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High-temperature resistance organic silicon impregnating varnish and preparation method thereof

A silicone-impregnated, high-temperature-resistant technology, used in coatings, epoxy resin coatings, polyester coatings, etc., can solve problems such as insufficient temperature resistance grade and toughness, achieve high room temperature tensile shear strength, and simple preparation process , good toughness effect

Active Publication Date: 2013-11-06
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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Effect test

Embodiment Construction

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

[0015] Silicone resin 32, vinyltriamine 3, alkyd resin 8, ethyl acetate 12, E-12 epoxy resin 16, maleic anhydride 6, ethylene glycol 7, dibutyltin dilaurate 2, cyanuric acid Zinc 2, polyisobutylene 4, polyoxyethylene abietic acid 2, vinyl tris(β-methoxyethoxy) silane 4, xylene 38, film former 5.

[0016] The film-forming agent is made of the following raw materials in parts by weight: silane coupling agent KH550 4, 582-2 amino resin 16, polyisobutylene 4, cobalt naphthenate 2, isopropyl distearoyloxyaluminate Ester 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 remove slag.

[0018] The preparation method of high...

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Abstract

A high-temperature resistance organic silicon impregnating varnish and a preparation method thereof are disclosed. The varnish is characterized by being composed of following components in parts by weight: 32 to 35 parts of organic silicon resin, 2 to 3 parts of vinyl triamine, 6 to 8 parts of alkyd resin, 10 to 12 parts of ethyl acetate, 14 to 16 parts of E-12 epoxy resin, 4 to 6 parts of maleic anhydride, 6 to 7 parts of glycol, 2 to 3 parts of dibutyltin dilaurate, 1 to 2 parts of cyanuric acid zinc, 4 to 5 parts of polyisobutylene, 2 to 3 parts of rosin acid polyoxyethylene ester, 3 to 4 parts of vinyl tri(beta- methoxyl ethoxyl) silane, 35 to 38 parts of xylene and 4 to 5 parts of film forming agent. The impregnating varnish has the advantages of good varnish membrane toughness, high impact resistance strength, varnish membrane compactness, yellowing resistance, high-temperature resistance, high dampness resistance, corrosion resistance, good electric insulation property and high mechanic strength, the heat conductivity of the varnish is improved, so 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, and 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 organosilicon 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D167/08C09D163/00C09D7/12C09D5/25
Inventor 曹忠富
Owner 马鞍山采石矶涂料有限公司
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