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Anticorrosive ultraviolet curing coating with high hardness

A curing coating and anti-corrosion technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of poor corrosion resistance, long-term stability to be improved, low hardness of cured film, etc., and achieve high wear resistance , narrow particle size distribution range, and the effect of improving mechanical properties

Active Publication Date: 2015-01-07
南雄市佳明化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, water-based UV-curable coatings also have some shortcomings, such as the long-term stability of the coating dispersion system needs to be improved, the hardness of the cured film is low, and the corrosion resistance is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The high-hardness anti-corrosion UV-curable coating of the present invention, its raw material comprises the following components by weight: 70 parts of polyurethane acrylate, 13 parts of silicone acrylate, 5 parts of reactive diluent, 6 parts of photoinitiator, modified 5 parts of nano silicon dioxide, 5 parts of nano titanium dioxide, 5 parts of cosolvent, 6 parts of corrosion inhibitor, 6 parts of auxiliary agent, 50 parts of water;

[0020] Wherein, the modified nano-silica is prepared according to the following process: add 40 parts of nano-silica to 80 parts of toluene in parts by weight, add 30 parts of hydroxyethyl acrylate, 1.5 parts of p-toluenesulfonic acid after stirring for 50 minutes , 0.3 parts of p-tert-butylcatechol and 0.3 parts of β-phenylnaphthylamine, reflux for 4 hours, filter after cooling, wash and dry to obtain the modified nano-silica.

Embodiment 2

[0022] The high-hardness anti-corrosion UV-curable coating of the present invention, its raw material comprises the following components by weight: 80 parts of polyurethane acrylate, 5 parts of organosilicon acrylate, 20 parts of tripropylene glycol diacrylate, 1 part of photoinitiator, 20 parts of modified nano-silica, 2 parts of nano-titanium dioxide, 3 parts of ethanol, 0.3 parts of methyl benzotriazole, 1.7 parts of mercaptobenzothiazole, 8 parts of wetting agent, 30 parts of water;

[0023] Wherein, the photoinitiator is 1-hydroxy-cyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2,4,6-trimethylbenzoyl The combination of diphenylphosphine oxide in any ratio by weight;

[0024] The modified nano-silica was prepared according to the following process: 20 parts of nano-silica was added to 120 parts of toluene in parts by weight, and after stirring for 30 minutes, 60 parts of hydroxyethyl acrylate, 0.8 parts of p-toluenesulfonic acid, 0.6 1 part of p-tert-bu...

Embodiment 3

[0026] The high-hardness anti-corrosion UV-curable coating of the present invention, its raw material comprises the following components by weight: 79 parts of polyurethane acrylate, 10.2 parts of silicone acrylate, 4.1 parts of dipropylene glycol diacrylate, 5 parts of methacrylate , 1.3 parts of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 3.2 parts of 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 12.3 parts of modified nano-silica, 4.6 parts of nano titanium dioxide, 2 parts of butanol, 2.1 parts of propylene glycol ether, 5.3 parts of corrosion inhibitor, 3.6 parts of dispersant, 4 parts of defoamer, 45.6 parts of water;

[0027] Wherein, the corrosion inhibitor is a combination of benzotriazole, tolylbenzotriazole, and mercaptobenzothiazole in any ratio by weight;

[0028] The modified nano-silica is prepared according to the following process: 23 parts of nano-silica are added to 99 parts of toluene by weight, and after stirring for 42 minutes, 53 parts of hydroxyethyl acry...

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PUM

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Abstract

The invention discloses an anticorrosive ultraviolet curing coating with high hardness. The raw materials for preparing the coating comprise the following ingredients in parts by weight: 70-80 parts of urethane acrylate, 5-13 parts of organosilicone acrylate, 5-20 parts of an activated diluent, 1-6 parts of a photoinitiator, 5-20 parts of modified nanosilica, 2-5 parts of nano-titanium dioxide, 2-5 parts of a cosolvent, 2-6 parts of a corrosion inhibitor, 6-8 parts of an auxiliary, and 30-50 parts of water. The anticorrosive ultraviolet curing coating with high hardness, disclosed by the invention, is high in wear resistance, good in stability, and high in anticorrosive property.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-hardness anti-corrosion ultraviolet light curing coating. Background technique [0002] Water-based UV-curable coatings have become an important direction for the development of coatings due to their excellent performances such as environmental protection, fast curing speed, and energy saving, which meet people's ever-increasing environmental protection needs. However, water-based UV-curable coatings also have some shortcomings, such as the long-term stability of the coating dispersion system needs to be improved, the hardness of the cured film is low, and the corrosion resistance is poor. Therefore, the preparation of a water-based UV-curable coating with long-term stability, high hardness and strong corrosion resistance is an urgent problem to be solved at present. Contents of the invention [0003] The invention provides a high-hardness anti-corrosion ultraviolet li...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/08
CPCC08K2201/011C09D5/08C09D7/62C09D175/14C08L83/04C08K13/06C08K3/36C08K2003/2237C08K5/47C08K5/3475
Inventor 胡昌悌
Owner 南雄市佳明化工有限公司
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