CN116179063A - Environment-friendly water-based pearlescent paint and preparation method thereof - Google Patents
Environment-friendly water-based pearlescent paint and preparation method thereof Download PDFInfo
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- CN116179063A CN116179063A CN202310106323.8A CN202310106323A CN116179063A CN 116179063 A CN116179063 A CN 116179063A CN 202310106323 A CN202310106323 A CN 202310106323A CN 116179063 A CN116179063 A CN 116179063A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000003973 paint Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- 239000000839 emulsion Substances 0.000 claims abstract description 48
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 40
- 239000008367 deionised water Substances 0.000 claims abstract description 32
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 31
- 239000002270 dispersing agent Substances 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 20
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 15
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 13
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 13
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 45
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000013530 defoamer Substances 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 6
- -1 polysiloxane Polymers 0.000 claims description 6
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical compound CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 3
- 241000208202 Linaceae Species 0.000 claims description 3
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 claims description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 230000007480 spreading Effects 0.000 abstract description 2
- 238000003892 spreading Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 14
- 239000000047 product Substances 0.000 description 5
- 238000001132 ultrasonic dispersion Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical group CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002932 luster 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
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Substances CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
-
- 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
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- 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
-
- 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
- C09D7/45—Anti-settling agents
-
- 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
Abstract
The invention discloses an environment-friendly water-based pearlescent paint, which comprises the following components in parts by weight: 40-55 parts of aqueous resin emulsion; 6-10 parts of pearl powder; 3-5 parts of dispersing agent; 1-3 parts of an anti-settling agent; 1-3 parts of directional arrangement auxiliary agent; 0.5-2 parts of defoaming agent; 1-2 parts of flatting agent; 2-3 parts of film forming auxiliary agent; 1-2 parts of a thickening agent; 8-10 parts of ethanol; 13-18 parts of deionized water. The invention also discloses a preparation method of the environment-friendly water-based pearlescent paint. According to the environment-friendly water-based pearlescent paint, the water-based polyurethane emulsion and the water-based acrylic resin are compounded to serve as an emulsion matrix, meanwhile, the color spreading property of the water-based pearlescent slurry in gloss oil is improved by reasonably matching the auxiliary agents, and the glossiness of the water-based pearlescent paint is further improved by adding the directional arrangement auxiliary agents, so that various performance indexes of the environment-friendly water-based pearlescent paint meet relevant use requirements, and the environment-friendly water-based pearlescent paint has the advantages of being low in cost, good in environment-friendly performance, good in practicality and the like.
Description
Technical Field
The invention belongs to the technical field of paint, and particularly relates to an environment-friendly water-based pearlescent paint and a preparation method thereof.
Background
The pearlescent paint is widely applied to various industries such as surface treatment of automobiles, building materials, furniture, machines, ornaments and artware. The traditional solvent type pearlescent paint contains a large amount of toxic solvents, causes serious environmental pollution during construction, and has great harm to the health of constructors, so that the cost is inevitably greatly increased to solve the problems.
Although water-based pearlescent paint products exist in the market at present, most of the products are endowed with pearlescent effect by adding mercerized pearlescent slurry, the cost is high, and few products are used for preparing the water-based pearlescent paint by adding pearlescent powder, but the surface smoothness of the sprayed products is poor and the luster is uneven due to poor uniformity of the distribution of the pearlescent powder in the system, so that the popularization and the use cannot be well performed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the main object of the invention is: in principle of considering economical efficiency and practicability, the environment-friendly water-based pearlescent paint with excellent performance, low price, safety and environmental protection is developed. The invention also provides a preparation method of the environment-friendly water-based pearlescent paint.
The invention aims at realizing the following technical scheme:
the environment-friendly water-based pearlescent paint comprises the following components in parts by weight: 40-55 parts of aqueous resin emulsion; 6-10 parts of pearl powder; 3-5 parts of dispersing agent; 1-3 parts of an anti-settling agent; 1-3 parts of directional arrangement auxiliary agent; 0.5-2 parts of defoaming agent; 1-2 parts of flatting agent; 2-3 parts of film forming auxiliary agent; 1-2 parts of a thickening agent; 8-10 parts of ethanol; 13-18 parts of deionized water.
