Dustproof photocureable coating

A light-curing paint and dust-proof technology, applied in antifouling/underwater paints, coatings, paints containing biocides, etc. Eliminate oxygen barrier effect, improve uniformity and mechanical properties, and promote the effect of connection strength

Inactive Publication Date: 2016-11-16
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

[0011] (1) Stir and mix 10 parts of trimethylolpropane triacrylate, 2 parts of fluorinated methacrylate, and 0.04 part of α-hydroxyalkylphenone at 10°C;

[0012] (2) Add 3 parts of nano-silica with a particle size of 50nm into tetrahydrofuran, use ultrasonic dispersion for 10 minutes, then add 1 part of mercaptopropylmethyldimethoxysilane, heat up to 110°C and reflux for 30 minutes, and then continue 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;

[0013] (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 Dust-proof light-curing coating.

Embodiment 2

[0015] (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;

[0016] (2) Add 5 parts of nano-silica with a particle size of 100nm into tetrahydrofuran, use ultrasonic dispersion for 30 minutes, then add 3 parts of mercaptopropylmethyldimethoxysilane, heat up to 100°C and reflux for 60 minutes, and then continue Heat up and concentrate the liquid to 1 / 2 volume, add 5 parts of fluorinated methacrylate when the temperature is lowered to 40°C, and stir evenly;

[0017] (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 Dust-proof light-curing coating.

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Abstract

The invention discloses a dustproof photocureable coating. The dustproof photocureable coating is prepared from trimethylolpropane triacrylate, fluorinated methacrylate, 3-mercaptopropylmethyldimethoxysilane, dibutyltin dilaurate, nano-silica and a photoinitiator. According to the dustproof photocureable coating, the oxygen inhibition phenomenon hardly exists in the curing process, curing is sufficient, and mechanical properties are excellent; meanwhile, the coating is low in surface energy after being formed and has the dustproof effect.

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 provide a photocurable coating with good c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D5/16C09D7/12
CPCC09D4/00C09D5/16C09D7/62C09D7/63C09D7/67C08F222/103
Inventor 黄波
Owner CHENGDU NASHUO TECH
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