0.6 part of Ph regulator, 0.8 part of flash rust prevention auxiliary agent, 1 part of thickener, 2.2 parts of scratch resistance auxiliary agent, 12 parts of color paste phthalocyanine blue, 0.7 part of antifreezing agent, 1 part of hand feeling wear-resistant agent and 4.5 parts of film forming auxiliary agent are weighed,
wherein the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol in a mass ratio of 5:2, and the film forming auxiliary agent is ethylene glycol butyl ether;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic acid polymer into a stirring kettle, stirring at the speed of 450r/min, sequentially adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste scarlet during stirring, stirring at the speed of 700r/min for 20min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the aqueous self-crosslinking acrylic ester copolymer into a stirring kettle, stirring at the speed of 450r/min, sequentially adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste phthalein blue into the stirring kettle, stirring at the speed of 900r/min for 28min, and then adding a thickening agent according to the principle of a small amount of multiple times, and stirring uniformly to obtain the finish paint.
Comparative example 1
Comparative example 1 differs from example 1 only in that the top coat in comparative example 1 was free of scratch resistance aids.
Comparative example 2
Comparative example 2 differs from example 1 only in that the top coat in comparative example 2 does not add a hand wear-resistant agent.
Comparative example 3
Comparative example 3 differs from example 1 only in that the primer in comparative example 3 does not add an adhesion promoter.
2. Performance testing
The primer and the top coat prepared in the above examples and comparative examples were applied by spraying, the primer was applied on the substrate, then the top coat was applied on the primer, and then performance test was performed according to the coating HG/T4758-2014 standard, and the test results are shown in tables 1-2.
TABLE 1
TABLE 2
As shown in Table 1, the crack paint prepared by the invention has the water resistance of not less than 240H, the acid resistance of not less than 96H, the alkali resistance of not less than 72H, the oil resistance of not less than 24H, the gasoline resistance of not less than 24H, the hardness of H, the adhesion of 0 level, the impact strength of 50cm passing, the artificial aging resistance of 1000H, no pulverization, bubbling, falling and cracking, and the abrasion resistance of not less than 0.5mm.
As is clear from comparison between the example 1 and the comparative examples 1-2, the comparative example 2 is not added with the hand feeling wear-resistant agent, so that the prepared crack paint is poor in hardness, adhesive force and wear resistance, while the comparative example 1 is added with the hand feeling wear-resistant agent, but not with scratch-resistant auxiliary agent, the hardness, adhesive force and wear resistance of the crack paint are improved to a limited extent, but the example 1 is added with the hand feeling wear-resistant agent and the scratch-resistant auxiliary agent at the same time, the hardness, adhesive force and wear resistance of the crack paint are improved to a great extent, and the effect brought by the single addition of the hand feeling wear-resistant agent or the scratch-resistant auxiliary agent is far better than that brought by the single addition of the hand feeling wear-resistant agent, the scratch-resistant auxiliary agent and other components in the finish paint are enhanced in a synergistic manner, so that the hardness, adhesive force and wear resistance of the crack paint are improved to a great extent.
As can be seen from the comparison of the example 1 and the comparative example 3, the adhesion promoter is not added in the comparative example 3, and experiments show that the added adhesion promoter not only can enhance the adhesion of the finish paint, but also can enhance the wear resistance and the hardness of the crack paint, thus indicating that the adhesion promoter and other components in the invention generate a synergistic enhancement effect.
Claims (9)
1. The environment-friendly water-based high-performance crack decorative paint is characterized by comprising a primer and a finish paint, wherein the primer comprises, by weight, 40-55 parts of a water-based self-crosslinking elastic acrylic polymer, 25-35 parts of water, 0.15-0.4 part of an antifoaming agent, 0.3-0.8 part of a Ph regulator, 1.5-2.0 parts of an anti-rust auxiliary agent, 0.8-1.3 parts of a thickening agent, 0.8-1.5 parts of an adhesion promoter, 5-15 parts of color paste and 0.9-2.5 parts of an antifreezing agent;
the finishing paint comprises, by weight, 55-65 parts of a water-based self-crosslinking acrylate copolymer, 15-20 parts of water, 0.05-0.15 part of a defoaming agent, 0.5-0.9 part of a Ph regulator, 0.5-1.5 parts of a flash rust prevention auxiliary agent, 0.5-1.0 part of a thickening agent, 1.3-2.2 parts of a scratch resistance auxiliary agent, 8-15 parts of color paste, 0.5-0.8 part of an antifreezing agent, 0.5-1.0 part of a hand feeling wear-resistant agent and 3.0-4.5 parts of a film forming auxiliary agent.
