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Ultraviolet photocureable coating and preparation method thereof

A light-curing coating and ultraviolet technology, which is applied in the direction of fire-resistant coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems that the fire-proof and heat-insulation requirements cannot be met, and achieve excellent mechanical strength and stability, and good wetting Sexuality and dispersibility, good effect of dispersibility

Inactive Publication Date: 2016-05-04
张力元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Han Hongzhe used o-cresol aldehyde epoxy acrylate and water-based polyurethane acrylate for hybrid curing, and modified it with a silane coupling agent. The improved thermosetting resin coating has good heat resistance and elasticity, but for higher Fire and heat insulation requirements cannot be met

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of ultraviolet photocurable coating, the formula of described coating is as follows:

[0019] o-cresol novolac epoxy acrylate 35%

[0020] Waterborne Polyurethane 15%

[0021] 2-Hydroxyethyl methacrylate 15%

[0022] 2-Hydroxy-2-methylphenylpropan-1-one 1.4%

[0023] Dimethicone 8.6%

[0024] water 30%.

[0025] Correspondingly, the present invention also provides a kind of preparation method of ultraviolet photocurable coating, described method comprises:

[0026] (1) Dissolve o-cresol novolac epoxy acrylate, water-based polyurethane dissolved in 2-hydroxyethyl methacrylate, 2-hydroxy-2-methylphenylpropane-1-one, polydimethylsiloxane Alkanes are evenly mixed, and deionized water is added to stir to make an emulsion;

[0027] (2) Add PH regulator butyl ethanolamine to the emulsion, stir and disperse at 30°C for 30 minutes, put it in an oven at 50°C for 30 minutes to obtain a composite coating;

[0028] (3) The composite coating is cured under ultraviolet l...

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Abstract

The invention relates to a photocureable coating, in particular to an ultraviolet photocureable coating. The coating is prepared from 15% of o-cresol formaldehyde epoxy acrylate, 30% of cationic waterborne polyurethane, 7.5% of methacrylic acid-2-hydroxyethyl ester, 1.8% of benzophenone, 7.5% of cresyl diphenyl phosphate, 0.5% of polydimethylsiloxane and 27.7% of water. Correspondingly, the invention provides a preparation method of the ultraviolet photocureable coating. The composite coating prepared through the method is an ultraviolet photocureable waterborne novolac epoxy / waterborne polyurethane fireproof coating, the stability and dispersity of the photocureable coating can be improved, and the photocureable coating has good flame-retardant performance, is high in production efficiency and can be applied to buildings, woodware and other base materials after being modified.

Description

technical field [0001] The invention relates to photocurable coatings, in particular to an ultraviolet photocurable coating and a preparation method thereof. Background technique [0002] Photocurable coatings mainly refer to a new type of coating that can be rapidly cross-linked and cured to form a film under ultraviolet light irradiation. Due to its rapid curing and environmental friendliness, it has become recognized by the world's coatings industry and most management agencies. Since its inception, it has been expanded from being only used for wood coating to a large number of substrates such as plastics, paper, metals, ceramics, etc. Since the 1990s, light curing has achieved large-scale production in China, and domestic light curing The annual growth rate of coatings has been maintained at double digits, and it is growing at a faster rate. Now China has developed into the third largest producer of radiation-cured products in the world after the United States and Japan,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/04C09D183/04C09D7/12C09D5/18
CPCC09D163/10C08L2205/03C09D5/18C09D7/63
Inventor 张力元
Owner 张力元