In certain specific embodiments, the environment-friendly water-based pearlescent coating comprises the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 0.5 parts of defoamer; 1 part of leveling agent; 2 parts of film forming auxiliary agent; 1 part of thickener; 10 parts of ethanol; 15 parts of deionized water.
In certain specific embodiments, the environment-friendly water-based pearlescent coating comprises the following components in parts by weight: 40 parts of aqueous resin emulsion; 6 parts of pearl powder; 3 parts of dispersing agent; 1.5 parts of anti-settling agent; 1 part of directional arrangement auxiliary agent; 0.5 parts of defoamer; 1 part of leveling agent; 2 parts of film forming auxiliary agent; 1 part of thickener; 8 parts of ethanol; 13 parts of deionized water.
In certain specific embodiments, the environment-friendly water-based pearlescent coating comprises the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 1 part of defoaming agent; 1.5 parts of flatting agent; 2.5 parts of film forming additive; 1 part of thickener; 10 parts of ethanol; 17 parts of deionized water.
In certain specific embodiments, the environment-friendly water-based pearlescent coating comprises the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 1.5 parts of defoamer; 2 parts of flatting agent; 3 parts of film forming auxiliary agent; 1.5 parts of thickener; 10 parts of ethanol; 18 parts of deionized water.
In certain embodiments, the pearl powder has a mesh size of 400-600 mesh.
In certain embodiments, the aqueous resin emulsion is a mixture of an aqueous polyurethane emulsion and an aqueous acrylic resin emulsion.
In certain embodiments, the dispersant is a high molecular block copolymer with pigment affinic groups; the anti-settling agent is a mixture of flax cellulose and bentonite.
In certain embodiments, the alignment aid is a nonionic ethylene ethyl acetate copolymer emulsion; the defoaming agent is formed by compounding polyether modified resin and modified polysiloxane; the film forming auxiliary agent is compounded by propylene glycol phenyl ether, dipropylene glycol butyl ether and alcohol ester.
The preparation method of the environment-friendly water-based pearlescent paint comprises the following steps:
1) Mixing the two aqueous resin emulsions, adding deionized water, a dispersing agent, an anti-settling agent, a defoaming agent and a leveling agent, stirring for 5-10min at 500-1000r/min, sequentially adding a film forming additive, ethanol, a thickening agent and deionized water, and stirring for 3-5min at 1000-1500r/min to obtain gloss oil;
2) Mixing pearl powder, deionized water, ethanol, a dispersing agent and an anti-settling agent to obtain aqueous pearl slurry; dispersing aqueous pearlescent slurry for 5-10min, adding into gloss oil, stirring for 30-60min at 300-500r/min, adding orientation auxiliary agent, and stirring for 3-5min at 200-300r/min to obtain the final product.
Compared with the prior art, the invention has at least the following advantages:
1) According to the environment-friendly water-based pearlescent paint provided by the invention, the water-based pearlescent slurry is obtained after ultrasonic dispersion by adopting the pearlescent powder (400-600 meshes) with specific meshes and assisted by a scientific and reasonable dispersing agent, an anti-settling agent and a solvent system, so that the glossiness of the water-based pearlescent slurry is good, uniform and stable, and layering phenomenon does not occur after standing for 24 hours;
2) The environment-friendly water-based pearlescent paint provided by the invention has the advantages that the water-based polyurethane emulsion and the water-based acrylic resin are compounded to be used as emulsion matrixes, so that good flexibility, wear resistance and excellent glossiness of the coating are provided, the emulsion matrixes with specific proportions are adopted, meanwhile, the color spreading performance of the water-based pearlescent slurry in gloss oil is improved by reasonably proportioning the auxiliary agents, and the directional arrangement auxiliary agents are added after the water-based pearlescent paint, so that the water-based pearlescent paint has excellent adhesive force, hardness and glossiness and also has excellent uniform stability when the cost is kept low.
