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Water-based uv coating with temporary protection effect and its preparation method and application

A temporary protection, water-based technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of wasting time, cost, energy consumption, and low production capacity, and achieve excellent wear resistance, improve product yield, and high hardness Effect

Active Publication Date: 2020-04-07
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a water-based UV coating with temporary protection effect and its preparation method and application to solve the technical problems of low production capacity, waste of time and cost and serious energy consumption in the existing temporary protection technology

Method used

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  • Water-based uv coating with temporary protection effect and its preparation method and application

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Embodiment 1

[0060] The present embodiment provides a kind of water-based UV paint with temporary protective effect, comprising the following components in mass percent: 58% of carboxy-modified water-soluble polyurethane acrylate, 8% of ethoxylated trimethylolpropane triacrylate, Dipropylene glycol methyl ether 5%, N,N-dimethylethanolamine 0.2%, water-based wetting agent 0.8%, water-based defoamer 0.3%, photoinitiator 2.5%, adhesion promoter 1%, matting powder 3%, Water 21.2%; wherein, the photoinitiator is a mixture of 1-hydroxycyclohexyl phenyl ketone, benzophenone and 2,4,6-trimethylbenzoyl phenyl phosphonic acid ethyl ester.

[0061] The above-mentioned water-based UV paint preparation method with temporary protective effect may further comprise the steps:

[0062] While dispersing, add the above water-based polyurethane acrylate resin, ethoxylated trimethylolpropane triacrylate, dipropylene glycol methyl ether, N,N-dimethylethanolamine, water-based wetting agent, water-based defoamer,...

Embodiment 2

[0066] The present embodiment provides a kind of water-based UV paint with temporary protective effect, comprising the following components in mass percent: 55% of carboxy-modified water-soluble polyurethane acrylate, 11% of ethoxylated trimethylolpropane triacrylate, Dipropylene glycol methyl ether 5%, N,N-dimethylethanolamine 0.2%, water-based wetting agent 0.8%, water-based defoamer 0.3%, photoinitiator 2.5%, adhesion promoter 1%, matting powder 3%, Water 21.2%; wherein, the photoinitiator is a mixture of 1-hydroxycyclohexyl phenyl ketone, benzophenone and 2,4,6-trimethylbenzoyl phenyl phosphonic acid ethyl ester.

[0067] The preparation method of the water-based UV paint with temporary protective effect in this embodiment and the application on the metal substrate are the same as in Example 1.

Embodiment 3

[0069]The present embodiment provides a kind of water-based UV paint with temporary protective effect, comprising the following components in mass percentage: 58% of carboxy-modified water-soluble polyurethane acrylate, 8% of propoxylated glycerin triacrylate, dipropylene glycol methyl ether 5%, N,N-dimethylethanolamine 0.2%, water-based wetting agent 0.8%, water-based defoamer 0.3%, photoinitiator 1.5%, adhesion promoter 1%, matting powder 3%, water 22.2%; Wherein, the photoinitiator is 1-hydroxycyclohexyl phenyl ketone, benzophenone and ethyl 2,4,6-trimethylbenzoyl phenyl phosphonate.

[0070] The preparation method of the water-based UV paint with temporary protective effect in this embodiment and the application on the metal substrate are the same as in Example 1.

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Abstract

The invention discloses a water-based UV coating having a temporary protection effect as well as a preparation method and application of the coating. The water-based UV coating comprises the followingcomponents in percentages by mass: 30-60% of water-based UV resin, 5-12% of a water-based UV monomer, 2-5% of a film forming auxiliary agent, 0.1-0.5% of a pH value adjusting agent, 0.1-1% of a water-based wetting agent, 0.1-0.5% of a water-based defoaming agent, 1-5% of a photoinitiator, 0.5-2% of an adhesion promoter, 0.5-5% of matting powder, and the balance of water, wherein the water-based UV resin is carboxyl-modified water-soluble polyurethane acrylate. The above water-based UV coating having the temporary protection effect disclosed by the invention has good adhesion and high hardness; and after the coating is sprayed on the surface of a metal substrate to form a temporary protection film, the formed film can effectively suppress an occurrence of badness such as scratches and burrs in the mechanical manufacturing processes such as drilling, punching and milling of metal workpieces, and is easy to take off at normal-temperature immersion and in an alkaline film taking off liquid, and the coating improves production efficiency.

Description

technical field [0001] The invention relates to the field of water-based paints, in particular to a water-based UV paint with a temporary protective effect and a preparation method and application thereof. Background technique [0002] Temporary protective film refers to a layer of film coated on the surface of the workpiece to be processed to prevent the surface of the workpiece from being scratched during machining. In recent years, with the rapid development of the electronics industry, more and more electronic products use metal workpieces and glass workpieces, and the requirements for their production are also increasing; when machining workpieces such as drilling, punching, and milling, it is easy to The workpiece is scratched, resulting in large burrs, scratches and other defects, which affect the appearance and use of the final product. Therefore, it is necessary to coat a layer of temporary protective film on the surface of the workpiece to be processed to prevent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/20
CPCC09D5/20C09D175/14
Inventor 黄巨波李平李玉良王卫国缪培凯吕国强杨波凌云剑
Owner HUNAN SOKAN NEW MATERIAL
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