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

Cotton pulp for electrolytic capacitor paper and its production process

A technology of electrolytic capacitor paper and production process, which is applied in pulp bleaching, cellulose pulp post-treatment, non-woody plant/crop pulp, etc., can solve the problems that capacitor paper cannot be made, and achieve the effect of eliminating influence and high purity

Active Publication Date: 2017-12-29
山东银鹰化纤有限公司
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high price of hemp pulp and the long-term dependence on imports of pulp for domestic electrolytic capacitor paper, the iron quality of cotton pulp commonly used in the general market: ≤30PPM and ash content: ≤0.20% cannot be used to make capacitor paper. requirements

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

[0043] An embodiment, a cotton pulp for electrolytic capacitor paper, the cotton pulp has the following indicators: the degree of polymerization is 900-950; while ensuring the necessary mechanical strength, the absorption of the electrolyte is guaranteed.

[0044] Conductivity ≤1.5ms / m; water-soluble chloride ≤10ppm; ash content <0.08%; iron ≤10ppm.

[0045] It meets the requirement of high purity of electrolytic capacitors and eliminates the influence of impurities on the performance of electrolyte and electrode foil. This is also the main sign that electrolytic capacitor paper is different from other papers.

[0046] The above-mentioned process of cotton pulp, the process includes the pre-treatment step of cotton linters. The steps are as follows: Cotton linters, using Xinjiang Class II velvet;

[0047] Dry impurity removal; remove cotton seed hulls, ash and other impurities in cotton linters;

[0048] Wet impurity removal; further remove impurities such as cotton seed hul...

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
degree of polymerizationaaaaaaaaaa
whitenessaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

Abstract

The invention discloses cotton pulp for electrolytic capacitor paper. The cotton pulp has the following indexes: the degree of polymerization is 900-950; the electrolyte absorbability is guaranteed while the necessary mechanical strength is guaranteed, and the electric conductivity is smaller than or equal to 1.5 ms / m; the content of water-soluble chloride is smaller than or equal to 10 ppm; the ash content is smaller than 0.08%; the content of iron is smaller than or equal to 10 ppm; the requirement for high purity of an electrolytic capacitor is met, influence of impurities on performance of an electrolyte and electrode foil is eliminated, and the high purity is the main mark for differing the electrolytic capacitor paper from other paper. The invention further discloses a technology of the cotton pulp. The technology comprises a step of early processing of cotton linter and a step of late processing.

Description

technical field [0001] The invention relates to a cotton pulp and a production process thereof, in particular to a cotton pulp for electrolytic capacitor paper and a production process thereof, and belongs to the technical field of raw material production of electrolytic capacitor paper. Background technique [0002] Electrolytic capacitor paper, also known as capacitor diaphragm paper, plays the role of isolation and insulation between the anode and cathode aluminum foil of electrolytic capacitors. [0003] Electrolytic capacitor paper (also known as electrolytic paper) is one of the three key materials that constitute aluminum electrolytic capacitors. As an adsorption carrier for the electrolyte, it forms the cathode of the aluminum electrolytic capacitor together with the electrolyte, and at the same time plays the role of isolating the two pole foils, also known as the separator paper. [0004] In terms of industry classification, electrolytic paper not only belongs to ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12D21B1/02D21B1/34D21C1/04D21C9/16
CPCD21B1/02D21B1/023D21B1/345D21C1/04D21C9/163
Inventor 曹知朋陈忠国马伟良郑春友吕兴华唐逢李宗臻
Owner 山东银鹰化纤有限公司
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