A kind of UV curing powder coating and preparation method thereof

A technology of powder coatings and pigments, applied in powder coatings, polyether coatings, coatings, etc., can solve the problems of decreased impact resistance of coatings, cracks in the aging layer, and no air purification, etc., to achieve fast curing speed and high Promote the effect of using value and low price

Active Publication Date: 2021-07-30
韶关长悦高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional powder coating has more or less poor aging resistance, the aging layer is prone to cracks, the material is brittle, the mechanical properties will be reduced, the impact resistance of the coating will be reduced, the adhesion is poor, the bending performance is poor and the weather resistance is insufficient, Technical defects that shorten their service life
[0004] Chinese patent CN200910184341.8 "a super-weather-resistant powder coating and its preparation method and application" discloses the preparation of super-weather-resistant powder coatings by extruding and blending conventional weather-resistant polyester resins and FEVE fluorocarbon resins. However, due to the poor compatibility of the mixed system prepared by extrusion, the system has defects such as low gloss and poor impact performance, which is not conducive to market promotion.
However, its base material is still polyester, which does not change the weakness of polyester powder coatings. The performance of aging resistance and high temperature resistance needs to be further improved, and it has no function of purifying air. In addition, the antimony used in the polymerization process Catalysts or tin-based catalysts, both will have an impact on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A UV curable powder coating, comprising the following components by weight: 35 parts of silicone-based polyphenylene ether resin, 5 parts of fluvastatin methyl ester, 6-chloropurine nucleoside ionized modified adenine 5 parts, benzoin 0.3 parts, (R)-3,3′-di-9-anthracenyl-1,1′-di-2-naphthol modified Ti-Ge-Ce-O-B 3 parts, glycyrrhizic acid 0.3 parts , 20 parts of heavy calcium carbonate, 1 part of ordinary inorganic pigment, 0.3 part of polyacrylate leveling agent, 0.2 part of sodium hexametaphosphate.

[0037] The particle diameter of described ground calcium carbonate is 900 meshes.

[0038] The preparation method of the silicone-based polyphenylene ether resin comprises the steps of: mixing 1 kg of diethylstilbestrol, 2,7-dichloro-3,6-bis[[(1,1-dimethylethyl) dimethyl Add 1.96kg of silicon]oxyl]-9H-xanthene-9-one, 0.3kg of sodium carbonate, and 0.1kg of p-hydroxyanisole into a three-necked flask connected with a water separator, and then add N,N-dimethyl 10 kg of met...

Embodiment 2

[0045] A UV curable powder coating, comprising the following components by weight: 37 parts of silicone-based polyphenylene ether resin, 6 parts of fluvastatin methyl ester, 6-chloropurine nucleoside ionized modified adenine 6 parts, 0.4 parts of benzoin dimethyl ether, (R)-3,3′-di-9-anthracenyl-1,1′-di-2-naphthol modified Ti-Ge-Ce-O-B 3.5 parts, licorice 0.35 parts of acid, 23 parts of talcum powder, 2 parts of inorganic ceramic pigments, 0.4 parts of cellulose acetate leveling agent, and 0.3 parts of sodium polycarboxylate.

[0046] The particle size of the talcum powder is 950 mesh.

[0047] The preparation method of the silicone-based polyphenylene ether resin comprises the steps of: mixing 1 kg of diethylstilbestrol, 2,7-dichloro-3,6-bis[[(1,1-dimethylethyl) dimethyl Silicon] oxygen group]-9H-xanthene-9-one 1.96kg, potassium carbonate 0.4kg, methyl hydroquinone 0.13kg are added in the there-necked bottle connected with water separator, add N-methylpyrrolidone 12kg and T...

Embodiment 3

[0054] A UV curable powder coating, comprising the following components by weight: 40 parts of silicone-based polyphenylene ether resin, 6.5 parts of fluvastatin methyl ester, 6-chloropurine nucleoside ionized modified adenine 6.5 parts, benzoin ethyl ether 0.45 parts, (R)-3,3′-di-9-anthracenyl-1,1′-di-2-naphthol modified Ti-Ge-Ce-O-B 4 parts, glycyrrhizic acid 0.4 parts 25 parts, 25 parts of light calcium carbonate powder, 3 parts of organic pigment, 0.5 part of cellulose acetate leveling agent, 0.35 part of sodium hexametaphosphate.

[0055] The particle diameter of described light calcium carbonate powder is 1000 orders.

[0056] The preparation method of the silicone-based polyphenylene ether resin comprises the steps of: mixing 1 kg of diethylstilbestrol, 2,7-dichloro-3,6-bis[[(1,1-dimethylethyl) dimethyl Add 1.96kg of silicon]oxyl]-9H-xanthene-9-one, 0.6kg of cesium carbonate, and 0.15kg of nitroxide free radical piperidinol into a three-necked flask connected with a wa...

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Abstract

The invention discloses a UV curable powder coating, which is characterized in that it is made of the following components by weight: 35-45 parts of silicone-based polyphenylene ether resin, 5-8 parts of fluvastatin methyl ester, 6 5-8 parts of chloropurine nucleoside ionized modified adenine, 0.3-0.6 parts of photoinitiator, (R)-3,3'-2-9-anthracenyl-1,1'-2-2- Naphthol modified Ti-Ge-Ce-O-B 3-5 parts, glycyrrhizic acid 0.3-0.5 parts, inorganic filler 20-30 parts, pigment 1-5 parts, leveling agent 0.3-0.7 parts, dispersant 0.2- 0.5 servings. The invention also discloses a preparation method of the UV curable powder coating. The UV curable powder coating disclosed by the invention has excellent comprehensive performance, fast curing speed, good storage stability, good weather resistance and aging resistance, high coating film hardness, scrub resistance, good performance stability, long service life, and easy production and use. Safety and environmental protection.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a UV curing powder coating and a preparation method thereof. Background technique [0002] With the continuous and stable growth of my country's economy and the continuous improvement of people's living standards, the demand for improving the living environment and improving one's own physical fitness is becoming more and more urgent, and the performance requirements for decoration materials are also getting higher and higher. As a common Decorative decoration materials, coatings not only need to provide excellent anti-corrosion protection and decorative performance for the coated substrate, but also need to have good weather resistance, good performance stability, and good environmental protection. As a common coating, powder coating is widely used in building materials, electrical appliances, home improvement and automobile industries because of its high production efficiency, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D171/12C09D5/03
CPCC09D5/033C09D171/12C08K13/06C08K9/04C08K3/38
Inventor 张礼国
Owner 韶关长悦高分子材料有限公司
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