3) The environment-friendly water-based pearlescent paint provided by the invention adopts two water-based resin matrixes as water-based emulsion, meets the environment-friendly requirement, has quick-drying property, and ensures that the product has good workability after being dried at 60 ℃ for about 1min by compounding ethanol in a system.
Detailed Description
The invention is further illustrated by the following specific examples, which are intended to be illustrative only and not limiting in any way.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as an upper range limit, or as a lower range limit, it is to be understood that any range is specifically disclosed by combining any pair of the upper range limit or preferred value with any lower range limit or preferred value, regardless of whether the range is specifically disclosed. Unless otherwise indicated, the numerical range values set forth herein are intended to include the endpoints of the range, and all integers and fractions within the range.
All percentages, parts, ratios, etc. herein are by weight unless otherwise specified.
The materials, methods, and examples herein are illustrative and, unless otherwise indicated, should not be construed as limiting.
Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any method or material similar or equivalent to those described may be used in the present invention. The experimental methods for which specific conditions are not specified in the examples are generally conducted under conventional conditions or under conditions recommended by the manufacturer.
The environment-friendly water-based pearlescent paint comprises the following components in parts by weight: 40-55 parts of aqueous resin emulsion; 6-10 parts of pearl powder; 3-5 parts of dispersing agent; 1-3 parts of an anti-settling agent; 1-3 parts of directional arrangement auxiliary agent; 0.5-2 parts of defoaming agent; 1-2 parts of flatting agent; 2-3 parts of film forming auxiliary agent; 1-2 parts of a thickening agent; 8-10 parts of ethanol; 13-18 parts of deionized water.
In the following examples, the pearl powder was used in an amount of 400 to 600 mesh;
the aqueous resin emulsion is a mixture of aqueous polyurethane emulsion (119-E0509 of Guangdong province honeycomb nano materials Co., ltd.) and aqueous acrylic resin emulsion (ZH-6014 of new materials Co., in Huangshan city) with a mass ratio of 10-25:15-30;
the dispersing agent is purchased from Qian jin of Buddha, and is of the types AKN-2091 and AKN-2011, which are all high molecular block copolymers with pigment affinity groups; the dispersant used in the following examples was 1 by mass: AKN-2091 and AKN-2011.
The anti-settling agent is a mixture of flax cellulose and bentonite in a mass ratio of 2:1;
the directional arrangement auxiliary agent is formed by compounding two nonionic ethylene-ethyl acetate copolymer emulsions, and is purchased from Dongguan city pedicel new material limited company, the models are 8421A and 8241B, and the qualitative arrangement auxiliary agent adopted in the following examples is a mixture of 8421A and 8421B with the mass ratio of 3:1;
the defoamer is prepared by compounding polyether modified resin (DT-250 of south sea field chemical Co., ltd. In Buddha) and modified polysiloxane (AKN-3801 of Qian-you-chemical Co., ltd. In Buddha) in a mass ratio of 4:1;
the film forming auxiliary agent is prepared from the following components in percentage by mass: 1 propylene glycol phenyl ether, dipropylene glycol butyl ether and alcohol ester are compounded.
Distilled water or deionized water can be selected as the water, digao 410 can be selected as the flatting agent, haimines 299 can be selected as the thickening agent, and the volume concentration of ethanol is 99.5 percent.
In the examples described below, the gloss (20 ℃) was tested by GB/T9754; adhesion was tested by GB/T9286; pencil hardness was tested by GB/T6739; the tack-free time is tested by finger touch.
