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Heat-resistance polyesterimide wire enamel and preparation method thereof

A technology of polyesterimide and enameled wire paint, applied in the field of enameled wire paint, can solve the problems of high cost, expensive solvent and the like of polyimide and polyamideimide, and achieves good freezing resistance, simple preparation method and low cost low effect

Inactive Publication Date: 2012-01-04
BENGBU YINGLU PHOTOELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Considering the production cost, the cost of polyimide and polyamideimide is high, and expensive solvents are also used

Method used

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  • Heat-resistance polyesterimide wire enamel and preparation method thereof

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Effect test

Embodiment 1

[0017] Embodiment 1: heat-resistant polyesterimide wire enamelled varnish, the parts by weight of its constituent raw materials are: 110 parts of xylenol, 100 parts of trimellitic anhydride, 100 parts of maleic anhydride, 30 parts of diaminodiphenylmethane, acrylate 30 parts, 15 parts of glycerin, 40 parts of ethylene glycol, 40 parts of dimethyl terephthalate, 1 part of straw ash, 2 parts of tetrabutyloxytitanium, 1 part of attapulgite, 1 part of N-methylpyrrolidone, 5 parts of chlorinated olefins.

Embodiment 2

[0018] Embodiment 2: heat-resistant polyesterimide wire enamelled varnish, the parts by weight of its constituent raw materials are: 115 parts of xylenol, 105 parts of trimellitic anhydride, 102 parts of maleic anhydride, 35 parts of diaminodiphenylmethane, acrylate 35 parts, 18 parts of glycerin, 45 parts of ethylene glycol, 45 parts of dimethyl terephthalate, 2 parts of straw ash, 3 parts of tetrabutyloxytitanium, 2 parts of attapulgite, 1.5 parts of N-methylpyrrolidone, 8 parts of chlorinated olefins.

Embodiment 3

[0019] Embodiment 3: Heat-resistant polyesterimide wire enamelled varnish, the parts by weight of its constituent raw materials are: 120 parts of xylenol, 110 parts of trimellitic anhydride, 105 parts of maleic anhydride, 40 parts of diaminodiphenylmethane, acrylate 40 parts, 20 parts of glycerin, 50 parts of ethylene glycol, 50 parts of dimethyl terephthalate, 3 parts of straw ash, 5 parts of tetrabutyloxytitanium, 3 parts of attapulgite, 2 parts of N-methylpyrrolidone, 10 parts of chlorinated olefins.

[0020] The preparation method of heat-resistant polyesterimide wire enamel of the present invention comprises the following steps:

[0021] (1) Add trimellitic anhydride, maleic anhydride, dimethyl terephthalate and acrylic acid ester into the reactor according to the weight of the raw materials, heat to 150-200°C, and react for 4.5-5.5 hours;

[0022] (2) Add diaminodiphenylmethane to the solution obtained in step (1) in parts by weight, keep it at 155-180°C, and keep it wa...

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Abstract

The invention relates to heat-resistance polyesterimide wire enamel and a preparation method thereof. The heat-resistance polyesterimide wire enamel is mainly prepared by mixing raw material components including dimethyl phenol, trimellitic anhydride, diaminodiphenyl methane, cis-butenedioic anhydride, acrylic ester, glycerol, glycol, dimethyl terephthalate, straw ash, titanium tetrabutoxide, attapulgite, N-methyl pyrrolidone and chlorinated olefin according to a certain weight part ratio, and reacting to obtain a finished product. The preparation method disclosed by the invention is simple and low in cost; and the prepared wire enamel has high heat resistance, solvent resistance and freezing resistance.

Description

technical field [0001] The invention relates to a heat-resistant polyesterimide wire enamel and a preparation method thereof, belonging to the field of wire enamel. Background technique [0002] At present, there are two main types of coatings used for the production of enameled wires: [0003] One is selected from polyimide or its composite coating with other polymers; the other is selected from polyamideimide or its composite coating with other polymers. [0004] From the perspective of production cost, the cost of polyimide and polyamideimide is high, and expensive solvents are also used. Considering the performance of raw materials, heat-resistant polyesterimide wire enamel is between polyimide wire enamel and polyester wire enamel, and belongs to H-200 grade insulating varnish. Heat-resistant polyesterimide wire enamel is superior in many aspects For polyimide wire enamel and polyester wire enamel, this is because it is selected from heat-resistant polyester imide wir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D5/25C08G73/16
Inventor 刘孝峰
Owner BENGBU YINGLU PHOTOELECTRIC
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