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Epoxy glass powder mica belt and preparation method thereof

A technology of powder mica tape and epoxy glass, which is applied in the direction of insulators, electrical components, insulators, etc.

Inactive Publication Date: 2011-06-01
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many users have strict requirements on the curing time of mica tape, and the mica tape produced by the current process cannot meet the needs of the market at all.
This problem has not been satisfactorily resolved

Method used

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  • Epoxy glass powder mica belt and preparation method thereof
  • Epoxy glass powder mica belt and preparation method thereof
  • Epoxy glass powder mica belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The epoxy glass powder mica tape is formed by laminating mica paper, glass cloth and epoxy adhesive, wherein the epoxy adhesive paint is prepared from the following raw materials in parts by weight: 30 parts of tung oil, 10 parts of maleic anhydride , 1 part of bismaleimide, 40 parts of epoxy resin, 40 parts of solvent, 1.5 parts of compounding agent and 0.05 part of catalyst. Among them, the solvent is prepared by mixing acetone and toluene in a weight ratio of 1:1; the composite agent is prepared by uniformly mixing HK550 and HK560 in a weight ratio of HK550:HK560=4.5:5.5; the catalyst is lead octoate.

[0017] The making of this epoxy glass powder mica tape is to carry out as follows:

[0018] Firstly, take tung oil and maleic anhydride according to the stated ratio, put them into the reaction kettle and stir evenly, and heat to 80°C for reaction, keep it warm for 20 minutes to make tung oil anhydride, then add bismaleic acid according to the described ratio Stir th...

Embodiment 2

[0022] The epoxy glass powder mica tape is formed by laminating mica paper, glass cloth and epoxy adhesive, wherein the epoxy adhesive paint is prepared from the following raw materials in parts by weight: 35 parts of tung oil, 15 parts of maleic anhydride , 3 parts of bismaleimide, 50 parts of epoxy resin, 50 parts of solvent, 4 parts of compounding agent and 0.4 part of catalyst. Among them, the solvent is prepared by mixing acetone and toluene in a weight ratio of 1:1; the composite agent is prepared by mixing HK550 and HK560 in a weight ratio of HK550:HK560=4.5:5.5; the catalyst is manganese octoate.

[0023] The preparation method of this epoxy glass powder mica tape is basically the same as embodiment one, and the difference only lies in:

[0024] After putting tung oil and maleic anhydride into the reactor and stirring evenly, the heating temperature is 115°C, and the holding time is 14 minutes; For 12 minutes, the detection situation of the epoxy glass powder mica tap...

Embodiment 3

[0028] The epoxy glass powder mica tape is formed by laminating mica paper, glass cloth and epoxy adhesive, wherein the epoxy adhesive paint is prepared from the following raw materials in parts by weight: 40 parts of tung oil, 20 parts of maleic anhydride , 5 parts of bismaleimide, 60 parts of epoxy resin, 60 parts of solvent, 5 parts of compounding agent and 0.7 part of catalyst. Among them, the solvent is prepared by mixing acetone and toluene in a weight ratio of 1:1; the composite agent is prepared by mixing HK550 and HK560 in a weight ratio of HK550:HK560=4.5:5.5; the catalyst is zinc octoate.

[0029] The preparation method of this epoxy glass powder mica tape is basically the same as embodiment one, and the difference only lies in:

[0030] After putting tung oil and maleic anhydride into the reactor and stirring evenly, the heating temperature is 150°C for reaction, and the holding time is 8 minutes; ℃, and the holding time is 8 minutes. The detection status of the e...

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PUM

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Abstract

The invention discloses an epoxy glass powder mica belt and a preparation method thereof. The epoxy powder mica belt is formed by laminating mica paper, glass cloth and epoxy adhesive, wherein the epoxy adhesive is prepared from tung oil, maleic anhydride, bismaleimide, epoxy resin, a solvent, a complexing agent and a catalyst. The production quality of the epoxy glass powder mica belt prepared by a unique method can be ensured, the curing time during use can be accurately controlled according to customer demands; and the invention has the advantages of simple process, simple operation, reliable use performance and the like.

Description

technical field [0001] The invention belongs to the technical field of insulating tapes, in particular to an epoxy glass powder mica tape and a production method thereof. Background technique [0002] Since the 1980s, epoxy glass powder mica tape has become the main insulating material for high-voltage motors. In the known technology, the epoxy glass powder mica tape is usually made of mica paper as the base material, epoxy adhesive paint as the adhesive, and alkali-free glass cloth as the reinforcing material on one side. . At present, the production process of epoxy adhesive paint is mostly to put various raw materials of composite epoxy resin glue into the reaction kettle, heat it at about 200°C, stir it into a slurry, then add a solvent, and adjust the gelation time at 8~ In 20 minutes, the compounding of the mica tape can be carried out on the compounding equipment. In the process of winding the pressed coil with the mica tape, curing is usually carried out at a temp...

Claims

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Application Information

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IPC IPC(8): H01B3/02H01B17/60H01B19/00
Inventor 桑可朝杜振宇王荣发庞建中齐延敏
Owner STATE GRID CORP OF CHINA
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