Epoxy impregnated resin and preparation method thereof

A technology of impregnating resin and epoxy resin, which is applied in the direction of coating, etc., can solve the problems of insufficient temperature resistance and toughness, and achieve the effects of high mechanical strength, good electrical insulation performance, and high temperature resistance

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 grade and toughness of the cured product of this system are insufficient, so it is necessary to modify the epoxy anhydride impregnatio

Method used

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Examples

Experimental program
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Example Embodiment

[0012] An epoxy impregnating resin made from the following raw materials (kg) in parts by weight:

[0013] E-44 epoxy resin 35, melamine formaldehyde resin 14, xylylenediamine trimer 3, phthalic anhydride 8, hydroquinone 2, tert-butyl hydroperoxide 2, methyl trichlorosilane 10, Methyl tin mercaptan 2, styrene 5, vinyl carboxylate 3, p-nitrobenzoic acid 2, xylene 45, film forming agent 5.

[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 distearoyl oxyaluminate Ester 2, tetradecyl alcohol ester 5, aluminum nitride 2, nano-attapulgite 2, epoxy soybean oil 4, morpholine 2;

[0015] The preparation method is: mixing the materials, heating to 105-110°C, stirring and reacting for 2-3 hours, and grinding to remove the residue.

[0016] The preparation method of epoxy impregnating resin includes the following steps: adding phthalic anhydride, hydroq...

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PUM

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Abstract

An epoxy impregnated resin and a preparation method thereof are disclosed. The epoxy impregnated resin is characterized by being composed of following raw materials in parts by weight: 32 to 35 parts of epoxy resin, 12 to 14 parts of terpolycyantoamino-formaldehyde resin, 2 to 3 parts of benzene dimethylamine tripolymer, 6 to 8 parts of phthalic anhydride, 1 to 2 parts of hydroquinone, 1 to 2 parts of tert-butyl hydroperoxide, 8 to 10 parts of methyltrichlorosilane, 1 to 2 parts of methyl tin mercaptide, 5 to 7 parts of styrene, 3 to 4 parts of vinyl carboxylate, 1 to 2 parts of nitrodracylic acid, 40 to 45 parts of xylene and 4 to 5 parts of film forming agent. The impregnated paint has the advantages of high temperature and high damp resistance, good electric insulation property, good toughness, high heatproof grade, and high mechanic strength. Heat conductivity of the impregnated resin is improved, so the expoxy impregnated resin can work at the temperature of 200 DEG C for a long term, and work at the temperature of 220 DEG C for a short term. The expoxy impregnated resin can be applied to the insulation systems, which have high requirements on heatproof grade, of motor train units motors and subway motors.

Description

technical field [0001] The invention belongs to the field of insulating materials, and relates to an epoxy impregnated resin 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 anhydride impregnation paint system needs to be modified, so that the cu...

Claims

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Application Information

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IPC IPC(8): C09D4/00C09D7/12C09D5/25
Inventor 曹忠富
Owner 马鞍山采石矶涂料有限公司
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