Preparation method of high-strength dustproof photocuring coating

A light-curing coating, high-strength technology, used in antifouling/underwater coatings, coatings, 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: 2018-03-13
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

[0015] Example 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 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;

[0018] (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 dust-proof photocurable 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 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;

[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, 0.8 part of sodium chloride, stir well and keep away from light Preserve to obtain the dust-proof photocurable coating.

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Abstract

The invention discloses a preparation method of a high-strength dust-proof light-curing coating, which comprises the following steps: (1) trimethylolpropane triacrylate, the first part of fluorinated methacrylate, and α-hydroxyalkylbenzene (2) Mix nano-silica and nano-silver particles with mercaptopropylmethyldimethoxysilane and mix them with fluorinated methacrylate; then step (1) and step (2) The obtained liquids are mixed, and dibutyltin dilaurate, isophorone diisocyanate and sodium chloride are added to obtain the dust-proof photocurable coating. The light-curing coating prepared by the invention basically does not have the oxygen resistance phenomenon during curing, is fully cured, has excellent mechanical properties, and at the same time, the surface energy of the film layer after the coating is formed is low, and has a 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 purpose of the present invention is to propose a method for preparing a photocur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/00C09D5/16C09D7/62C09D7/63
CPCC09D4/00C09D5/16C09D5/1687
Inventor 罗奇
Owner 罗奇
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