Method used for preparing nanometer ceramic anti-contamination flashover coating

An anti-pollution flashover coating and nano-ceramic technology, applied in the field of coatings, can solve the problems of loss of anti-pollution flashover, easy damage, anti-fouling, loss of water resistance, etc., and achieve the effect of good water resistance and avoiding extremely easy damage.

Inactive Publication Date: 2019-08-23
成都今天化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-fouling flashover coating with silicone rubber as the film-forming material still has many deficiencies in use, such as easy loss of water resistance (it will be lost after 72 hours in water), poor mechanical strength, and extremely easy to damage during line and equipment maintenance. ;Since silicone rubber antifouling flashover coatings generally use organotin as a catalyst, organotin accelerates the degradation of silicone rubber under heat or ultraviolet radiation, and "back sticking" occurs. Once "back sticking" occurs on the surface of antifouling flashover coatings, it is very easy to Adhesion of dust makes it lose its anti-fouling and waterproof properties, and even completely loses the function of anti-fouling flash

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 30 parts of nano-silica, 1 part of acetic acid, and 10 parts of octadecyltrimethoxysilane, mix thoroughly through a high-speed disperser, add 1 part of methyltrimethoxysilane, heat to 45 degrees, and continue stirring at high speed for 4- 6 hours, and then purified with a high-speed centrifuge to obtain nano-ceramic resin. Nano-ceramic resin, hydrophobic silicon dioxide, hydrophobic silicon micropowder, methyltrimethoxysilane, hydrophobic aluminum hydroxide, titanium dioxide, nano-silicon dioxide and iron oxide red are 45:10:12:5:15:10: The mass ratio of 11:2 is fully mixed in a high-speed disperser to obtain the finished product.

Embodiment 2

[0021] Take 40 parts of nano-silica, 1 part of acetic acid, and 15 parts of dioctyldimethoxysilane, mix thoroughly through a high-speed disperser, add 1 part of hexadecyltriethoxysilane, heat to 45 degrees, and continue to Stir for 4-6 hours, and then purify with a high-speed centrifuge to obtain nano ceramic resin. Nano-ceramic resin, hydrophobic silicon dioxide, hydrophobic silicon micropowder, methyltrimethoxysilane, hydrophobic aluminum hydroxide, 600 barium sulfate powder, 800 calcium carbonate, 3000 mesh talcum powder, nano-silica and iron oxide yellow in 55 The mass ratio of :10:8:1:15:10:10:2:5 is fully mixed in a high-speed disperser to obtain the finished product.

Embodiment 3

[0023] Take 40 parts of nano-silica, 1 part of acetic acid, and 20 parts of dimethyldimethoxysilane, mix thoroughly through a high-speed disperser, add 1 part of dodecyltrimethoxysilane, heat to 45 degrees, and continue stirring at high speed 4-6 hours, and then purified with a high-speed centrifuge to obtain nano-ceramic resin. Mix nano-ceramic resin, reflective powder, 320-mesh silicon micropowder, methyltrimethoxysilane, 80-100-mesh colored sand, 800-mesh calcium carbonate powder, 320-mesh alumina and nano-silica at 55:5:20:5 The mass ratio of :35:20:10:2 is fully mixed in a high-speed disperser to obtain the finished product.

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Abstract

The invention discloses a method used for preparing a nanometer ceramic anti-contamination flashover coating. The method comprises following steps: 1, nanometer silica is subjected to hydrophobizationtreatment with silane so as to obtain nanometer ceramic resin; 2, an ultra hydrophobic filling material, a hydrophobic fire retardant, and a pigment are added into the nanometer ceramic resin for dispersion in a high speed dispersion machine so as to obtain a finished product. The nanometer ceramic anti-contamination flashover coating is higher in hardness and mechanical strength, easily caused damage of silicone rubber anti-contamination flashover coating is avoided; and in addition, the nanometer ceramic anti-contamination flashover coating is capable of avoiding a defect of silicone rubberanti-contamination flashover coating that the waterproofness is easily lost, and better water resistance is achieved. The nanometer ceramic anti-contamination flashover coating is capable of avoidingafter tack easily caused in using of silicone rubber anti-contamination flashover coating, and the contamination resistance is obviousily better than that of silicone rubber anti-contamination flashover coating.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a method for preparing nano-ceramic antifouling flashover coatings. Background technique [0002] Anti-pollution flashover coating is a new type of electrical functional material, which is specially designed for power grids and various power generation, transmission and electricity customers to permanently and completely eliminate the hidden danger of equipment pollution flashover. Its main component is room temperature vulcanized silicone rubber. The paint is liquid, and after the paint is coated on the insulator, a layer of silicon rubber film will be formed on the surface. The film not only has excellent electrical insulation properties, but also has a special performance of extremely low surface tension, which makes the film extremely hydrophobic and hydrophobic. The hydrophobicity of the film surface can migrate to the dirty surface, making the surface deposits also Hydrophobic. Un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16
CPCC09D1/00C09D5/1687
Inventor 张宏丁超丁辉朱妍雯丁一张紫庆金辉
Owner 成都今天化工有限公司
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