Anti-pollution-flashover insulating coating applied to electrical equipment

A technology for insulating coatings and electrical equipment, applied in anti-fouling/underwater coatings, coatings, paints containing biocides, etc., which can solve the problems of low mechanical properties, low mechanical tear strength and long curing time of anti-pollution flashover coatings. To achieve the effect of dosage optimization, excellent self-cleaning performance, and improved hydrophobicity

Inactive Publication Date: 2018-01-09
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of the antifouling flashover coating obtained by thi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: An anti-pollution flashover insulating coating applied to electrical equipment, prepared from the following raw materials in parts by weight: 35 parts of silicone rubber, 25 parts of fluorosilicone resin, 13 parts of titanate coupling agent, nano molecular sieve 5 parts, 2 parts of diatomaceous earth, 8 parts of zinc oxide, 0.03 parts of tributyl phosphate, 4 parts of ethyl acetate, 3 parts of phosphate-modified acrylic emulsion, 0.3 parts of fatty alcohol polyoxyethylene ether, perfluoroalkyl ether 0.002 parts of potassium sulfonate salt F-53, 0.5 parts of N-dodecyl ethanolamine, and 40 parts of propylene glycol methyl ether acetate.

[0028] The silicone rubber of the present invention can be selected from 107 room temperature vulcanized silicone rubber.

[0029] In this embodiment, a method for preparing an anti-pollution flashover insulating coating applied to electrical equipment comprises the following steps:

[0030] Step S1: Weigh zinc oxide, nano mo...

Embodiment 2

[0037] Example 2: An anti-pollution flashover insulating coating applied to electric equipment, prepared from the following raw materials in parts by weight: 35 parts of silicone rubber, 25 parts of fluorosilicone resin, 13 parts of titanate coupling agent, nano molecular sieve 5 parts, 2 parts of diatomaceous earth, 8 parts of zinc oxide, 0.03 parts of tributyl phosphate, 4 parts of ethyl acetate, 3 parts of phosphate-modified acrylic emulsion, 0.3 parts of fatty alcohol polyoxyethylene ether, perfluoroalkyl ether Carboxylate potassium salt FC-5 0.002 parts, N-dodecyl ethanolamine 0.5 parts, propylene glycol methyl ether acetate 40 parts.

[0038] A preparation method for an anti-pollution flashover insulating coating applied to electrical equipment, comprising the following steps:

[0039] Step S1: Weigh zinc oxide, nano molecular sieve and diatomaceous earth, dry at constant temperature, and set aside;

[0040] Step S2: Weigh 0.0003 parts by weight, 0.0002 parts by weight ...

Embodiment 3

[0046] Example 3: An anti-fouling flashover insulating coating applied to electric equipment, prepared from the following raw materials in parts by weight: 38 parts of silicone rubber, 30 parts of fluorosilicone resin, 16 parts of titanate coupling agent, nano molecular sieve 3 parts, 3 parts of diatomaceous earth, 7 parts of zinc oxide, 0.03 parts of tributyl phosphate, 6 parts of ethyl acetate, 2 parts of phosphate-modified acrylic emulsion, 0.3 parts of polyethylene glycol 400, perfluoroalkyl ether sulfonate Potassium acid potassium salt F-530.003 parts, 0.5 parts of hydroxymethyl diethyl triamine, 45 parts of propylene glycol methyl ether acetate.

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Abstract

The invention provides an anti-pollution-flashover insulating coating applied to electrical equipment, and belongs to the technical field of a coating combination. The coating is made from, by weightpart, 30-40 parts of silicone rubber, 20-30 parts of fluorosilicon resin, 10-20 parts of a titanate coupling agent, 2-7 parts of a nanometer molecular sieve, 1-5 parts of diatomite, 5-10 parts of zincoxide, 0.01-0.06 part of tributyl phosphate, 2-7 parts of ethyl acetate, 2-7 parts of a phosphate-modified acrylic acid emulsion, 0.1-0.5 part of a dispersant, 0.001-0.004 part of a surfactant, 0.2-0.8 part of a curing agent, and 30-50 parts of propylene glycol methyl ether acetate. The composite coating has the average static contact angle no less than 150 degrees and the lowest static contact angle no less than 143 degrees. The coating is excellent in mechanical property and self-cleaning, and adapts to pollution-flashover prevention of electrical equipment.

Description

technical field [0001] The invention belongs to the technical field of coating compositions, and in particular relates to an anti-pollution flashover insulating coating applied to power equipment. Background technique [0002] Pollution flashover refers to the deposition of dust particles in the atmosphere on the surface of insulators that have been operating outdoors for a long time, gradually forming a pollution layer. The substance gradually dissolves in water to form a conductive film on the surface of the insulator, thereby increasing the surface conductivity and reducing the insulation performance, resulting in flashover discharge on the wet surface of the insulator (referred to as pollution flashover). The three main factors that cause pollution flashover are insulator surface pollution, pollution layer wetting and voltage action. The pollution flashover process mainly includes four stages: insulator surface pollution, pollution layer surface moisture, dry area and lo...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D183/08C09D5/25C09D5/16C09D7/61C09D7/20
Inventor 张露江彭勇方强华巩持恒
Owner 国网河南省电力公司超高压公司
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