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A kind of organosilicon insulating dipping varnish and preparation method thereof

A technology of insulating dipping varnish and silicone, applied in the direction of coating, etc., can solve the problems of insufficient temperature resistance and toughness, achieve good overall impregnation effect, good electrical insulation performance, and improve 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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Examples

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Embodiment Construction

[0014] A kind of organosilicon insulating dipping varnish, is made from the following raw materials (kg) in parts by weight:

[0015] Polymethylphenyl vinyl siloxane 14, diethylene glycol benzoate 6, triethyl citrate 4, alkenyl succinic acid 2, dialkyl zinc dithiophosphate 2, antioxidant Agent DSTP2, isopropyl distearoyloxyaluminate 4, polyisobutylene 6, cyclohexanone peroxide 2, methylenebiscyclohexaneamine 3, vinyl carboxylate 4, vinyl acetate 5, cyclohexanone Calcium alkanoate 1, film forming agent 5.

[0016] 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;

[0017] 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 re...

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Abstract

An organic silicon insulating impregnating varnish and a preparation method thereof are disclosed. The varnish is characterized by being composed of following raw materials in parts by weight: 12 to 14 parts of polymethylphenylvinylsiloxane, 4 to 6 parts of diethylene glycol dibenzoate, 3 to 4 parts of triethyl citrate, 2 to 3 parts of alkenyl succinic acid, 1 to 2 parts of zinc dialkyl dithiophosphate, 1 to 2 parts of anti-oxidant DSTP, 3 to 4 parts of distearoyl isopropoxy aluminate, 6 to 8 parts of polyisobutylene, 1 to 2 parts of cyclohexanone peroxide, 2 to 3 parts of bis(aminocyclohexyl)methane, 3 to 4 parts of vinyl carboxylic ester, 5 to 6 parts of vinyl acetate, 1 to 2 parts of calcium naphthenate and 4 to 5 parts of film forming agent. The organic silicon insulating impregnating varnish has the advantages of good entire-impregnating effect, high-temperature resistance and environmental-friendliness. No low-molecular by-product is discharged when the impregnating varnish is cured, and thus the electric property of the insulating material is not affected.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an impregnating varnish, in particular to an organosilicon insulating 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 anhydrid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/07C09D151/06C09D7/12C09D5/25
Inventor 曹忠富
Owner 马鞍山采石矶涂料有限公司
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