Example 1
The environment-friendly water-based pearlescent paint provided by the invention is prepared by the following method: mixing 25 parts of aqueous polyurethane emulsion and 15 parts of aqueous acrylic resin emulsion, adding 5 parts of deionized water, 2 parts of dispersing agent, 1 part of anti-settling agent, 0.5 part of defoaming agent and 1 part of leveling agent under the stirring condition of 1000r/min, stirring for 8min, then sequentially adding 2 parts of film forming additive, 5 parts of ethanol, 1 part of thickening agent and 5 parts of deionized water under the stirring condition of 1500r/min, and stirring for 5min to obtain gloss oil; mixing 8 parts of pearl powder, 5 parts of deionized water, 5 parts of ethanol, 3 parts of dispersing agent and 2 parts of anti-settling agent to obtain aqueous pearl slurry, adding the aqueous pearl slurry into gloss oil after ultrasonic dispersion for 5min, stirring for 60min under the stirring condition of 500r/min, adding 2 parts of directional arrangement auxiliary agent, and stirring for 3min under the stirring condition of 300r/min to obtain the aqueous pearl coating.
Example 2
The environment-friendly water-based pearlescent paint provided by the invention is prepared by the following method: mixing 25 parts of aqueous polyurethane emulsion and 15 parts of aqueous acrylic resin emulsion, adding 5 parts of deionized water, 1 part of dispersing agent, 0.5 part of anti-settling agent, 0.5 part of defoaming agent and 1 part of leveling agent under the stirring condition of 1000r/min, stirring for 8min, then sequentially adding 2 parts of film-forming auxiliary agent, 5 parts of ethanol, 1 part of thickening agent and 5 parts of deionized water under the stirring condition of 1500r/min, and stirring for 5min to obtain gloss oil; mixing 6 parts of pearl powder, 3 parts of deionized water, 3 parts of ethanol, 2 parts of dispersing agent and 1 part of anti-settling agent to obtain aqueous pearl slurry, adding the aqueous pearl slurry into gloss oil after ultrasonic dispersion for 5min, stirring for 40min under the stirring condition of 500r/min, adding 1 part of directional arrangement auxiliary agent, and stirring for 3min under the stirring condition of 200r/min to obtain the aqueous pearl coating.
Example 3
The environment-friendly water-based pearlescent paint provided by the invention is prepared by the following method: mixing 20 parts of aqueous polyurethane emulsion and 20 parts of aqueous acrylic resin emulsion, adding 7 parts of deionized water, 2 parts of dispersing agent, 1 part of anti-settling agent, 1 part of defoaming agent and 1.5 parts of leveling agent under the stirring condition of 1000r/min, stirring for 10min, then sequentially adding 2.5 parts of film-forming auxiliary agent, 5 parts of ethanol, 1 part of thickening agent and 5 parts of deionized water under the stirring condition of 1500r/min, and stirring for 5min to obtain gloss oil; mixing 8 parts of pearl powder, 5 parts of deionized water, 5 parts of ethanol, 3 parts of dispersing agent and 2 parts of anti-settling agent to obtain aqueous pearl slurry, adding the aqueous pearl slurry into gloss oil after ultrasonic dispersion for 5min, stirring for 60min under the stirring condition of 500r/min, adding 2 parts of directional arrangement auxiliary agent, and stirring for 3min under the stirring condition of 300r/min to obtain the aqueous pearl coating.
Example 4
The environment-friendly water-based pearlescent paint provided by the invention is prepared by the following method: mixing 10 parts of aqueous polyurethane emulsion and 30 parts of aqueous acrylic resin emulsion, adding 8 parts of deionized water, 2 parts of dispersing agent, 1 part of anti-settling agent, 1.5 parts of defoaming agent and 2 parts of leveling agent under the stirring condition of 1000r/min, stirring for 10min, then sequentially adding 3 parts of film forming additive, 5 parts of ethanol, 1.5 parts of thickening agent and 5 parts of deionized water under the stirring condition of 1500r/min, and stirring for 5min to obtain gloss oil; mixing 8 parts of pearl powder, 5 parts of deionized water, 5 parts of ethanol, 3 parts of dispersing agent and 2 parts of anti-settling agent to obtain aqueous pearl slurry, adding the aqueous pearl slurry into gloss oil after ultrasonic dispersion for 5min, stirring for 60min under the stirring condition of 500r/min, adding 2 parts of directional arrangement auxiliary agent, and stirring for 3min under the stirring condition of 300r/min to obtain the aqueous pearl coating.
