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Preparation method of self-cleaning photocureable paint

A light-curing coating and self-cleaning technology, used in antifouling/underwater coatings, coatings, and biocide-containing paints, etc. Improve the uniformity and mechanical properties, eliminate the effect of oxygen resistance, and promote the effect of connection strength

Inactive Publication Date: 2016-12-07
CHENGDU NASHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a significant disadvantage of light-cured coatings is that the curing process is prone to oxygen resistance effect, resulting in poor curing of the coating and limited performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Stir and mix 10 parts of trimethylolpropane triacrylate, 2 parts of fluorinated methacrylate, and 0.04 part of α-hydroxyalkylphenone at 10°C;

[0017] (2) Add 3 parts of nano-silica with a particle size of 50nm and 0.01 part of nano-silver particles with a particle size of 20nm into tetrahydrofuran, use ultrasonic dispersion for 10 minutes, and then add 1 part of mercaptopropylmethyldimethoxysilane , heat up to 110°C and reflux for 30 minutes, then continue to heat up and concentrate the liquid to 1 / 2 volume, add 3 parts of fluorinated methacrylate when the temperature is lowered to 30°C, and stir evenly;

[0018] (3) Mix the liquid obtained in step (1) with the liquid obtained in step (2), add 0.01 part of dibutyltin dilaurate and 0.06 part of isophorone diisocyanate, stir well and store in the dark to obtain the described Self-cleaning light-curing coating.

Embodiment 2

[0020] (1) Stir and mix 15 parts of trimethylolpropane triacrylate, 2 parts of fluorinated methacrylate, and 0.4 part of α-hydroxyalkyl phenone at 20°C;

[0021] (2) Add 0.05 parts of nano-silica with a particle size of 100nm and silver particles with a particle size of 30nm into tetrahydrofuran, use ultrasonic dispersion for 30min, then add 3 parts of mercaptopropylmethyldimethoxysilane, and heat up Reflux at 100°C for 60 minutes, then continue to heat up and concentrate the liquid to 1 / 2 volume, add 5 parts of fluorinated methacrylate when the temperature drops to 40°C, and stir evenly;

[0022] (3) Mix the liquid obtained in step (1) with the liquid obtained in step (2), add 0.1 part of dibutyltin dilaurate and 0.6 part of isophorone diisocyanate, stir well and store in the dark to obtain the described Self-cleaning light-curing coating.

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Abstract

The invention discloses a preparation method of self-cleaning photocureable paint. The method comprises the following steps of (1) mixing trimethylolpropane triacrylate, first part fluoridized metacrylic acid ester and alpha-hydroxyalkyl acetone; (2) modifying nanometer silicon dioxide, nanometer silver particles and mercaptopropyl methyl diphenylsilane, and then, mixing the modified nanometer silicon dioxide, nanometer silver particles and mercaptopropyl methyl diphenylsilane with the fluoridized metacrylic acid ester; then, mixing the liquid obtained in the step (1) and the step (2); adding dibutyltin dilaurate and isophorone diisocyanate to obtain the self-cleaning photocureable paint. The prepared photocureable paint has the advantages that during the curing, the oxygen inhibition phenomenon does not basically exist; the curing is sufficient; the physical performance is excellent; meanwhile, the dustproof effect, the antibacterial effect and the like are achieved; the self-cleaning capability is realized.

Description

technical field [0001] The present invention relates to the field of photocurable coatings. Background technique [0002] Photocurable coatings, also known as photosensitive coatings, are usually obtained by using ultraviolet light as the energy source to trigger the reaction of coating components. Photocurable coatings do not need to be heated when used, and can be used on flammable substrates such as paper, plastic, leather and wood. It can quickly solidify into a film, and its curing time is short, the curing temperature is low, and the volatile matter is low, which can save a lot of energy and resources, and is pollution-free and high-efficiency. However, a significant disadvantage of photocurable coatings is that the oxygen resistance effect is prone to occur during the curing process, resulting in poor curing of the coating and limited performance. Contents of the invention [0003] The object of the present invention is to propose a method for preparing a light-cur...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D5/14C09D5/16C09D7/12
CPCC09D4/00C09D5/14C09D5/1618C09D7/62C09D7/63
Inventor 黄波
Owner CHENGDU NASHUO TECH
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