2. The environment-friendly water-based high-performance crack decorative paint as claimed in claim 1, wherein the preparation method of the water-based self-crosslinking elastic acrylic polymer comprises the following steps:
a1: uniformly mixing 15-30 parts of methyl methacrylate, 20-35 parts of butyl acrylate, 0.03-0.05 part of sodium dodecyl sulfate, 0.05-0.07 part of fatty alcohol polyoxyethylene ether and 10-15 parts of water to obtain a dispersion liquid;
a2: taking 12-20 parts of water, uniformly mixing with 0.03-0.06 part of dimethylethanolamine, heating to 80-90 ℃, adding 0.01-0.03 part of dispersion liquid and azodiisobutyronitrile, and reacting to obtain seed liquid;
a3: sequentially adding 5-10 parts of water, 0.01-0.05 part of azodiisobutyronitrile, 0.1-1 part of acrylonitrile and 0.05-0.1 part of silane coupling agent into the seed liquid, preserving heat for 60-100min under stirring, then adding a PH regulator to adjust PH to 7-8, then adding 0.02-0.05 part of defoamer and 0.02-0.05 part of preservative, and uniformly stirring to obtain the water-based self-crosslinking elastic acrylic acid polymer.
3. The environment-friendly water-based high-performance crack decorative paint as claimed in claim 1, wherein the preparation method of the water-based self-crosslinking acrylate copolymer comprises the following steps:
b1: adding 15-20 parts of water and 0.1-0.2 part of emulsifier into a container, uniformly stirring, heating to 75-90 ℃, then sequentially dripping 15-25 parts of styrene monomer, 20-35 parts of methyl methacrylate, 10-15 parts of ethyl acrylate, 0.1-0.15 part of allyl polyoxyalkyl epoxy ether and 0.01-0.05 part of initiator, controlling the dripping time to 2-3h, preserving heat for 1-2h, then adding 0.02-0.05 part of defoamer, regulating the PH to 7-8 by using a PH regulator, and filtering to obtain the water-based self-crosslinking acrylate copolymer.
4. The environmentally friendly aqueous high performance crack decorative paint of claim 1 wherein said hand wear resistant agent comprises a modified ultra high molecular weight polysiloxane emulsion.
5. The environment-friendly water-based high-performance crack decorative paint as claimed in claim 1, wherein the antifreezing agent comprises a mixture of propylene glycol and ethylene glycol, and the mass ratio of the propylene glycol to the ethylene glycol is 2-3:1.
6. The environment-friendly water-based high-performance crack decorative paint as claimed in claim 1, wherein the scratch-resistant auxiliary agent contains polyether modified silicone oil solution.
7. The environmentally friendly aqueous high performance crack decorative paint of claim 1 wherein said thickener is a nonionic polyurethane associative thickener.
8. The environment-friendly water-based high-performance crack decorative paint according to claim 1, wherein the film forming additive comprises one or more of alcohol ester twelve, diethylene glycol butyl ether and ethylene glycol butyl ether.
9. A method for preparing the environment-friendly water-based high-performance crack decorative paint as claimed in claim 1, comprising the following steps:
A. weighing all the components for standby according to the proportion of the environment-friendly water-based high-performance crack decorative paint;
B. preparing a primer: adding the water-based self-crosslinking elastic acrylic polymer into a container, stirring at the speed of 300-500r/min, adding water, an antifreezing agent, a Ph regulator, an anti-flash rust agent, a defoaming agent, an adhesion promoter and color paste into the stirring, stirring at the speed of 600-800r/min for 15-25min, adding a thickening agent and stirring uniformly to obtain a primer;
C. preparing a finishing paint: adding the water-based self-crosslinking acrylic ester copolymer into a container, stirring at the speed of 300-500r/min, adding water, an antifreezing agent, a Ph regulator, a film forming auxiliary agent, a flash rust inhibitor, a defoaming agent, a scratch resistant auxiliary agent, a hand feeling wear-resistant agent and color paste into the container, stirring at the speed of 800-1000r/min for 20-35min, adding a thickening agent, and stirring uniformly to obtain the finish paint.
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