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High-strength mica paper and method for preparing same

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

Inactive Publication Date: 2017-01-11
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

[0025] 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 meshes; the weight ratio of mother chip powder, polyethylene resin (weight-average molecular weight is 20,000), asbestos (thickness is 0.1mm), starch tertiary aminoalkyl ether, ethylenediaminetetraacetic acid and water is 200: Stir and mix at 36:10:5:4:100 to prepare mica pulp; and make high-strength mica paper A1 by paper-making the obtained mica pulp.

Embodiment 2

[0027] 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 900°C for 1.0h to obtain mica powder. The specification of mica powder is selected It is 180 mesh; the weight ratio of master chip powder, polyethylene resin (weight average molecular weight: 30,000), asbestos (thickness: 0.2mm), quaternary ammonium starch ether, ethylenediaminetetraacetic acid and water is 250:40: Stir and mix at 20:8:6:100 to prepare mica pulp; make the obtained mica pulp to prepare high-strength mica paper A2.

Embodiment 3

[0029] 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 11°, 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 ratio of mica powder, polyethylene resin (weight average molecular weight: 40,000), asbestos (thickness: 0.2mm), quaternary ammonium starch ether, ethylenediaminetetraacetic acid and water is 300:45:25 : 10: 10: 100 to stir and mix to obtain mica pulp; the obtained mica pulp was made into high-strength mica paper A3.

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PUM

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Abstract

The invention discloses high-strength mica paper. A method for preparing the high-strength mica paper includes producing pulp from, by weight, 200-300 parts of mica sheets, 36-45 parts of polyethylene-based resin, 10-25 parts of asbestos, 5-10 parts of cationic starch, 4-10 parts of ethylene diamine tetraacetic acid and 100 parts of water and then manufacturing the high-strength mica paper with the pulp. The high-strength mica paper and the method have the advantages that the high-strength mica paper is extremely high in mechanical strength, and the shortcoming of poor mechanical strength of existing mica paper in application procedures can be overcome.

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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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/44D21H17/35D21H17/29D21H17/14D21H13/42
CPCD21H13/44D21H13/42D21H17/14D21H17/29D21H17/35
Inventor 马西健
Owner WUHU SAUNAKING ELECTRONICS TECH CO LTD
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