Cationic photo-cured fluorine-containing organosilicon composite coating and preparation method thereof

A composite coating, cationic technology, applied in the field of coatings, can solve the problems of difficult to achieve high performance requirements of coatings, limited application scope of materials, poor compatibility of coating components, etc., to achieve good flexibility, prevent volatilization, and increase compatibility. sexual effect

Inactive Publication Date: 2010-07-14
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic fluorine monomers have anti-fouling properties, but are easy to volatilize and have poor compatibility with coating components, making it difficult to meet the high performance requirements of coatings
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Method used

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  • Cationic photo-cured fluorine-containing organosilicon composite coating and preparation method thereof
  • Cationic photo-cured fluorine-containing organosilicon composite coating and preparation method thereof
  • Cationic photo-cured fluorine-containing organosilicon composite coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] (1) Charge 100 parts by weight of hydrogen-containing silicone oil (0.18% hydrogen content), 22 parts of dodecafluoroheptyl methacrylate and 120 parts of toluene into a reactor equipped with a stirrer, a dropping funnel and a thermometer, Under the protection of nitrogen, heat and stir to 120°C, then add 0.013 parts of chloroplatinic acid catalyst and react for 4 hours; then at 90°C, add 15 parts of allyl glycidyl ether, react for 4 hours, remove the solvent under reduced pressure And unreacted substances to prepare cationic light-curable silicone.

[0038] IR test analysis result: Si-H characteristic absorption peak of raw material (2160cm -1 ) Disappeared; the characteristic absorption peak of cationic light-curing silicone: C=O(1720cm -1 ), C-F(1185cm -1 ), Si-CH 3 (1260cm -1 , 800cm -1 ), Si-O-Si (1018-1099cm -1 ), epoxy group (910cm -1 ).

[0039] (2) First add 30 parts by weight of cationic light-curing silicone into the container; then sequentially a...

Example Embodiment

[0041] Example 2

[0042] (1) Put 100 parts by weight of hydrogen-containing silicone oil (0.22% hydrogen content), 26 parts of hexafluorobutyl acrylate and 120 parts of toluene into a reactor equipped with a stirrer, a dropping funnel and a thermometer. Under heating and stirring to 110 ℃, then add 0.015 parts of chloroplatinic acid catalyst and react for 3.5 hours; then at 85 ℃, add 13 parts of allyl glycidyl ether, react for 5 hours, remove the solvent and unreacted under reduced pressure Material, prepared cationic light-curable silicone.

[0043] (2) First add 50 parts by weight of cationic light-curing silicone into the container; then add 100 parts of bisphenol A epoxy resin E-51, 50 parts of aliphatic epoxy polyethylene glycol diglycidyl ether, 5 parts in sequence Cationic photoinitiator triarylsulfonium salt, auxiliary agent (1 part leveling agent BYK-358, 1 part defoaming agent BYK-055, 1 part surface wetting agent BYK-2700), every time a reaction material is added, Aft...

Example Embodiment

[0045] Example 3

[0046] (1) Put 100 parts by weight of hydrogen-containing silicone oil (0.43% hydrogen content), 117 parts of hexafluorobutyl acrylate and 200 parts of toluene into a reactor equipped with a stirrer, a dropping funnel and a thermometer. Under heating and stirring to 116 ℃, then add 0.05 parts of chloroplatinic acid catalyst, react for 5 hours; then at 85 ℃, add 15 parts of allyl glycidyl ether, react for 4 hours, remove the solvent and unreacted under reduced pressure Material, prepared cationic light-curable silicone.

[0047] (2) First add 20 parts by weight of cationic light-curing silicone into the container; then add 50 parts of bisphenol A epoxy resin E-54, 2 parts of cationic photoinitiator diaryliodonium salt, auxiliary agent (0.2 1 part leveling agent BYK-306, 0.3 part defoaming agent BYK-080, 0.5 part surface wetting agent BYK-2700), add each reaction material and stir evenly, then add the next reaction material until The components are completely dis...

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Abstract

The invention discloses a cationic photo-cured fluorine-containing organosilicon composite coating and a preparation method thereof. The composite coating comprises cationic photo-cured fluorine-containing organosilicon, an epoxy resin, a cationic photoinitiator and an auxiliary agent. The coating of the invention has excellent flexibility and impact resistance, and strong water resistance and dirt resistance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a cationic light-curing fluorine-containing organic silicon composite coating and a preparation method thereof. Background technique [0002] UV curing technology is widely used in the fields of coatings, inks, adhesives, photoresists, and printing materials. It has the characteristics of fast curing, low energy consumption, no environmental pollution, and excellent coating performance. Among them, cationic light curing, as a new curing technology, has the advantages of no oxygen inhibition, small curing volume shrinkage, strong adhesion to metal plastics, and difficult termination of the reaction. Organic fluorine monomers have anti-fouling properties, but are easy to volatilize and have poor compatibility with coating components, making it difficult to meet the high performance requirements of coatings. In the prior art, the organic fluorine and silicone components contained in the pai...

Claims

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Application Information

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IPC IPC(8): C08G77/385C09D183/08C09D163/00C09D163/02
Inventor 刘伟区唐春怡
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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