Yellowing-resistant solvent-free quick-drying bright white finish paint and preparation method thereof

A solvent-free, anti-yellowing technology, applied in the field of white topcoat, can solve the problems of hardness and fullness not meeting customer requirements, long production cycle, difficult deep curing and other problems, achieve excellent scratch resistance, reduce environmental pollution and improve the production environment

Inactive Publication Date: 2020-09-08
安徽名士达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PU bright white finish used by furniture companies emits a large amount of VOC during the coating process, which has become an important source of air pollution. It does not meet the increasingly stringent environmental protection requirements and is constantly restricted. In order to meet environmental protection requirements, the government encourages furniture companies Water-based paints, high-solid paints, UV paints and other environmentally friendly paints are used, but water-based bright white topcoats have coating disadvantages such as low hardness, low gloss, and easy to cause prickly heat, especially because they are greatly affected by environmental factors, and it is difficult to realize industrialization. Control, long production cycle, reduce coating efficiency, hardness and fullness can not meet customer requirements, can not meet the coating requirements of high-end furniture
Although UV glossy topcoats can achieve industrialized high-efficiency production, the penetration of ultraviolet light in white products is significantly weakened, making it difficult to implement deep curing, resulting in poor glossy white coating effects and narrow product scope. These problems have always plagued manufacturers. And engineering and technical personnel also limit the application of water-based bright white topcoat and UV bright white topcoat in the field of furniture coating

Method used

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  • Yellowing-resistant solvent-free quick-drying bright white finish paint and preparation method thereof
  • Yellowing-resistant solvent-free quick-drying bright white finish paint and preparation method thereof
  • Yellowing-resistant solvent-free quick-drying bright white finish paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of anti-yellowing solvent-free fast-drying glossy white topcoat is made of the following components by weight: main paint: curing agent=100:3-4; wherein, the main paint is made of the following components by mass percentage: polyacrylic 62.6% methyl acrylate resin, 35% titanium dioxide, 0.6% anti-sedimentation agent, 1% dispersant, 0.6% defoamer, 0.2% leveling agent, solid content of anti-yellowing non-solvent quick-drying bright white topcoat 100%; polymethyl methacrylate resin is Degaroute465 resin, which is a small molecular substance with extremely low viscosity, can quickly wet the substrate, and has excellent leveling properties. The resin contains a large amount of highly active non-toxic Saturated double bonds, through the initiation of benzoyl peroxide, free radical polymerization occurs, and all of them are quickly cured to form a macromolecular network structure, ensuring excellent performance of the coating film after film formation, forming a high har...

Embodiment 2

[0038] A kind of anti-yellowing solvent-free fast-drying glossy white topcoat is made of the following components by weight: main paint: curing agent=100:3-4; wherein, the main paint is made of the following components by mass percentage: polyacrylic 65% methyl acrylate resin, 32.5% titanium dioxide, 0.6% anti-sedimentation agent, 1% dispersant, 0.5% defoamer, 0.4% leveling agent, solid content of anti-yellowing non-solvent quick-drying bright white topcoat is 100%; the polymethyl methacrylate resin is Degaroute465 resin, the titanium dioxide is nano-scale rutile titanium dioxide, the defoamer is a modified siloxane defoamer suitable for solvent-free coating systems, and the dispersant is modified A copolymer dispersant with a permanent block structure. The leveling agent is made by mixing polyether modified silicone leveling agent and fluorine modified polyacrylic acid leveling agent at a mass ratio of 1:2.

[0039] refer to Figure 1-2 , in order to better demonstrate the p...

Embodiment 3

[0046] A kind of anti-yellowing solvent-free fast-drying glossy white topcoat is made of the following components by weight: main paint: curing agent=100:3-4; wherein, the main paint is made of the following components by mass percentage: polyacrylic 70% methyl acrylate resin, 27.8% titanium dioxide, 0.4% anti-sedimentation agent, 0.8% dispersant, 0.6% defoamer, 0.4% leveling agent, solid content of anti-yellowing non-solvent quick-drying bright white finish is 100%; the polymethyl methacrylate resin is Degaroute465 resin, the titanium dioxide is nano-scale rutile titanium dioxide, the defoamer is a modified siloxane defoamer suitable for solvent-free coating systems, and the dispersant is modified A copolymer dispersant with a permanent block structure. The leveling agent is made by mixing polyether modified silicone leveling agent and fluorine modified polyacrylic acid leveling agent at a mass ratio of 1:2.

[0047] refer to Figure 1-2 , in order to better demonstrate the ...

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Abstract

The invention discloses yellowing-resistant solvent-free quick-drying bright white finish paint and a preparation method thereof. The yellowing-resistant solvent-free quick-drying bright white finishpaint is prepared from the following components in parts by weight: 100 parts of main paint and 3 to 4 parts of curing agent, wherein the main paint is prepared from components in percentage by mass as follows: 60%-70% of polymethyl methacrylate resin, 25%-35% of titanium dioxide, 0.4%-0.6% of an anti-settling agent, 0.8%-1% of a dispersing agent, 0.4%-0.6% of an antifoaming agent and 0.2%-0.4% ofa leveling agent, and the curing agent is benzoyl peroxide. The paint has the advantages of ultralow temperature curing performance, quick curing, higher production efficiency, excellent weather resistance, no solvent addition, no VOC emission and excellent scratch resistance, reduces the environmental pollution, and achieves the coating effect of high hardness, flatness, fullness, smoothness andbrightness like a mirror.

Description

technical field [0001] The invention relates to the technical field of the white finish, in particular to a yellowing-resistant, solvent-free, fast-drying bright white finish and a preparation method thereof. Background technique [0002] With the development of society, human beings have higher and higher requirements for the coating effect of furniture, and consumers pursue the fullness and decoration of the coating film. The furniture painted with bright white topcoat has a beautiful and plump vision, which fully interprets the concise and lively modern fashion atmosphere, enhances the sense of value of the furniture, and brings consumers unique noble enjoyment and the taste of pursuing a healthy life. Favored by the market and loved by customers. However, the PU bright white finish used by furniture companies emits a large amount of VOC during the coating process, which has become an important source of air pollution. It does not meet the increasingly stringent environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/61C09D7/45C09D7/47C09D7/65
CPCC08K2003/2241C08K2201/011C08L2205/02C08L2205/035C09D133/12C09D7/45C09D7/47C09D7/61C09D7/65C08L83/04C08L83/12C08L33/04C08K13/04C08K3/22C08K7/26
Inventor 李相权吴浩
Owner 安徽名士达新材料有限公司
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