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High-strength self-cleaning photocureable coating

A light-curing coating and self-cleaning technology, applied in the direction of anti-fouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of easy oxygen resistance effect, limited performance, poor curing of coatings, etc., to achieve Improve the uniformity and mechanical properties, eliminate the effect of oxygen resistance, and promote the effect of connection strength

Inactive Publication Date: 2018-03-23
罗奇
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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 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;

[0013] (3) Mix the liquid obtained in step (1) with the liquid obtained in step (2), add 0.01 part of dibutyltin dilaurate, 0.06 part of isophorone diisocyanate, 0.5 part of sodium chloride, stir well and keep away from light Preserve to obtain the high-strength self-cleaning 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 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;

[0017] (3) Mix the liquid obtained in step (1) with the liquid obtained in step (2), add 0.1 part of dibutyltin dilaurate, 0.6 part of isophorone diisocyanate, 0.8 part of sodium chloride, stir well and keep away from light Preserve to obtain the high-strength self-cleaning light-curing coating.

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Abstract

The invention discloses a high-strength self-cleaning light-curing coating, which comprises the following components: trimethylolpropane triacrylate, fluorinated methacrylate, mercaptopropylmethyldimethoxysilane, dilauric acid dimethoxysilane Butyl tin, nano silica, sodium chloride photoinitiator. The present invention basically does not have the phenomenon of oxygen resistance during curing, is fully cured, has excellent mechanical properties, and has dustproof, antibacterial and other effects, and has self-cleaning ability.

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 photocurable coating with excell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D7/62C09D5/14
CPCC09D4/00C09D5/14
Inventor 罗奇
Owner 罗奇
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