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High-strength mica paper and preparation method thereof

A mica paper, high-strength technology, applied in the field of mica paper

Inactive Publication Date: 2017-01-04
WUHU SAUNAKING ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical strength of mica paper needs to be further improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Select a mica sheet with a thickness-to-diameter ratio of 65, wash it 3 times in clean water until the turbidity of the water is 9°, dry the washed mica sheet, and then calcinate it at 850°C for 1.5 hours to obtain mica powder. The specification of mica powder is selected It is 120 mesh; the weight of mother chip powder, polyethylene resin (weight-average molecular weight is 20,000), asbestos (thickness is 0.1mm), polyacrylamide (weight-average molecular weight is 0.5 million), ethylenediaminetetraacetic acid and water Stir and mix at a ratio of 200:36:10:5:4:100 to prepare mica pulp; make the obtained mica pulp to prepare high-strength mica paper A1.

Embodiment 2

[0026] Select a mica sheet with a thickness-to-diameter ratio of 80, wash it in clean water for 3 times until the turbidity of the water is 10°, dry the washed mica sheet, and then calcinate it at 850°C for 1.5 hours to obtain mica powder. The specification of mica powder is selected It is 120 mesh; the weight of master chip powder, polyethylene resin (weight-average molecular weight is 30,000), asbestos (thickness is 0.1mm), polyacrylamide (weight-average molecular weight is 20,000), ethylenediaminetetraacetic acid and water The mixing ratio is 250:40:20:8:8:100, and the mica pulp is obtained by stirring and mixing; the obtained mica pulp is made into high-strength mica paper A2.

Embodiment 3

[0028] Select a mica sheet with a thickness-to-diameter ratio of 90, wash it in clean water for 3 times until the turbidity of the water is 12°, dry the washed mica sheet, and then calcinate it at 950°C for 0.5h to obtain mica powder. The specification of mica powder is selected 200 mesh; the weight of mother powder, polyethylene resin (weight-average molecular weight: 40,000), asbestos (thickness: 0.2mm), polyacrylamide (weight-average molecular weight: 25,000), ethylenediaminetetraacetic acid and water The mixing ratio is 300:45:25:10:10:100 and the mica pulp is obtained by stirring and mixing; the obtained mica pulp is made into high-strength mica paper A3.

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Abstract

The invention discloses high-strength mica paper. The high-strength mica paper is prepared from mica sheets, polyvinyl resin, asbestos, polyacrylamide, ethylenediaminetetraacetic acid and water through pulping and papermaking; in terms of 100 parts by weight of the water, the high-strength mica paper is prepared from 200-300 parts by weight of the mica sheets, 36-45 parts by weight of polyvinyl resin, 10-25 parts by weight of asbestos, 5-10 parts by weight of polyacrylamide and 4-10 parts by weight of ethylenediaminetetraacetic acid. The high-strength mica paper has quite high mechanical strength and overcomes the defect of poor mechanical strength in an application process of the mica paper.

Description

technical field [0001] The invention relates to mica paper, in particular to a high-strength mica paper and a preparation method thereof. Background technique [0002] Mica is a general term for a class of hydrous aluminosilicates. Mica has excellent properties such as insulation and high temperature resistance, and is widely used in coatings, paints, fire protection and electrical industries. Among them, making mica into mica paper is one of the most widely used mica applications. [0003] At present, mica paper has all the varieties corresponding to sheet mica products. The industry mainly uses the insulation and heat resistance of mica paper, as well as its acid and alkali resistance, to be used as insulating materials for electrical equipment and electrical equipment. However, the mechanical strength of mica paper needs to be further improved. Contents of the invention [0004] The object of the present invention is to provide a high-strength mica paper, which has h...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L33/26C08K9/00C08K3/34C08K5/17C08K7/12
CPCC08L23/06C08K2201/016C08L33/26C08K9/00C08K3/34C08K5/175C08K7/12
Inventor 马西健
Owner WUHU SAUNAKING ELECTRONICS TECH CO LTD
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