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Aqueous metal glossy lacquer for cars and preparation method thereof

A metal flash paint, water-based technology, applied in metal-free paints, coatings, polyurea/polyurethane coatings, etc., can solve the problems affecting the mechanical properties of the overall automotive paint film, chemical resistance and weather resistance, and affect the implementation of the 3C1B process. , Adhesion can not meet the requirements and other problems, to achieve the effect of reducing energy consumption, improving weather resistance, and protecting the environment

Active Publication Date: 2013-09-25
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two major shortcomings in the current water-based metallic flash paint, one is that the quick-drying performance after coating cannot meet the requirements of the above-mentioned 3C1B process, which affects the implementation of the 3C1B process; the other is that the current water-based metallic flash paint and intermediate coating The adhesion of paint and varnish cannot meet the requirements, which in turn affects the mechanical properties, chemical resistance and weather resistance of the overall car paint film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] ① Preparation of water-based acrylic resin

[0024]In the reactor, first add 2.4 parts by weight of methyl methacrylate, 1.28 parts by weight of butyl acrylate, 0.05 parts by weight of OP-100, 0.013 parts by weight of sodium dodecylbenzenesulfonate, 0.007 parts by weight of potassium persulfate, and 22 parts by weight of water 20.8 parts by weight of methyl methacrylate, 11.2 parts by weight of butyl acrylate, 5.4 parts by weight of hydroxyethyl acrylate, 0.35 parts by weight of acrylic acid, E-102.07 parts by weight, SE-10N0.6 The mixture consisting of parts by weight, 0.06 parts by weight of potassium persulfate and 33.77 parts by weight of water was added dropwise in 3 hours, then kept at 80°C for 1 hour, cooled to 30°C, and adjusted to a pH value of 7-8 to obtain a water-based acrylic resin. Its solid content is 40wt%, preserves for subsequent use;

[0025] ② Prepare the components of water-based metallic glitter paint

[0026] The amount of each component is as f...

Embodiment 2

[0033] ① Preparation of water-based acrylic resin

[0034] Same as Example 1

[0035] ② Prepare the components of water-based metallic glitter paint

[0036] The amount of each component is as follows by weight percentage: water-based acrylic resin (prepared in step ①) 12.5%, water-based acrylic emulsion BayhydrolA245712.5%, water-based polyurethane dispersion BayhydrolUH26218%, water-based amino resin Cymel3253%, anti-settling agent ViscalexHV303%, water-based Aluminum powder SBCAQE2154F2X7.5%, pH regulator N, N-dimethylethanolamine 5%, additives 1.2%, including BYK1920.6%, BYK3470.4%, BYK0930.2%, cosolvent propylene glycol ether 7%, deionized Water 40.3%, the sum of the above-mentioned components is 100%, prepare each component according to the above-mentioned ratio, and set aside;

[0037] ③Put all the water-based aluminum powder SBCAQE2154F2X into the container, add 0.6% auxiliary agent BYK192, 3% auxiliary solvent propylene glycol ethyl ether, and 6% deionized water, an...

Embodiment 3

[0043] ① Preparation of water-based acrylic resin

[0044] Same as Example 1

[0045] ② Prepare the components of water-based metallic glitter paint

[0046] The amount of each component is as follows by weight percentage: water-based acrylic resin (prepared in step ①) 10%, water-based acrylic emulsion BayhydrolA245710%, water-based polyurethane dispersion BayhydrolUH262112%, water-based amino resin Cymel3251%, anti-settling agent ViscalexHV301%, water-based aluminum powder SBCAQE2154F2X10%, pH regulator N,N-dimethylethanolamine 4%, additives 2%, including BYK1920.8%, BYK3470.8%, BYK0930.4%, co-solvent propylene glycol ethyl ether 10%, deionized water 40%, The sum of the above-mentioned components is 100%, and each component is prepared according to the above-mentioned proportions for subsequent use;

[0047] ③Put all the water-based aluminum powder SBCAQE2154F2X into the container, add 0.8% auxiliary agent BYK192, 4% auxiliary solvent propylene glycol ethyl ether, and 8% de...

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Abstract

The invention relates to an aqueous metal glossy lacquer for cars and a preparation method of the aqueous metal glossy lacquer for cars. The aqueous metal glossy lacquer is prepared from the following ingredients in percentages by weight: 10-15% of aqueous acrylic resin, 10-15% of aqueous acrylic acid emulsion, 6-12% of aqueous polyurethane dispersion, 1-3% of aqueous amino resin, 1-5% of anti-settling agent, 5-10% of aqueous aluminum powder, 4-6% of pH (Potential of Hydrogen) regulator, 0.6-2% of auxiliary, 4-10% of cosolvent and 30-50% of deionized water, wherein the sum of all the above ingredients is 100%. The preparation method of the lacquer is convenient to operate and capable of ensuring product quality. The preparation method of the lacquer is convenient to operate, and the quality of a product can be ensured. Compared with the prior art, the aqueous metal glossy lacquer provided by the invention has the characteristics of quick drying, coating repeatability, environmental friendliness, safety and certain metal texture, and is mainly applied to a car original lacquer. The 3C1B process can be used; therefore, fixed-asset investment is reduced, energy consumption is reduced, and the capacity and yield of a car production line are improved.

Description

technical field [0001] The invention relates to a water-based metallic glitter paint for automobiles and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOC for short) in traditional solvent-based coatings are the third largest source of air pollution after vehicle exhaust emissions and smog. In the automotive coating system, solvent-based metallic glitter paint is very popular because of its special metallic luster. As an automotive topcoat, its usage is roughly equal to that of natural paint. However, solvent-based metallic glitter paint contains about 80% organic solvents, which is more than natural paint, and is the main source of VOC emissions in the automotive coating industry. Water-based metallic glitter paint has become a major means of reducing VOC emissions. At present, the coating of water-based metallic flash paint for automobiles usually adopts the "3C1B process", that is, after the electrophoretic primer is applied, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/04C09D161/20C09D5/38C08F220/14C08F220/18
Inventor 刘汉功陈月珍王艳艳濮国尧
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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