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High-temperature insulating gel for electric heating film heating pipe

An electrothermal film heating tube and high-temperature insulation technology, which is applied in coatings, epoxy resin coatings, etc., can solve the problems of wear resistance, acid and alkali resistance, bonding firmness, and cold and heat cycle resistance. Excellent electrical insulation, small power attenuation, and good folding resistance

Active Publication Date: 2013-06-05
上海跨博电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wear resistance, acid and alkali resistance, bonding firmness and cold and heat cycle resistance of this kind of high temperature resistant composite insulating coating are not good enough.

Method used

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  • High-temperature insulating gel for electric heating film heating pipe
  • High-temperature insulating gel for electric heating film heating pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Example 1, the high-temperature insulating gel formula for electric heating film heating pipe, the weight percentage of each component in the formula is 26% of epoxy resin, 10% of epoxy resin insulating coating, 11% of ether ester solvent, and 9% of ketone solvent %, ester solvent 20%, alcohol ether solvent 8%, shrinkage oil ether diluent 16%. The glycidyl ether diluent is polyethylene glycol diglycidyl ether. The ether ester solvent is propylene glycol methyl ether acetate, the ketone solvent is acetone, the ester solvent is methyl acetate, and the alcohol ether solvent is ethylene glycol monomethyl ether. Epoxy resin insulating coating can adopt the products of Qingdao Dazhou Electronic Materials Co., Ltd.

Embodiment 2

[0040] Example 2, the high-temperature insulating gel formula for electric heating film heating pipe, the weight percentage of each component in the formula is 25% of epoxy resin, 15% of epoxy resin insulating coating, 15% of ether ester solvent, 6% of ketone solvent %, ester solvent 15%, alcohol ether solvent 10%, shrinkage oil ether diluent 14%. The glycidyl ether diluent is lauryl glycidyl ether. The ether ester solvent is epoxy ether propionate, the ketone solvent is methyl butanone, the ester solvent is ethyl acetate, and the alcohol ether solvent is ethylene glycol monoethyl ether.

Embodiment 3

[0041] Example 3, high-temperature insulating gel formula for electric heating film heating tube, the weight percentage of each component in the formula is 30% of epoxy resin, 5% of epoxy resin insulating coating, 13% of ether ester solvent, 12% of ketone solvent %, 25% of ester solvents, 5% of alcohol ether solvents, and 10% of shrinkage oil ether diluents. The glycidyl ether diluent is cresol glycidyl ether. The ether ester solvent is ethylene glycol butyl ether acetate, the ketone solvent is methyl isobutyl ketone, the ester solvent is propyl acetate, and the alcohol ether solvent is ethylene glycol monobutyl ether.

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Abstract

The invention discloses a formula of high-temperature insulating gel for an electric heating film heating pipe. In the formula, the high-temperature insulating gel comprises the following components in percentage by weight: 20-30 percent of epoxy resin, 5-15 percent of epoxy resin insulating coating, 7-15 percent of ester ether solvent, 6-12 percent of ketone solvent, 15-25 percent of ester solvent, 5-10 percent of alcohol ether and 10-20 percent of glycidol ether thinner. A coating prepared according to the formula is coated outside an electric heating film of the electric heating film heating pipe, and has the advantages of wear resistance, acid and alkaline resistance, bonding fastness and high thermo-cycling resistance.

Description

technical field [0001] The invention relates to the electric heating film heating tube technology. Background technique [0002] The Chinese invention patent with application number 91100621.4 disclosed a high temperature resistant composite insulating coating on July 10, 1991. This high temperature resistant composite insulating coating is composed of high temperature resistant resin, high temperature resistant solid filler and resin modified material. The weight ratio of the components is 100:25-80:5-30. The mixed paint can be applied to the surface of the carrier by spraying, brushing or dipping, and is sintered at 200-400°C to form a high-temperature resistant insulating layer. However, the wear resistance, acid and alkali resistance, bonding firmness and cold and heat cycle resistance of this kind of high temperature resistant composite insulating coating are not good enough. Contents of the invention [0003] The technical problem to be solved by the present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/25
Inventor 施吉承卫正强
Owner 上海跨博电器有限公司
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