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Graphene modified organic silicon coating as well as preparation method and application thereof

A technology of graphene modification and organosilicon coating, applied in the direction of coating, etc., can solve the problems of low strength of high-silica glass fiber, low strength of high-silica glass fiber, and decrease of surface area, etc., to achieve wear resistance and heat resistance Improved performance, good ozone resistance and insulation, good insulation effect

Inactive Publication Date: 2017-05-10
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The strength of high-silica glass fibers in the prior art is very low. Due to the use of acid leaching technology in the preparation process, many holes will remain on the surface of the prepared finished product, forming defects, and the surface area decreases, which makes the strength of high-silica glass fibers further improved. reduce

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 5 parts by mass of graphene and 3.5 parts of alkylphenol polyoxyethylene ether and mix them in 0.3 parts of water, and carry out ultrasonic dispersion for 120 minutes to obtain an aqueous solution of graphene; then 50 parts of MP-50E, 3 parts of sodium polycarboxylate Salt, 3 parts of hydroxypropyl cellulose and 0.2 part of tributyl phosphate are mixed and stirred evenly, continue to add 35 parts of kaolin, uniformly stirred and dispersed to obtain a silicone mixture; the uniformly dispersed graphene aqueous solution is added to the silicone mixture, A graphene-modified silicone coating is obtained.

[0028] Put the glass batch material into the electric melting furnace for melting at 1600°C, and divide it into several blocks through the material strands, and then cool the blocks; put the cooled blocks into the wire drawing furnace for secondary processing at 1150°C Melt and wire-draw for the first time, and then make a silk tube; put the silk tube in hydrochloric ...

Embodiment 2

[0030] Take 2 parts of graphene and 1.4 parts of alkylphenol polyoxyethylene ether and mix them in 42.95 parts of water, and carry out ultrasonic dispersion for 80 minutes to obtain graphene aqueous solution; then 30 parts of MP-50E, 1.5 parts of sodium polycarboxylate Salt, 2 parts of hydroxypropyl cellulose and 0.15 part of tributyl phosphate are mixed and stirred evenly, continue to add 20 parts of kaolin, and stir and disperse evenly to obtain a silicone mixture; add the uniformly dispersed graphene aqueous solution into the silicone mixture, A graphene-modified silicone coating is obtained.

[0031] Put the glass batch material into the electric melting furnace for melting at 1450°C, and divide it into several blocks through the material strands, and then cool the blocks; put the cooled blocks into the wire drawing furnace for secondary processing at 800°C Melting and drawing for the first time, and then making silk tubes; acid leaching the silk tubes in 10% hydrochloric ...

Embodiment 3

[0033] Take 0.1 part of graphene and 0.07 part of alkylphenol polyoxyethylene ether and mix them in 78.23 parts of water, and carry out ultrasonic dispersion for 30 minutes to obtain graphene aqueous solution; then 15 parts of MP-50E, 0.5 parts of sodium polycarboxylate Salt, 1 part of hydroxypropyl cellulose and 0.1 part of tributyl phosphate are mixed and stirred evenly, continue to add 5 parts of kaolin, stir and disperse evenly to obtain a silicone mixture; add the uniformly dispersed graphene aqueous solution into the silicone mixture, A graphene-modified silicone coating is obtained.

[0034] Put the glass batch material into the electric melting furnace for melting at 1300°C, and divide it into several blocks through the material strands, and then cool the blocks; put the cooled blocks into the wire drawing furnace for secondary processing at 200°C Melting and drawing for the first time, and then making silk tubes; acid leaching the silk tubes in 5% hydrochloric acid at...

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Abstract

The invention discloses a graphene modified organic silicon coating as well as a preparation method and application thereof. The coating is mainly prepared from the following materials in parts by mass: 0.1-5 parts of graphene, 15-50 parts of an organic silicon emulsion, 5-35 parts of kaolin, 0.1-0.2 part of defoaming agents, 1-3 parts of thickening agents, 0.5-3 parts of dispersants and 0.07-3.5 parts of alkylphenol polyoxyethylene ether. The invention also discloses the preparation method and application of the coating. According to the graphene modified organic silicon coating, high strength and flexibility of a graphene material are used for making up for the defect of low strength of organic silicon; meanwhile, the organic silicon also has high ozone resistance and electrical insulation; the advantages of the graphene and the organic silicon are complementary, so that the prepared graphene modified organic silicon coating can be used to coat the surface of a material and can achieve high strength, high temperature resistance and weather resistance, ozone resistance and high electric insulation; compared with ordinary high-silica glass fiber, the strength, abrasion resistance and heat resistance of graphene modified high-silica glass fiber prepared by coating glass fiber with the graphene modified organic silicon coating are all improved to some extent.

Description

technical field [0001] The invention relates to a coating, in particular to a graphene-modified organic silicon coating and a preparation method and application thereof. Background technique [0002] High silica glass fiber belongs to special glass fiber, which is usually made of sodium borosilicate glass fiber leached with hot acid to remove impurities other than silicon, and then sintered. The strength of high silica glass fiber is very low, only 1 / 10 of E glass fiber, but its high temperature resistance is very good, it can be used for a long time at 900 ℃, and can withstand high temperature of 1200 ℃ for a short time, because it is a kind of Excellent high-temperature and corrosion-resistant materials, it has been applied in national defense, aerospace, black and non-ferrous metal melt purification and filtration. [0003] The strength of high-silica glass fibers in the prior art is very low. Due to the use of acid leaching technology in the preparation process, many ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/12
CPCC09D183/04C08L2201/08C08L2205/035C09D7/61C09D7/63C09D7/65
Inventor 刘小艳刘静李田雨朱杰胡钰泉田甜左俊卿沈欣欣乔洋夏苏鲁
Owner HOHAI UNIV
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