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Protective coating for high-voltage and high-frequency power equipment

A technology for protective coatings and power equipment, applied in anti-corrosion coatings, fire-resistant coatings, radiation-absorbing coatings, etc., can solve the problems of coating stability and film-forming effect, high production cost, poor dispersion, etc.

Inactive Publication Date: 2019-01-08
HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent application number 201610551635.X discloses a graphene-type anti-radiation coating, which improves the electromagnetic shielding performance of the coating by adding graphene, conductive fillers and absorbing materials, but the production cost of this anti-radiation material is high , and the dispersion of graphene and metal micropowder in the resin emulsion of the paint is poor, which will affect the stability and film-forming effect of the paint, and it is difficult to achieve good protective performance and radiation protection effect at the same time

Method used

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  • Protective coating for high-voltage and high-frequency power equipment
  • Protective coating for high-voltage and high-frequency power equipment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of anti-radiation additive comprises the steps:

[0027] (1) Prepare inorganic fillers according to the number of parts by mass: 45 parts of α-alumina, 37 parts of nano-silicon dioxide, 8 parts of nano-silicon carbide, and 15 parts of nano-calcium carbonate. The above inorganic filler components are added to the ball mill for ball milling and mixing. Add modifier dropwise to the mixture during ball milling. The amount of modifier added dropwise is 6% of the mass of the mixed filler. After ball milling, the solvent is evaporated at a temperature of 88°C to obtain the required superhard core;

[0028] (2) According to the mass ratio of 2:1:1:5:4, the nanoscale particles of lanthanum oxide, samarium oxide, thulium oxide, yttrium oxide and strontium carbonate are added to the hydrochloric acid solution for dissolution, and the amount of particles added is 4% of the hydrochloric acid solution. %, add 3.6wt% polyvinyl alcohol to the solution to dissolve...

Embodiment 1

[0033] A protective coating for high-voltage and high-frequency power equipment, characterized in that, according to the parts by mass, the components of the protective coating include: 60 parts of pure acrylic emulsion, 13 parts of fluorosilicone resin, 11 parts of polyvinylpyrrolidone, 12 parts of filler, 4 parts of radiation additives, 1.3 parts of sodium nitrite, 0.6 parts of hydroxypropyl methyl cellulose ether, 0.2 parts of nonylphenol polyoxyethylene ether, 0.1 part of antiseptic and antibacterial agent, and 0.1 part of defoamer.

[0034] Wherein, the filler component contains titanium dioxide, lithium-based bentonite and palygorskite powder, and the mass ratio of the three is 5:2:1.

[0035] The preservative is isothiazolinone; the defoamer is a silicone defoamer.

[0036] The preparation method of the protective paint provided by the present embodiment is:

[0037] In parts by mass, add pure acrylic emulsion and polyvinylpyrrolidone into the dispersing tank and stir ...

Embodiment 2

[0039] A protective coating for high-voltage and high-frequency power equipment, characterized in that, according to the mass parts, the components of the protective coating include: 70 parts of pure acrylic emulsion, 18 parts of fluorosilicone resin, 16 parts of polyvinylpyrrolidone, 15 parts of filler, anti 8 parts of radiation additives, 1.7 parts of sodium nitrite, 1.4 parts of hydroxypropyl methylcellulose ether, 0.6 parts of nonylphenol polyoxyethylene ether, 0.3 parts of antiseptic and antibacterial agent, and 0.7 part of defoamer.

[0040] Wherein, the filler component contains titanium dioxide, lithium-based bentonite and palygorskite powder, and the mass ratio of the three is 5:2:1.

[0041] The preservative is thiophanate-methyl; the defoamer is a mineral oil defoamer.

[0042] The preparation method of the protective paint provided by the present embodiment is:

[0043] In parts by mass, add pure acrylic emulsion and polyvinylpyrrolidone into the dispersing tank a...

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Abstract

The invention relates to the technical field of power protection materials, and particularly relates to a protective coating for high-voltage and high-frequency power equipment. The protective coatingcomprises the following components: a pure acrylic emulsion, fluorosilicone resin, polyvinylpyrrolidone, fillers, an anti-radiation additive, sodium nitrite, hydroxypropyl methyl cellulose ether, nonylphenol polyoxyethylene ether, an antiseptic bacteriostat and a defoamer, wherein the structure of the anti-radiation additive comprises a superhard base core composed of inorganic fillers, anti-radiation functional particles distributed on a surface of the base core, and a polyamide-imide film layer coating an outer layer of the anti-radiation functional particles; the fillers contain titanium dioxide, lithium-based bentonite and palygorskite powder; the antiseptic is isothiazolinone or thiophanate methyl; and the defoamer is a silicone defoamer or a mineral oil defoamer. The coating provided by the invention has advantages of high film strength, good adhesion, relatively good corrosion, rust and corrosion resistances, and excellent anti-radiation performance.

Description

technical field [0001] The invention relates to the technical field of electric protection materials, in particular to a protective coating for high-voltage and high-frequency electric equipment. Background technique [0002] Power equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment is mainly power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment is mainly transmission lines of various voltage levels, transformers, contactors and more. In view of safety considerations, the installation and construction of power supply equipment needs to be exposed outdoors, so these equipment need to be protected. Conventional protection includes anti-rust and anti-corrosion and safety isolation. Anti-rust and anti-corrosion is to reduce the oxidation and corrosion of equipment caused by natural factors. Improve the service life of equipment. Safety isol...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D183/08C09D139/06C09D101/28C09D5/08C09D5/32C09D7/61C09D7/63C09D7/65
CPCC09D133/04C08K2003/2227C08K2003/265C08K2201/011C08L2201/08C08L2205/035C09D5/08C09D5/18C09D5/32C09D7/61C09D7/63C09D7/65C08L83/08C08L39/06C08L1/284C08K13/06C08K9/10C08K3/22C08K3/36C08K3/34C08K3/26
Inventor 孔令翠
Owner HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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