Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-strength mica paper and preparation method thereof

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

Inactive Publication Date: 2017-02-15
WUHU SAUNAKING ELECTRONICS TECH CO LTD
View PDF4 Cites 2 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 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 of master chip powder, urea-formaldehyde resin (weight-average molecular weight is 20,000), glass fiber (length is 0.3mm), 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

[0025] 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; mix the weight of mother chip powder, urea-formaldehyde resin (weight-average molecular weight is 30,000), glass fiber (length is 0.5mm), 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

[0027] Select a mica sheet with a thickness-to-diameter ratio of 85, 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 It is 200 mesh; the weight of mother powder, urea-formaldehyde resin (weight-average molecular weight is 40,000), glass fiber (length is 0.6mm), polyacrylamide (weight-average molecular weight is 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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses high-strength mica paper. The high-strength mica paper is prepared through pulping and papermaking from a mica plate, urea resin, glass fiber, polyacrylamide, ethylenediaminetetraacetic acid and water, wherein relative to 100 parts of water by weight, the using amount of the mica plate is 200 to 300 parts by weight, the using amount of the urea resin is 36 to 45 parts by weight, the using amount of the glass fiber is 10 to 25 parts by weight, the using amount of the polyacrylamide is 5 to 10 parts by weight, and the using amount of the ethylenediaminetetraacetic acid is 4 to 10 parts by weight. The high-strength mica paper has extremely high mechanical strength, and makes up the defect that the mica paper is low in mechanical strength in the application process.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D21H27/12D21H13/44D21H13/40D21H17/37D21H17/47D21H17/07
CPCD21H27/00D21H13/40D21H13/44D21H17/07D21H17/37D21H17/47D21H17/72
Inventor 马西健
Owner WUHU SAUNAKING ELECTRONICS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com