Comparative example 1:
the environment-friendly water-based pearlescent paint in this comparative example has the same composition and proportion as in example 2, except that it contains 40 parts of water-based polyurethane emulsion and does not contain water-based acrylic resin emulsion; the preparation method is the same as that of the example 2;
comparative example 2:
the environment-friendly water-based pearlescent paint in this comparative example has the same composition and proportion as in example 2, except that it contains 40 parts of water-based acrylic resin emulsion and does not contain water-based polyurethane emulsion; the preparation method is the same as that of the example 2;
comparative example 3:
the environment-friendly water-based pearlescent paint provided by the invention is prepared by the following method: mixing 25 parts of aqueous polyurethane emulsion and 15 parts of aqueous acrylic resin emulsion, adding 13 parts of deionized water, 6 parts of pearl powder, 3 parts of dispersing agent, 1.5 parts of anti-settling agent, 0.5 part of defoaming agent, 1 part of leveling agent, 2 parts of film forming additive, 8 parts of ethanol and 1 part of thickening agent under the stirring condition of 1000r/min, stirring for 40min under the stirring condition of 500r/min, adding 1 part of directional arrangement additive, and stirring for 3min under the stirring condition of 200r/min to obtain the aqueous pearl paint.
Comparative example 4
The components and proportions of the environment-friendly water-based pearlescent paint in this comparative example are basically the same as those in example 2, except that the mesh number of the pearlescent powder used is 350 mesh; the preparation method is the same as in example 2.
Comparative example 5
The components and proportions of the environment-friendly water-based pearlescent paint in the comparative example are basically the same as those in example 2, except that the mesh number of the pearlescent powder used is 650 mesh; the preparation method is the same as in example 2.
The stability performance test is carried out on the aqueous pearlescent slurry prepared in the examples 1-4, specifically, the prepared aqueous pearlescent slurry is placed for 24 hours at room temperature, and layering phenomenon does not occur; the aqueous pearlescent slurry has excellent uniform stability.
The performance of the environment-friendly water-based pearlescent coatings prepared in the examples 1-4 and the comparative examples 1-5 is tested, and the results are shown in table 1:
remarks: the method for testing the uniform stability comprises the steps of placing the environment-friendly water-based pearlescent paint at 25 ℃ for one week, judging whether the environment-friendly water-based pearlescent paint is layered, and judging that the environment-friendly water-based pearlescent paint is unqualified if the environment-friendly water-based pearlescent paint is layered; and if the coating is not layered and the glossiness, the adhesive force, the pencil hardness and the surface drying time of the prepared coating meet the requirements, judging the coating to be qualified.
As can be seen from Table 1, the environment-friendly water-based pearlescent paint prepared by the invention has the advantages of high gloss, high adhesive force, high surface hardness, good surface dryness and the like. From the comparison of the comparative examples 1 and 2 with the example 2, the aqueous polyurethane emulsion and the aqueous acrylic resin emulsion in the application produce synergistic effect after being compounded, so that the environment-friendly aqueous pearlescent paint has excellent glossiness, adhesive force and surface hardness; as can be seen from comparative example 3 and example 2, the aqueous environment-friendly pearlescent paint in the application is prepared by preparing aqueous pearlescent powder with good uniform stability, and then compounding the aqueous pearlescent powder with gloss oil, so that the pearlescent powder can be well dispersed in the gloss oil to form uniform and stable environment-friendly aqueous pearlescent paint, and meanwhile, the environment-friendly aqueous pearlescent paint meeting the requirements is obtained; from comparative example 4, comparative example 5 and example 2, it is known that an environment-friendly aqueous pearlescent paint having excellent glossiness, adhesion, hardness and workability is prepared by employing a particular mesh of pearlescent powder in the present application and synergistically cooperating with other components in the present application. The environment-friendly water-based pearlescent paint provided by the application not only meets the related use requirements of various performance indexes, but also has the advantages of low cost, good environment friendliness, good practicability and the like.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. The environment-friendly water-based pearlescent paint is characterized by comprising the following components in parts by weight: 40-55 parts of aqueous resin emulsion; 6-10 parts of pearl powder; 3-5 parts of dispersing agent; 1-3 parts of an anti-settling agent; 1-3 parts of directional arrangement auxiliary agent; 0.5-2 parts of defoaming agent; 1-2 parts of flatting agent; 2-3 parts of film forming auxiliary agent; 1-2 parts of a thickening agent; 8-10 parts of ethanol; 13-18 parts of deionized water.
