Supercharge Your Innovation With Domain-Expert AI Agents!

Polyimide resin reinforced meta-aramid paper preparation method

A technology of polyimide resin and aramid paper, which is applied in the fields of paper, papermaking, textiles and papermaking, etc. It can solve the problem that aramid paper has a large difference in strength and performance, cannot meet the requirements of high-end fields, and the research on aramid paper started late and other issues to achieve the effect of strong innovation, increased strength, and promotion of development

Active Publication Date: 2013-03-06
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After years of development, foreign aramid paper has been able to meet the requirements of high-end fields. However, domestic research on aramid paper started relatively late. The use requirements of the harsh environment of the field

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyimide resin reinforced meta-aramid paper preparation method
  • Polyimide resin reinforced meta-aramid paper preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The meta-aramid chopped fiber is fully decomposed and dispersed in a trough beater for 30 minutes; the meta-aramid fibrid is decomposed and dispersed in a trough beater until the beating degree is 25°SR to obtain the meta-aramid fiber. In order to reduce the entanglement of meta-aramid fibrids, PEO is added in the amount of 0.01% (relative to the absolute dry mass of meta-aramid fibrids) in the process of dispersing and dispersing. The aramid fibrid fibrid pulp and the meta-aramid chopped fiber after dispersing and dispersing are combined to form an aramid fibrous pulp. The addition amount of the meta-aramid fibrid fibrous pulp is 30%. In terms of dry mass, relative to the absolute dry mass of meta-aramid staple fiber); styrene butadiene latex and CPAM are added to the aramid fiber pulp at 8% (relative to meta-aramid fibrid and inter- The ratio of the sum of the absolute dry mass of the aramid chopped fiber) and 1.5% (relative to the ratio of the sum of the absolute dry ...

Embodiment 2

[0020] The meta-aramid chopped fiber is fully decomposed and dispersed in a trough beater for 10 minutes; the meta-aramid fibrid is decomposed and dispersed in a trough beater until the beating degree is 35°SR to obtain the meta-aramid fiber. In order to reduce the entanglement of meta-aramid fibrids, PEO is added in the amount of 3% (relative to the absolute dry mass of meta-aramid fibrids) in the process of dispersing and dispersing. Aramid fibrid fibrid pulp and the meta-aramid chopped fiber after dispersing and dispersing are combined to form an aramid fiber pulp. The addition amount of the meta-aramid fibrid fibrous pulp is 10% (the meta-aramid fibrid fibrid is used for insulation In terms of dry mass, relative to the absolute dry mass of meta-aramid chopped fiber); styrene butadiene latex and CPAM are added to the aramid fiber pulp at 18% respectively (relative to meta-aramid fibrid and inter- The ratio of the sum of the absolute dry mass of the aramid chopped fiber) and ...

Embodiment 3

[0022] The meta-aramid chopped fiber is fully decomposed and dispersed in a trough beater for 60 minutes; the meta-aramid fibrid is decomposed and dispersed in a trough beater to a beating degree of 60°SR to obtain a meta-aramid fiber. To reduce the entanglement of meta-aramid fibrids, PEO is added in the amount of 8% (relative to the absolute dry mass of meta-aramid fibrids) during the process of dispersing and dispersing; Aramid fibrid fibrous pulp and the meta-aramid chopped fiber after dispersing and dispersing are combined to form an aramid fibrous pulp. The addition amount of meta-aramid fibrid fibrous pulp is 0.01%. In terms of dry mass, relative to the absolute dry mass of meta-aramid chopped fiber); styrene butadiene latex and CPAM are added to the aramid fiber pulp at 0.1% (relative to meta-aramid fibrid and inter- The ratio of the sum of the absolute dry mass of the aramid chopped fiber) and 20% (the ratio of the sum of the absolute dry mass of the meta-aramid fibrid...

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 present invention provides a polyimide resin reinforced meta-aramid paper preparation method, which comprises: carrying out ease dispersion on meta-aramid precipitation fibers in a groove type pulp beater, carrying out ease dispersion on meta-aramid short-cut fibers, and adding the treated meta-aramid precipitation fibers to the treated meta-aramid short-cut fibers to prepare a aramid fiber pulp; adding styrene-butadiene latex and cation polyacrylamide to the aramid fiber pulp; adopting a paper machine to carry out papermaking molding and drying to obtain base paper; and adopting a polyimide resin to immerse the base paper, and carrying out hot pressing through a hot pressing machine to obtain the meta-aramid fiber paper. According to the plyimide resin reinforced meta-aramid paper preparation method, the polyimide resin is adopted to carry out an immersion treatment on the aramid base paper, such that strength and papermaking of the aramid paper are improved, paper breaking during papermaking is reduced, speed of the paper machine is improved, and production efficiency is increased.

Description

Technical field [0001] The invention belongs to the cross field of the papermaking industry and the material industry, and specifically relates to a preparation method of polyimide resin reinforced meta-aramid paper. Background technique [0002] The full name of aramid meta-fiber is poly-metaphenylene terephthalamide, the English abbreviation is PMTA, and it is called aramid 1313 fiber in my country. It is a new type of high-tech synthetic fiber with ultra-high strength, high modulus and Excellent properties such as high temperature resistance, acid and alkali resistance, light weight, etc., its strength is 5-6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, its toughness is twice that of steel wire, and its weight is only 1 times of steel wire. / 5 or so. The fiber can be used for more than ten years at 220°C, and its service life is higher than that of all industrial organic high temperature resistant fibers. When kept at 240℃ for 1000 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): D21H13/26D21H17/56
Inventor 陆赵情花莉张美云丁孟贤杨诚付饶孟育徐强
Owner SHAANXI UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com