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Environment-friendly water-based double-component automobile refinishing paint middle coating and preparation method thereof

An automotive refinishing, two-component technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as physical health hazards and environmental pollution of painting workers, and reduce VOC emissions, reduce pollution, and be easy to polish. Effect

Active Publication Date: 2013-02-13
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, solvent-based intermediate coating primers are widely used in the automotive repair market. The solvent content of traditional solvent-based repair paints is often above 40%. These volatile organic compounds (VOCs) enter the atmosphere, which will cause environmental pollution and affect the coating. Hazard to workers' health

Method used

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  • Environment-friendly water-based double-component automobile refinishing paint middle coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of an environment-friendly water-based two-component automotive refinish paint primer, the method comprising the following process steps:

[0025] (1) First add water-based resin (Bayhydrol A 145) 35%, water-based wetting agent (Surfynol 104BC) 0.8%, water-based dispersant (TEGO Dispers 715W) 1.3%, water-based corrosion inhibitor (SER-AD FA 179) 0.4%, Calcium carbonate 41%, deionized water 11.5% were added sequentially under stirring and mixed evenly for 10 minutes, then ground to a fineness of less than 20um to prepare component A;

[0026] (2) 8% of polyisocyanate resin (Bayhydrol XP 304) and 2% of solvent (butyl acetate) were added in sequence and stirred evenly; component B was obtained.

[0027] Components A and B are used after mixing evenly during construction.

Embodiment 2

[0029] A preparation method of an environment-friendly water-based two-component automotive refinish paint primer, the method comprising the following process steps:

[0030] (1) Water-based resin (Bayhydrol A 2546) 38%, water-based wetting agent (Surfynol 104BC) 0.7%, water-based dispersant (TEGO Dispers 740W) 1.4%, water-based corrosion inhibitor (SER-AD FA 179) 0.4%, 38% titanium dioxide and 11.5% deionized water were added in sequence under stirring and mixed evenly for 10 minutes, then ground to a fineness of less than 20um to prepare component A;

[0031] (2) 8% of polyisocyanate resin (Bayhydrol XP 304) and 2% of solvent (butyl acetate) were added in sequence and stirred evenly; component B was obtained.

[0032] Components A and B are used after mixing evenly during construction.

Embodiment 3

[0034] A preparation method of an environment-friendly water-based two-component automotive refinish paint primer, the method comprising the following process steps:

[0035] (1) First add water-based resin (Bayhydrol A 2227 / 1) 37%, water-based wetting agent (Surfynol 104BC) 0.6%, water-based dispersant (TEGO Dispers 745W) 1.5%, water-based corrosion inhibitor (SER-AD FA 179) 0.4 %, calcium carbonate 39%, and deionized water 11.5% were added in sequence under stirring and mixed evenly for 10 minutes, then ground to a fineness of less than 20um to prepare component A;

[0036] (2) 8% of polyisocyanate resin (Bayhydrol desmodur 3100) and 2% of solvent (butyl acetate) were added in sequence and stirred evenly; component B was obtained.

[0037] Components A and B are used after mixing evenly during construction.

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Abstract

The invention relates to environment-friendly water-based double-component automobile refinishing paint middle coating and a preparation method thereof. The varnish comprises a component A and a component B, wherein the component A comprises the following components in percentage by weight: 25 to 55 percent of water-based resin, 0.1 to 2.0 percent of water-based wetting agent, 0.5 to 3.0 percent of water-based dispersing agent, 0.1 to 1 percent of water-based anticorrosive agent and 30 to 60 percent of filler; and the component B comprises the following components in percentage by weight: 5 to 15 percent of polyisocyanate dispersoid and 1 to 5 percent of solvent. Compared with the prior art, the invention has the advantages that the environment-friendly water-based double-component automobile refinishing paint middle coating is not harmful to a human body, environment-friendly and the like.

Description

technical field [0001] The invention relates to a car repair paint, in particular to an environment-friendly water-based two-component car repair paint primer and a preparation method thereof. Background technique [0002] At present, solvent-based intermediate coating primers are widely used in the automotive repair market. The solvent content of traditional solvent-based repair paints is often above 40%. These volatile organic compounds (VOCs) enter the atmosphere, which will cause environmental pollution and affect the coating. Hazard to workers' health. With the improvement of people's attention to health, automobile refinish paint is also developing towards health and environmental protection, and the market demand for water-based automobile refinish paint primer is gradually increasing. Contents of the invention [0003] The purpose of the present invention is exactly to provide a kind of environment-friendly water-based two-component automotive refinish paint inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12
Inventor 朱忠敏尤先锋
Owner DONGLAI COATING TECH SHANGHAI