Organic/inorganic wire enamel and preparation method thereof

An enameled wire enamel and inorganic technology, applied in the field of enamelled wire enamel, can solve the problems of expensive solvent, high cost of polyimide and polyamideimide, and achieve the effect of simple preparation method, good freeze resistance and low cost

Inactive Publication Date: 2013-09-25
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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  • Organic/inorganic wire enamel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Organic-inorganic 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, 30 parts of acrylate, glycerin 15 parts, 40 parts of neopentyl glycol, 40 parts of dimethyl terephthalate, 1 part of straw ash, 2 parts of tetrabutoxytitanium, 1 part of attapulgite, 1 part of N-methylpyrrolidone, 3 parts of phenolic resin %.

Embodiment 2

[0020] Embodiment 2: organic-inorganic wire enamelled varnish, the parts by weight of its raw materials are: 115 parts of xylenol, 105 parts of trimellitic anhydride, 102 parts of maleic anhydride, 35 parts of diaminodiphenylmethane, 35 parts of acrylate, glycerin 18 parts, neopentyl glycol 45 parts, dimethyl terephthalate 45 parts, straw ash 2 parts, tetrabutoxytitanium 3 parts, attapulgite 2 parts, N-methylpyrrolidone 1.5 parts, amino resin 2 parts %.

Embodiment 3

[0021] Embodiment 3: Organic-inorganic wire enamelled varnish, the parts by weight of its raw materials are: 120 parts of xylenol, 110 parts of trimellitic anhydride, 105 parts of maleic anhydride, 40 parts of diaminodiphenylmethane, 40 parts of acrylate, glycerin 20 parts, neopentyl glycol 50 parts, dimethyl terephthalate 50 parts, straw ash 3 parts, tetrabutoxytitanium 5 parts, attapulgite 3 parts, N-methylpyrrolidone 2 parts, amino resin 3 parts %.

[0022] The preparation method of organic-inorganic wire enamel of the present invention comprises the following steps:

[0023] (1) Add trimellitic anhydride, maleic anhydride, dimethyl terephthalate and acrylic acid ester into the reaction kettle according to the weight of the raw materials, heat to 150-200°C, and react for 4.5-5.5 hours;

[0024] (2) Add diaminodiphenylmethane to the solution obtained in step (1) by weight, keep it at 155-180°C, and keep it warm for half an hour;

[0025] (3) Add neopentyl glycol and glycer...

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Abstract

The invention relates to an organic / inorganic wire enamel and a preparation method thereof. The organic / inorganic wire enamel is mainly prepared by mixing and reacting xylenol, trimellitic anhydride, diaminodiphenyl methane, maleic anhydride, acrylate, glycerol, neopentyl glycol, dimethyl terephthalate, straw ash, titanium tetrabutoxide, attapulgite, N-methylpyrrolidone and additives in certain weight proportion. The preparation method is simple and has the advantage of low cost, and the prepared wire enamel has the advantages of high heat resistance, high solvent resistance and high cold resistance.

Description

technical field [0001] The invention relates to an organic-inorganic 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, organic-inorganic wire enamel is between polyimide wire enamel and polyester wire enamel, and belongs to H-200 grade insulating varnish. Organic-inorganic wire enamel is superior to polyimide wire enamel and polyester wire enamel in many aspects. Polyester wire enamel, which is selected from organic and inorganic wire enamel contains both ester groups...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D179/08C09D7/12C09D5/25
Inventor 刘孝峰
Owner BENGBU YINGLU PHOTOELECTRIC
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