Self-repair coating for mutual inductor and preparation method thereof

A self-healing, transformer technology, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve problems such as poor anti-aging ability, and achieve the effect of improving repair ability, improving anti-leakage, and improving heat resistance

Inactive Publication Date: 2017-07-18
合肥羿振电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-healing coating has good water resistance, strong adhesion and corrosion resistance, but poor anti-aging ability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A self-repairing coating for transformers, including a bottom layer, a middle layer and a surface layer, the bottom layer includes the following components by weight: 10 parts of high-temperature vulcanized silicone rubber, 3 parts of polyamide, 0.6 parts of TMG 216 organic tin laurate catalyst, 1.0 parts of 2-methyl-3-butyn-2-ol;

[0028] The middle layer includes the following components by weight: 5 parts of hydrogenated nitrile rubber, 8 parts of zinc methacrylate, and 1.2 parts of antioxidant 4010;

[0029] The surface layer includes the following components by weight: 35 parts of water-based epoxy resin, 17 parts of self-healing agent, 8 parts of titanium dioxide, and 3 parts of perfluorinated leveling agent SHYT4320;

[0030] The self-healing agent includes the following components by weight: 22 parts of glass fiber, 5 parts of diatomaceous earth, and 1 part of polycarbonate.

[0031] The above-mentioned preparation method for the self-repairing coating of the t...

Embodiment 2

[0038] A self-repairing coating for transformers, including a bottom layer, a middle layer and a surface layer, the bottom layer includes the following components by weight: 12 parts of high-temperature vulcanized silicone rubber, 2 parts of polyamide, 1.0 parts of organic tin laurate catalyst TMG 218, 0.8 parts of 2-methyl-3-butyn-2-ol;

[0039] The middle layer includes the following components by weight: 8 parts of hydrogenated nitrile rubber, 7 parts of zinc methacrylate, and 1.5 parts of antioxidant CPPD;

[0040] The surface layer includes the following components by weight: 40 parts of water-based epoxy resin, 20 parts of self-healing agent, 12 parts of titanium dioxide, and 2 parts of perfluorinated leveling agent SHYT4320;

[0041] The self-healing agent includes the following components by weight: 26 parts of glass fiber, 6 parts of diatomaceous earth, and 3 parts of polycarbonate.

[0042] The preparation method of this embodiment is the same as that of Example 1. ...

Embodiment 3

[0044] A self-repairing coating for transformers, including a bottom layer, a middle layer and a surface layer, the bottom layer includes the following components by weight: 15 parts of high-temperature vulcanized silicone rubber, 3 parts of polyamide, 1.5 parts of organic tin laurate catalyst TMG 216, 0.9 parts of 2-methyl-3-butyn-2-ol;

[0045] The middle layer includes the following components by weight: 8 parts of hydrogenated nitrile rubber, 9 parts of zinc methacrylate, and 1.8 parts of antioxidant 4010NA;

[0046] The surface layer includes the following components by weight: 48 parts of water-based epoxy resin, 20 parts of self-healing agent, 15 parts of titanium dioxide, and 3 parts of perfluorinated leveling agent SHYT4320;

[0047] The self-healing agent includes the following components by weight: 28 parts of glass fiber, 7 parts of diatomaceous earth, and 2 parts of polycarbonate.

[0048] The preparation method of this embodiment is the same as that of Example 1...

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Abstract

The invention discloses a self-repair coating for a mutual inductor and a preparation method thereof. The coating comprises a bottom layer, a middle layer and a surface layer, wherein the bottom layer comprises the following components in parts by weight: 10-20 parts of high temperature vulcanized silicone rubber, 1-3 parts of polyamide, 0.5-1.8 parts of laurate organic tin catalyst and 0.6-1.5 parts of 2-methyl-3-butyne-2-alochol; the middle layer comprises the following components in parts by weight: 5-10 pars of hydrogenated nitrile rubber, 6-12 parts of zinc methacrylate and 0.8-2.2 parts of anti-aging agent; and the surface layer comprises the following components in parts by weight: 35-50 parts of water-borne epoxy resin, 15-25 parts of self-repair agent, 8-17 parts of titanium dioxide and 1-5 parts of perfluoro flatting agent SHYT4320. The coating is safe, environmentally friendly, corrosion-resistant, high temperature resistant, anti-aging and good in self-repair performance; and the preparation method adopts a three-layer coating process, so that the structure of the coating is stable, and the service life of the mutual inductor is prolonged.

Description

technical field [0001] The invention relates to the field of transformer coatings, in particular to a self-repairing coating for transformers and a preparation method thereof. Background technique [0002] Transformer, also known as instrument transformer, is a general term for current transformer and voltage transformer. It can change high voltage into low voltage and high current into small current for measurement or protection system. Transformers can be used to isolate high-voltage systems to ensure the safety of personnel and equipment. The umbrella group on the outermost layer of the transformer is generally made of silicon rubber. After many years of use, the silicone rubber material on the surface of the silicone rubber transformer has the phenomenon of material aging and serious wear, which leads to a decrease in the surface insulation resistance of the silicone rubber transformer umbrella group, an increase in leakage current, a decrease in hydrophobicity, and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D163/00C09D151/04C09D7/12C09D7/06C09D5/08C09D7/47
CPCC08L2201/08C08L2203/20C09D5/08C09D5/18C09D7/47C09D7/61C09D7/70C09D151/04C09D163/00C09D183/04C08L77/00C08K5/05C08L69/00C08K7/14C08K3/346C08K2003/2241
Inventor 武行峰
Owner 合肥羿振电力设备有限公司
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