A kind of high temperature resistant dipping paint and preparation method thereof

A technology of impregnating paint and high temperature resistance, applied in the direction of coating, can solve the problems of insufficient temperature resistance grade and toughness, and achieve the effect of high mechanical strength, meeting design requirements and improving thermal conductivity.

Active Publication Date: 2016-05-04
马鞍山采石矶涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature resistance grade and toughness of the cured product of this system are insufficient, so it is necessary to modify the epoxy anhydride impregnation paint system, and the cured product of the impregnation paint system can meet the requirements of temperature resistance grade and mechanical properties at the same time

Method used

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Embodiment Construction

[0012] A kind of high temperature resistant dipping paint, made of the following raw materials (kg) in parts by weight:

[0013] Aniline formaldehyde resin 34, dimethyldichlorosilane 7, acrylonitrile 5, butadiene 3, phthalic anhydride 4, boric acid 1, xylene 23, cobalt naphthenate 5, tetraethylenepentamine 3, peroxide tert-butyl valerate 2, octylphenol polyoxyethylene ether 3, 2-aminoethyl heptadecenyl imidazoline 2, diatomaceous earth 4, film-forming agent 5.

[0014] The film-forming agent is made of the following raw materials in parts by weight: silane coupling agent KH5504, 582-2 amino resin 16, polyisobutylene 4, cobalt naphthenate 2, isopropyl distearoyloxyaluminate 2. Ditetradecyl alcohol ester 5, aluminum nitride 2, nano attapulgite 2, epoxy soybean oil 4, morpholine 2;

[0015] The preparation method is as follows: mixing various materials, heating to 105-110 DEG C, stirring and reacting for 2-3 hours, and grinding to remove slag.

[0016] The preparation method of...

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PUM

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Abstract

A high-temperature resistance impregnating varnish and a preparation method thereof are disclosed. The varnish is characterized by being composed of following components in parts by weight: 30 to 34 parts of aniline formaldehyde resin, 5 to 7 parts of dimethyl dichlorosilane, 4 to 5 parts of acrylonitrile, 2 to 3 parts of butadiene, 3 to 4 parts of phthalic anhydride, 1 to 2 parts of boric acid, 20 to 23 parts of xylene, 4 to 5 parts of cobaltous naphthenate, 2 to 3 parts of tetraethylenepentamine, 1 to 2 parts of tert butyl peroxypivalate, 3 to 4 parts of polyoxyethylene octylphenol ether, 1 to 2 parts of 2-heptadecenyl-N-aminoethylimidazoline, 4 to 5 parts of diatomite and 4 to 5 parts of film forming agent. The impregnating varnish has the advantages of high-temperature resistance, high dampness resistance, acid-alkali corrosion resistance, salt smog proof, good electric insulation property and high mechanic strength. The heat conductivity of the varnish is improved, and the varnish can work at the temperature of 200 DEG C for a long period and at the temperature of 220 DEG C for a short period. The design requirements are fulfilled.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an impregnating varnish, in particular to a high-temperature resistant impregnating varnish and a preparation method thereof. Background technique [0002] Pressure impregnation is generally used in the production of motors, transformers, and wires. The workpiece is pre-baked to remove moisture and then cooled, placed in a vacuum environment to remove internal air and volatiles, relying on the gravity of the paint liquid in the vacuum and applying a certain pressure to make the paint liquid quickly penetrate and fill the inner layer of the insulating structure. This process produces a continuous, dense, pinhole-free paint film. [0003] The existing impregnating paint is made of epoxy resin as the main resin and acid anhydride as the curing agent. However, the temperature resistance grade and toughness of the cured product of this system are insufficient, and the epoxy anhydri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D161/22C09D133/20C09D7/12C09D5/25
Inventor 曹忠富
Owner 马鞍山采石矶涂料有限公司
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