Alkyd resin impregnating varnish and preparation method thereof

A technology of alkyd resin and dipping paint, which is applied in the direction of coating and polyester coating, which can solve the problems of insufficient temperature resistance and toughness, and achieve the effect of high mechanical strength, fast drying and dense paint film

Inactive 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 and toughness of the cured product of this system are insufficient, and the epoxy anhydride alkyd resin impregnating paint system need...

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0012] An alkyd impregnated varnish made from the following raw materials (kg) in parts by weight:

[0013] Medium oil alkyd resin 45, melamine formaldehyde resin 26, m-phenylenediamine 14, diaminodiphenylmethane 6, calcium naphthenate 4, simethicone 6, Tristyrylphenol polyoxyethylene ether 2, ricinoleic acid 2, vinyl tris(β-methoxyethoxy) silane 5, styrene 4, vinyl carboxylate 8, tributyltin trichloride 3. Film-forming agent4.

[0014] 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;

[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 alkyd resin dipping pai...

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PUM

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Abstract

An alkyd impregnating varnish and a preparation method thereof are disclosed. The varnish is characterized by being composed of following raw materials in parts by weight: 40 to 45 parts of medium-oil-length alkyd resin, 24 to 26 parts of terpolycyantoamino-formaldehyde resin, 12 to 14 parts of m-phenylenediamine, 6 to 8 parts of diaminodiphenyl-methane, 3 to 4 parts of calcium naphthenate, 4 to 6 parts of dimethicone, 1 to 2 parts of triphenethylphenoxypoly(ethyleneoxy)ethanol, 2 to 3 parts of ricinoleic acid, 4 to 5 parts of vinyl tri(beta-metoxyethoxy) silane, 3 to 4 parts of styrene, 8 to 10 parts of vinyl carboxylic ester, 2 to 3 parts of tributyltin chloride and 4 to 5 parts of film forming agent. The alkyd resin impregnating varnish has the advantages of compact coating membrane, fast drying, high-temperature resistance, high dampness resistance, good electric insulation property and high mechanic performance. 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. The design requirements are fulfilled.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an alkyd resin 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 alkyd impregnating varnish 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 it is necessary to modify the epoxy anhydride alkyd resin impregn...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D161/28C09D7/12C09D5/25
Inventor 曹忠富
Owner 马鞍山采石矶涂料有限公司
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