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A kind of fluorinated polyether siloxane compound, its preparation method and coating composition

A technology of fluorinated polyether siloxane and siloxane compound, used in polyurea/polyurethane coatings, antifouling/underwater coatings, coatings, etc. Improve adhesion and wear resistance

Active Publication Date: 2015-10-07
塔威新材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN1703441A discloses the combination of perfluoropolyether silane polycondensate and a non-fluorine compound, which is used to improve the adhesion of the composition to the substrate, thereby improving the durable waterproof, antifouling and oilproof performance of the composition, but it is passed through alone The method of physical blending and adding siloxane compounds to increase the adhesion is generally effective
[0007] CN1849359 discloses a silane compound of fluorinated polyether isocyanate and a composition thereof for treating the surface of a hard substrate to improve the waterproof, antifouling and dustproof performance of the substrate, but the waterproof performance and adhesion of the product of the invention need to be Further improve

Method used

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  • A kind of fluorinated polyether siloxane compound, its preparation method and coating composition
  • A kind of fluorinated polyether siloxane compound, its preparation method and coating composition
  • A kind of fluorinated polyether siloxane compound, its preparation method and coating composition

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Fluorinated Polyether Silicone CompoundsX 1 preparation of

[0086]The first step of reaction: Put Fluorolink1500 (15g, 0.01mol) and HDI (0.84g, 0.005mol) into the installed magnetic stirrer and 100ml Erlenmeyer flask, heat the mixture to 60°C and keep it for 4 hours , to obtain the initial product HOCH 2 CF 2 O(CF 2 CF 2 O) p (CF 2 O) q CF 2 CH 2 OCONH(CH 2 ) 6 HNOCOCH 2 CF 2 (CF 2 O) q (OCF 2 CF 2 ) p OCF 2 CH 2 OH, where p is 8 and q is 9, the completion of the reaction is determined by titrating the isocyanate value.

[0087] The second step reaction: After the first step reaction is completed, add 3-isocyanate propyl trimethoxysilane (8.20 g, 0.04 mol) and add 0.0015 g of catalyst tetrabutyl titanate, and heat the mixture to 60°C. And keep it for 6 hours, and determine the completion of the reaction by titrating the hydroxyl value. After the reaction is completed, 50ml of isopropanol can be used for separation to obtain the product X 1 :

[...

Embodiment 2

[0091] Fluorinated Polyether Silicone CompoundsX 2 preparation of

[0092] The first step of reaction: put Fluorolink2500 (25g, 0.01mol) and HDI (0.84g, 0.005mol) into the installed magnetic stirrer and 100ml Erlenmeyer flask, the mixture is heated to 60°C and kept for 4 hours, The initial product was obtained: HO(CH 2 CH 2 O) m CH 2 CF 2 O(CF 2 CF 2 O) p (CF 2 O) q CF 2 CH 2 (OCH 2 CH 2 ) m OCONH(CH 2 ) 6 HNO CO(CH 2 CH 2 O) m CH 2 CF 2 (OCF 2 ) q (OCF 2 CF 2 ) P OCF 2 CH 2 (OCH 2 CH 2 ) m OH, where p is 10, q is 12, and m is 8, the completion of the reaction is determined by titrating the isocyanate value.

[0093] The second step reaction: After the first step reaction is completed, 3-isocyanate propyl trimethoxysilane (8.2 g, 0.04 mol) is added, and the catalyst tetra-n-butyl titanate is added, the mixture is heated to 60 ° C, and Keep it for 6 hours, and determine the completion of the reaction by titrating the hydroxyl value. After the ...

Embodiment 3

[0095] Fluorinated Polyether Silicone CompoundsX 3 preparation of

[0096] The first step of reaction: In the installed magnetic stirrer and 100ml Erlenmeyer flask, put Fluorolink1500 (15 grams, 0.01mol) and IPDI (1.11 grams, 0.005mol), the mixture is heated to 60 ° C, and kept for 6 hours, The completion of the reaction was determined by titrating the isocyanate value.

[0097] The second reaction: After the first step reaction is completed, 3-isocyanate propyltrimethoxysilane (8.2 g, 0.04 mol) is added, and the catalyst dibutyltin dilaurate is added, and the mixture is heated to 60 ° C and kept for 8 Hours, the completion of the reaction was determined by titrating the hydroxyl value. After the reaction is completed, 50ml of isopropanol can be used for separation to obtain the product X 3 .

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Abstract

The invention relates to a fluorinated polyether siloxane compound, a preparation method and a coating composition thereof. The fluorinated polyether siloxane compound can be represented by the following formula shown as the specification, and can be used for forming transparent materials including glass, lenses, electronic product displays and the like, and an antifouling, waterproof, chemical-reagent-resisting and abrasion-resisting transparent protective coating on a textile material.

Description

technical field [0001] The invention relates to a polyether siloxane compound, its preparation method and coating composition, in particular to a fluorinated polyether siloxane compound, its preparation method and coating composition. Background technique [0002] With the development of the electronics industry, especially the promotion and application of smart phones, large-screen TVs, and smart tablet computers, these products have now entered thousands of households and companies around the world. However, with the promotion of various touch screen technologies, due to the high-frequency use of these products, the display surface of the product is easy to get dirty, scratched, and corroded by some chemical solvents. Therefore, the waterproof, anti-fouling, and anti-chemical agents of these products are improved. , Improve wear resistance, etc. is very necessary. At present, in the protection of electronic product display screens, many people use the method of sticking f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/71C08G18/64C08G18/73C08G18/50C08G18/76C08G18/79C09D175/04C09D5/16C09D5/00
CPCC08G18/5015C08G18/718C08G18/73C08G18/755C08G18/7671C08G18/792C09D5/1662C09D175/08
Inventor 李泽阳侯章宇范建军林江滨柳成良
Owner 塔威新材料科技(上海)有限公司
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