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Super-hard organic silicone hydrophobic glass resin and preparation method thereof

A technology of hydrophobic glass and silicone, which is applied in the direction of coating, etc., can solve the problems of inability to obtain a wide range of popularization and application, and the high price of polysilazane, and achieve no cracking and pulverization, high light transmittance, and film formation uniform effect

Inactive Publication Date: 2018-03-23
HUNAN QIWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because polysilazane is expensive, these methods can't obtain wide application

Method used

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  • Super-hard organic silicone hydrophobic glass resin and preparation method thereof
  • Super-hard organic silicone hydrophobic glass resin and preparation method thereof
  • Super-hard organic silicone hydrophobic glass resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of superhard organosilicon hydrophobic glass resin of the present invention, preparation method is as follows:

[0021] a) Synthesis of active silicone resin: 50 parts of liquid hydrogen-containing polymethylhydrogen siloxane (active hydrogen content 1.0%), 10 parts of vinyl MQ silicone resin (vinyl content 2.2%), 5-10 parts Parts polyhydroxypolysiloxane (viscosity 30mm 2 / s), 2 parts of amino-terminated silicone oil (viscosity 100mm 2 / s), 300 parts of xylene were added to the reactor, stirred evenly and heated to 50°C, then 0.5 parts of chloroplatinic acid solution with a platinum concentration of 1500ppm, 06 parts of KH560 were added, and the reaction continued at 50°C for 5 hours; b) polysilicon Azane-modified copolymerization: add 1 part of chloroplatinic acid solution with a platinum concentration of 1500 ppm, 10 parts of hydrogen-containing polymethylhydrogen siloxane to the reactor and heat to 80 ° C, slowly drop into the reactor through the feeding port...

Embodiment 2

[0026] A kind of superhard organosilicon hydrophobic glass resin of the present invention, preparation method is as follows:

[0027] a) Synthesis of active silicone resin: 50 parts of liquid hydrogen-containing polymethylhydrogen siloxane (active hydrogen content 1.5%), 10 parts of vinyl MQ silicone resin (vinyl content 1.5%), 8 parts more Hydroxypolysiloxane (viscosity 100mm 2 / s), 5 parts of amino silicone oil (viscosity 100mm 2 / s), 200 parts of petroleum ether (90~120°C) were added to the reactor, stirred evenly and heated to 60°C, then 1.5 parts of platinum complex solution with a platinum concentration of 1500ppm, 0.9 parts of KH550 were added, and the reaction was continued at 60°C for 3 Hours; b) polysilazane modified copolymerization: add 0.5 parts of platinum complex solution with platinum concentration of 1500ppm to the reactor, 10 parts of hydrogen-containing polymethylhydrogen siloxane and heat to 75 ° C, through the feeding port to Slowly add 10 parts of alkyl...

Embodiment 3

[0029] A kind of superhard organosilicon hydrophobic glass resin of the present invention, preparation method is as follows:

[0030] a) Synthesis of active silicone resin: 50 parts of liquid hydrogen-containing polymethylhydrogen siloxane (active hydrogen content 0.8%), 7 parts of vinyl MQ silicone resin (vinyl content 2.5%), 8 parts Hydroxypolysiloxane (viscosity 100mm 2 / s), 4 parts of amino silicone oil (viscosity 200mm 2 / s), 250 parts of diluent were added into the reactor, stirred evenly and heated to 50°C, then 1.5 parts of platinum complex solution with a platinum concentration of 1500ppm, 1 part of methyltriethoxysilane coupling agent were added, at 55°C Continue to react for 3 hours; b) polysilazane modified copolymerization: add 0.8 parts of platinum complex solution with platinum concentration of 1500ppm to the reactor, 10 parts of hydrogen-containing polymethylhydrogen siloxane and heat to 65 ° C, pass Slowly add 15 parts of polysilazane dropwise from the feed ...

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Abstract

The invention relates to super-hard organic silicone hydrophobic glass resin and a preparation method thereof. Under the catalysis of a Karsted catalyst, active silicon-hydrogen bonds and carbon-carbon double bonds in hydrogen-containing polymethylhydrogensiloxane, vinyl MQ silicone resin, polyhydroxy polysiloxane, and amino silicone oil are crosslinked, and active silicon-hydrogen bonds and hydroxyl or amino in the hydrogen-containing polymethylhydrogensiloxane, the vinyl MQ silicone resin, the polyhydroxy polysiloxane, and the amino silicone oil are crosslinked, so that three-dimensional network-shaped organic silicone resin is formed, and then in the presence of a catalyst, polysilazane reacts with hydroxyl, amino or carbon-carbon double bonds in the organic silicone resin through active -Si-H to be grafted on the molecular chain of the organic silicone resin. The glass resin provided by the invention can be self-catalyzed and cured at a room temperature, and has uniform film formation without cracking or powdering; the film has good water resistance and stain resistance, and the contact angle of water and the film formed after the glass resin coats the surface of a tile can reach 130 degrees; the transparency is good, and the light transmittance is up to 80%; and the hardness of the film is high, the pencil hardness is up to 7H or above, and the film can withstand the hightemperature of 300 DEG C.

Description

technical field [0001] The invention relates to a silicone resin, in particular to a superhard silicone hydrophobic glass resin and a preparation method thereof, belonging to the technical field of silicone modification. technical background [0002] Hydrophobic coatings are widely used in anti-graffiti of buildings, anti-fouling of marine ships, easy cleaning of high-speed trains, and protection of automobile paint surfaces. The transparent high-hardness hydrophobic coating does not affect the original appearance and optical characteristics of the substrate, and can also provide good physical protection for the substrate, and has a wider application field. The characteristic of hydrophobicity requires that the materials selected in the coating preparation process must have the characteristics of low surface energy, while the transparency requires that the materials have high transmittance in the visible light range. At present, the main hydrophobic transparent coating mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00C09D187/00
CPCC08G81/00C09D187/00
Inventor 李丽娟
Owner HUNAN QIWEI TECH CO LTD
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