UV (Ultraviolet) curing type anti-contamination paint

A curing type, coating technology, applied in the field of coatings, can solve the problems of expensive finished resin, insignificant anti-fouling effect, and short-lasting anti-fouling effect.

Inactive Publication Date: 2010-09-08
上海长悦涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The antifouling of UV coatings is a hot topic in the UV technology field at present. At present, the usual solutions are as follows: 1) The organic fluorine resin with strong antifouling ability and ultra-low surface energy is subjected to light curing transformation, that is Incorporating acrylate groups, which not only requires high equipment, is difficult for general enterprises to implement, but also the finished resin is expensive and cannot be used in general fields; It is not easy to increase (there will be compatibility problems after the increase), so the anti-resistance effect is not obvious; 3) Adding a leveling agent that can significantly reduce the surface tension directly in the coating is the easiest to operate, but due to the volatility of the agent, The anti-stain effect does not last long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 Preparation of straight-chain acrylate with multiple hydroxyl groups in the side chain

[0024] At 60-70°C, the hydroxyl-terminated polyether polyol (T1136, produced by Degussa, Germany, 380g) and acrylic acid (120g) were reacted under acidic conditions (PH 2-3) for about 6 hours, and toluene was added The water is evaporated by boiling to obtain a straight-chain acrylate with multiple hydroxyl groups in the side chain.

Embodiment 2

[0025] The preparation of embodiment 2 coating of the present invention

[0026] Add the straight-chain acrylate with multiple hydroxyl groups in the side chain obtained in Example 1 into the silicone acrylate, stir to mix, then add monomers to adjust the viscosity, and then add photoinitiators, additives, etc., Obtain UV curable type antifouling paint, each component content is as follows (accounting for the weight percent of paint gross weight):

[0027] Linear acrylate with multiple hydroxyl groups in the side chain 32%

[0028] Sadoma CN990 Silicone Acrylate 10%

[0029] Hydroxyethyl Methacrylate 12%

[0030] TMPTA 25%

[0031] Photoinitiator 1173 5%

[0032] Auxiliary (leveling agent: slip agent = 1:1) 1%

[0033] Fumed silica 15%

[0034] The conventional paint performance and antifouling performance of the obtained coating were tested, and the test results are shown in Table 1.

[0035] Among them, the stain resistance test is tested by the following method:

[...

Embodiment 3

[0037] The preparation of embodiment 3 coating of the present invention

[0038] According to the method in embodiment 2, prepare coating of the present invention with following proportioning (accounting for coating gross weight percentage by weight):

[0039] Linear acrylate with multiple hydroxyl groups in the side chain 35%

[0040] Changxing EM6154B80 silicone acrylate 5%

[0041] Hydroxyethyl Methacrylate 15%

[0042] PETA 20%

[0043] Photoinitiator 184 4%

[0044] Auxiliary (leveling agent: slip agent = 1:1) 1%

[0045] Fumed silica 15%

[0046] Aluminum oxide 5%

[0047] The conventional paint performance and antifouling performance of the obtained coating were tested, and the antifouling performance of the obtained coating was tested. The test results are shown in Table 1.

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Abstract

The invention relates to UV curing type anti-contamination paint which comprises straight-chain acrylic ester, organic silicon acrylic ester, a mono-functional monomer, a multifunctional monomer, a light trigger, an auxiliary agent, a filler and the like, wherein the side chain of the straight-chain acrylic ester is provided with a plurality of hydroxyls. The paint not only has higher anti-contamination performance, but also can avoid some defects of the prior art.

Description

technical field [0001] The present invention relates to a coating. Specifically, the present invention relates to a UV-curable antifouling coating. Background technique [0002] The anti-fouling of UV coatings is a hot topic in the UV technology field at present. At present, the usual solutions are as follows: 1) The organic fluororesin with strong anti-fouling ability and ultra-low surface energy is subjected to light-curing transformation, that is, the organic fluorine resin Incorporating acrylate groups, this not only requires high equipment requirements, it is difficult for general enterprises to achieve, and the finished resin is expensive and cannot be used in general fields; It is not easy to improve (there will be compatibility problems after the increase), so the anti-resistance effect is not obvious; 3) Adding a leveling aid that can significantly reduce the surface tension directly in the coating is the easiest to operate, but due to the volatility of the additiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12C09D5/16
Inventor 叶剑钦马星雪周建国
Owner 上海长悦涂料有限公司
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