Yellowing-resistant elastic paint and its preparation method, use method and application

A hand-feeling paint and anti-yellowing technology, which is applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of not being able to meet the yellowing resistance and environmental protection at the same time, and achieve low cost, high drying activity, and stability good sex effect

Inactive Publication Date: 2018-01-19
CHINA PAINT MFG CO SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the existing organotin or organobismuth in the elastic feel paint cannot meet the yellowing resistance performance and environmental protection at the same time, the embodiment of the present invention provides a yellowing-resistant feel paint and its preparation method

Method used

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  • Yellowing-resistant elastic paint and its preparation method, use method and application
  • Yellowing-resistant elastic paint and its preparation method, use method and application
  • Yellowing-resistant elastic paint and its preparation method, use method and application

Examples

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preparation example Construction

[0054] In one embodiment, the preparation method of the anti-yellowing paint at least includes the following steps:

[0055] Disperse the weighed film-forming resin, environmental drier, and leveling agent, add matting powder while dispersing, and disperse for 5-10 minutes until the dispersion is uniform, and then add the weighed ultraviolet light absorber to the above-mentioned Disperse in the container for 5-10 minutes until the dispersion is uniform. So far, the preparation of the above-mentioned anti-yellowing paint is completed.

[0056] Specifically, during dispersion treatment, each component is placed in a dispersion container, and dispersed at a stirring speed of 500-1000 r / min.

[0057] The anti-yellowing hand feel paint of the present invention adopts the above preparation method, adopts step-by-step and layered dispersion according to the particle diameters of the matting powder and the ultraviolet light absorber, effectively avoids the phenomenon of uneven disper...

Embodiment 1～3 and comparative example 1～2

[0068] For convenience of comparison, the formulations of Examples 1-3 and Comparative Examples 1-2 are listed in Table 1.

[0069] The preparation method of the coating of concrete each embodiment and comparative example is:

[0070] According to the formulas of Examples 1-3 and Comparative Examples 1 and 2 in Table 1, add each component in turn and stir evenly to form a mixed coating, dilute with isobutyl acetate, and the weight ratio is A component: curing agent: acetic acid The ratio of isobutyl ester is 100:10~15:20~40.

[0071] Table 1 embodiment 1~3 and comparative example 1~2 formula components

[0072]

[0073]

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Abstract

The invention relates to the technical field of elastic paint and discloses yellowing-resistant elastic paint and its preparation method, use method and application. The yellowing-resistant elastic paint comprises a component A and a component B. The component A comprises, by weight, 18-53% of film-forming resin, 1-2% of an eco-friendly dryer, 0.1-0.5% of a leveling agent, 40-70% of an organic solvent, 8-23% of matting powder and 0.1-0.5% of a UV absorber. The component B is a curing agent. A weight ratio of the component A to the component B is 100: 10-15. The eco-friendly dryer is organic zinc. The yellowing-resistant elastic paint has the characteristics of yellowing resistance, high activity of drying, good stability and environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of elastic feel paint, in particular to a yellowing-resistant feel paint and its preparation, use and application. Background technique [0002] Due to the improvement of environmental protection requirements, the use of organotin environmental protection drier has been restricted in many coatings. Therefore, researchers have developed other environmentally friendly drier to replace organotin. The best substitute in the formulation of elastic touch paint is organic bismuth environmental protection drier. [0003] Organic bismuth-based environmental protection drier has the characteristic of lower reactivity than organic tin. However, in the use of light-colored backgrounds such as white workpieces or white primers, the surface of the paint film will turn yellow if there are oxidants or acidic substances in the topcoat coated with transparent elastic touch paint, while organotin-based touch This is not the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D7/20C09D7/63C09D7/80
Inventor 朱国庆洪伟强刘峰吴晓斌
Owner CHINA PAINT MFG CO SHENZHEN
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