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Preparation method and application of fluorosilicon antifouling and antifingerprint resin for touch screen glass

An anti-fingerprint and touch screen technology, applied in anti-fouling/underwater coatings, biocide-containing paints, coatings, etc., to achieve good anti-fouling and anti-fingerprint effects and smooth glass surfaces

Active Publication Date: 2019-12-13
SHENZHEN GUANGYE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the existing fluorosilicone resin and further improving the antifouling and antifingerprint effect, the present invention provides a preparation method and application of a fluorosilicon antifouling and antifingerprint resin for touch screen glass

Method used

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  • Preparation method and application of fluorosilicon antifouling and antifingerprint resin for touch screen glass
  • Preparation method and application of fluorosilicon antifouling and antifingerprint resin for touch screen glass
  • Preparation method and application of fluorosilicon antifouling and antifingerprint resin for touch screen glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Reactive perfluoroalkyl-substituted alkoxysiloxane oligomer R f Synthesis of Si-1

[0032] In a 50mL three-necked flask equipped with a reflux condenser, a thermometer, and a stirrer, 4.46g (0.01mol) of heptadecafluoro-1-decene (R f17 V), 1.90g (0.01mol) vinyltriethoxysilane (MTES) and 1.34g (0.01mol) tetramethyldisiloxane (D 2 H, containing Si-H 0.02mol, a hydrogen-containing siloxane oligomer with a Si-H bond functionality of 2) mixed [n(R f17 V): n(MTES):n(Si-H) molar ratio=1:1:2], mechanical stirring and mixing, heating to 70°C, then adding 50ppm complex platinum catalyst KP22 at 70°C for 10h, then Under the conditions of absolute pressure of 60mmHg and temperature of 90°C, decompression and low boiling for 10 minutes, a light brown transparent liquid is obtained, that is, the structure is shown in formula (A), R=-C 2 h 5 , R f =-C 8 f 17 The perfluoroalkyl-substituted alkoxysiloxane oligomer——1-heptadecafluorodecylethyl-2-(triethoxysilylethyl)tetramethyl...

Embodiment 2

[0039] (1) Reactive perfluoroalkyl-substituted alkoxysiloxane oligomer R f Synthesis of Si-2

[0040] In a 50mL three-necked bottle equipped with a reflux condenser, a thermometer, and a stirrer, accurately weigh 13.38g (0.03mol) of heptadecafluoro-1-decene (R f17 V), 1.90g (0.01mol) vinyltriethoxysilane (MTES) and 24.05g (0.01mol) tetramethylcyclotetrasiloxane (D 4 H , containing Si-H 0.04mol, a hydrogen-containing siloxane oligomer with a Si-H bond functionality of 4) mixed [n(R f17 V): n(MTES):n(Si-H) molar ratio=3:1:4], mechanical stirring and mixing, heating to 90°C, then adding 100ppm complex platinum catalyst KP22 to react at 90°C for 6h, then With an absolute pressure of 260mmHg and a temperature of 90°C, decompression and low boiling for 30 minutes, a light brown transparent liquid is obtained, that is, the structure is shown in formula (B), R=-C 2 h 5 , R f =-C 8 f 17 Perfluoroalkyl substituted alkoxysiloxane oligomers——1-triethoxysilylethyl-3,5,7-tri(heptade...

Embodiment 3

[0047] (1) Reactive perfluoroalkyl-substituted alkoxysiloxane oligomer R f Synthesis of Si-3

[0048] In a 50mL three-necked bottle equipped with a reflux condenser, a thermometer, and a stirrer, accurately weigh 6.92g (0.02mol) of perfluorohexylethylene (R f13 V), 2.96g (0.02mol) vinyltrimethoxysilane (MTMS) and 24.05g (0.01mol) tetramethylcyclotetrasiloxane (D 4 H , containing Si-H 0.04mol, a hydrogen-containing siloxane oligomer with a Si-H bond functionality of 4) mixed [n(R f13 V): n(MTMS):n(Si-H) molar ratio=2:2:4], mechanical stirring and mixing, heating to 85°C, and then adding 80ppm complex platinum catalyst KP22 (divinyltetramethyl Platinum disiloxane) was reacted at 85°C for 12h, and then decompressed and deboiled for 15min at an absolute pressure of 210mmHg and a temperature of 85°C to obtain a light brown transparent liquid with structures such as formulas (C) and (D) Shown, R=-CH 3 , R f =-C 6 f 13 The perfluoroalkyl-substituted alkoxysiloxane oligomer - ...

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Abstract

The invention discloses a preparation method and application of an anti-fouling and anti-fingerprint fluorosilicone resin for touch screen glass. The preparation method comprises the following steps: subjecting perfluoroalkyl-substituted alpha-olefin, vinyltrialkoxysilane and a hydrogen-containing siloxane oligomer having an Si-H-bond functionality of more than or equal to 2 to a hydrosilylation addition reaction, and synthesizing a hydrophobic and oleophobic perfluoroalkyl-substituted alkoxy siloxane oligomer (RfSi); and then hydrolyzing and co-polycondensing RfSi and orthosilicate, 1,2-bis(trialkoxysilyl) ethane to obtain a perfluoroalkyl modified fluorosilicone resin. The perfluoroalkyl modified fluorosilicone resin as well as a titanate coupling agent and an organotin catalyst are compounded into an anti-fingerprint diluent, and the anti-fingerprint diluent is sprayed on the surface of the touch screen glass and then cured to obtain the anti-fouling and anti-fingerprint effects.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to the preparation of a fluorosilicone resin for antifouling and antifingerprint of touch screen glass and its application in the aspect of antifouling and antifingerprint of glass. Background technique [0002] Fluorosilicone resin, that is, a hydrophobic and oleophobic fluorocarbon group and a hyperbranched oligomeric silsesquioxane [-(SiO 3 / 2 ) x-] structure of a class of resin general term. Fluorosilicone resin has multiple properties of fluorine and silicon materials. It not only has the water and oil repellency of the target product endowed by the fluorocarbon-based segment, but also has the unique hardness and light transmission of oligomeric silsesquioxane. Therefore, it is widely used in touch screens of tablet computers and smart phones, aircraft and automobile window glass, precision instrument panels, optical lenses, aerospace materials, and nuclear power / wind ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/24C08G77/08C08G77/06C09D183/08C09D5/16C03C17/30
CPCC03C17/30C03C2217/76C08G77/06C08G77/08C08G77/24C08K5/10C09D5/1675C09D5/1687C09D183/08
Inventor 安秋凤吕竹筠上官文超乔变莉
Owner SHENZHEN GUANGYE ELECTRONICS TECH
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