Low-temperature environment-friendly polyesterimide wire enamel and preparation method thereof

A technology of polyesterimide and wire enamel, which is applied in the field of wire enamel, can solve the problems of high cost and expensive solution of polyimide and polyamideimide, and achieve 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

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Problems solved by technology

[0004] Considering the production cost, the cost of polyimide a

Method used

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  • Low-temperature environment-friendly polyesterimide wire enamel and preparation method thereof

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Effect test

Embodiment 1

[0017] Embodiment 1: Low-temperature environment-friendly polyesterimide wire enamel, the parts by weight of its raw materials are: 110 parts of xylenol, 55 parts of maleic anhydride, 10 parts of acrylate, 10 parts of diaminodiphenyl ether, glycerin 15 parts, 40 parts of ethylene glycol, 1 part of butyl orthotitanate, 1 part of straw ash, 2 parts of tetrabutyloxytitanium, 1 part of attapulgite, and 5 parts of chlorinated olefin.

Embodiment 2

[0018] Embodiment 2: Low-temperature environment-friendly polyesterimide wire enamel, the parts by weight of its raw materials are: 115 parts of xylenol, 58 parts of maleic anhydride, 15 parts of acrylate, 15 parts of diaminodiphenyl ether, glycerin 18 parts, 45 parts of ethylene glycol, 1.5 parts of butyl orthotitanate, 2 parts of straw ash, 4 parts of tetrabutyl titanium oxide, 2 parts of attapulgite, and 8 parts of chlorinated olefin.

Embodiment 3

[0019] Embodiment 3: Low-temperature environment-friendly polyesterimide wire enamel, the parts by weight of its raw materials are: 120 parts of xylenol, 60 parts of maleic anhydride, 20 parts of acrylate, 20 parts of diaminodiphenyl ether, glycerin 20 parts, 50 parts of ethylene glycol, 2 parts of butyl orthotitanate, 3 parts of straw ash, 5 parts of tetrabutyloxytitanium, 3 parts of attapulgite, and 10 parts of chlorinated olefin.

[0020] The preparation method of low-temperature environment-friendly polyesterimide wire enamel of the present invention comprises the following steps:

[0021] (1) Add xylenol, maleic anhydride and acrylate 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) Diaminodiphenyl ether is added to the solution obtained in step (1) in parts by weight, kept at 155-180° C., and kept for half an hour;

[0023] (3) Add ethylene glycol and glycerin to the solution obtained in step (2)...

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Abstract

The invention relates to low-temperature environment-friendly polyesterimide wire enamel and a preparation method thereof. The low-temperature environment-friendly polyesterimide wire enamel is prepared by mixing raw material components including dimethyl phenol, cis-butenedioic anhydride, acrylic ester, diaminodiphenyl ether, glycerol, glycol, n-butyl titanate, straw ash, titanium tetrabutoxide, attapulgite and chlorinated olefin according to a certain weight part ratio, and reacting to obtain a finished product. The preparation method 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 low-temperature environment-friendly 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, low-temperature environment-friendly polyesterimide wire enamel is between polyimide wire enamel and polyester wire enamel, and belongs to H-200 class insulating varnish. Low-temperature environment-friendly polyesterimide wire enamel is superior in many aspects For polyimide wire enamel and polyester wire enamel, this...

Claims

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Application Information

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IPC IPC(8): C09D179/08C09D5/25C08G73/16
Inventor 刘孝峰
Owner BENGBU YINGLU PHOTOELECTRIC
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