2. The environment-friendly water-based pearlescent paint according to claim 1, which is characterized by comprising the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 0.5 parts of defoamer; 1 part of leveling agent; 2 parts of film forming auxiliary agent; 1 part of thickener; 10 parts of ethanol; 15 parts of deionized water.
3. The environment-friendly water-based pearlescent paint according to claim 1, which is characterized by comprising the following components in parts by weight: 40 parts of aqueous resin emulsion; 6 parts of pearl powder; 3 parts of dispersing agent; 1.5 parts of anti-settling agent; 1 part of directional arrangement auxiliary agent; 0.5 parts of defoamer; 1 part of leveling agent; 2 parts of film forming auxiliary agent; 1 part of thickener; 8 parts of ethanol; 13 parts of deionized water.
4. The environment-friendly water-based pearlescent paint according to claim 1, which is characterized by comprising the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 1 part of defoaming agent; 1.5 parts of flatting agent; 2.5 parts of film forming additive; 1 part of thickener; 10 parts of ethanol; 17 parts of deionized water.
5. The environment-friendly water-based pearlescent paint according to claim 1, which is characterized by comprising the following components in parts by weight: 40 parts of aqueous resin emulsion; 8 parts of pearl powder; 5 parts of dispersing agent; 3 parts of anti-settling agent; 2 parts of directional arrangement auxiliary agent; 1.5 parts of defoamer; 2 parts of flatting agent; 3 parts of film forming auxiliary agent; 1.5 parts of thickener; 10 parts of ethanol; 18 parts of deionized water.
6. The environmentally friendly water-based pearlescent coating of claim 1, wherein the mesh number of the pearlescent powder is 400-600 mesh.
7. The environmentally friendly water-based pearlescent coating of claim 1, wherein the water-based resin emulsion is a mixture of water-based polyurethane emulsion and water-based acrylic resin emulsion.
8. The environmentally friendly water-based pearlescent paint of claim 1, wherein the dispersant is a high molecular block copolymer with pigment affinity group; the anti-settling agent is a mixture of flax cellulose and bentonite.
9. The environment-friendly water-based pearlescent coating of claim 4, wherein the orientation auxiliary agent is nonionic ethylene-ethyl acetate copolymer emulsion; the defoaming agent is formed by compounding polyether modified resin and modified polysiloxane; the film forming auxiliary agent is compounded by propylene glycol phenyl ether, dipropylene glycol butyl ether and alcohol ester.
10. The method for preparing an environment-friendly water-based pearlescent paint according to any one of claims 1 to 9, comprising the steps of:
1) Mixing the two aqueous resin emulsions, adding deionized water, a dispersing agent, an anti-settling agent, a defoaming agent and a leveling agent, stirring for 5-10min at 500-1000r/min, sequentially adding a film forming additive, ethanol, a thickening agent and deionized water, and stirring for 3-5min at 1000-1500r/min to obtain gloss oil;
2) Mixing pearl powder, deionized water, ethanol, a dispersing agent and an anti-settling agent to obtain aqueous pearl slurry; dispersing aqueous pearlescent slurry for 5-10min, adding into gloss oil, stirring for 30-60min at 300-500r/min, adding orientation auxiliary agent, and stirring for 3-5min at 200-300r/min to obtain the final product.
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| CN202310106323.8A CN116179063A (en) | 2023-02-13 | 2023-02-13 | Environment-friendly water-based pearlescent paint and preparation method thereof |
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| CN202310106323.8A CN116179063A (en) | 2023-02-13 | 2023-02-13 | Environment-friendly water-based pearlescent paint and preparation method thereof |
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