Method of preparing voltage-resistant electrolytic capacitor paper through in-machine coating

An electrolytic capacitor paper and coating technology, applied in pulp beating method, special paper, coating and other directions, to achieve the effects of excellent voltage resistance, good loss value and good strength

Inactive Publication Date: 2018-05-08
ZHEJIANG KAN SPECIAL PAPER CO LTD +1
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this problem, there is no better solution

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
  • Method of preparing voltage-resistant electrolytic capacitor paper through in-machine coating
  • Method of preparing voltage-resistant electrolytic capacitor paper through in-machine coating

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0023] Sisal pulp with low beating degree: 30 parts

[0024] High beating degree Manila hemp pulp: 70 parts

[0025] The beating degree and wet weight of low beating degree sisal pulp are 48°SR and 8.6g respectively, and the beating degree and wet weight of high beating degree sisal pulp are 90°SR and 5.6g respectively. It is carried out through free beating in the type beater, and the beating concentration is 2.5%. The high beating degree sisal pulp is beaten by three double-disk refiners, and the beating concentration is 3.5%. After the beating is completed, it is formed by double cylinders and compounded, and the finished product is obtained after drying, calendering, coiling and slitting, and its weight is 30g / m 2 .

Embodiment 1

[0027] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of sisal pulp with low beating degree and high beating degree:

[0028] Sisal pulp with low beating degree: 20 parts

[0029] High beating degree sisal pulp: 80 parts

[0030] The beating degree and wet weight of low beating degree sisal pulp are 40°SR and 10g respectively, and the beating degree and wet weight of high beating degree sisal pulp are 90°SR and 5.6g respectively. The beating machine is carried out through free beating, and the beating concentration is 2.5%. The high beating degree sisal pulp is beaten by three double-disk refiners, and the beating concentration is 3.5%. After the beating is completed, it is formed by double cylinders and compounded. After drying, dip-coat nano-cellulose and carboxyl-modified PVA in the machine. The concentration of the coating solution is 2%, and the coating amount is 0.4g / m 2 After coating, the fin...

Embodiment 2

[0032] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of sisal pulp with low beating degree and high beating degree:

[0033] Sisal pulp with low beating degree: 20 parts

[0034] High beating degree sisal pulp: 80 parts

[0035] The beating degree and wet weight of low beating degree sisal pulp are 48°SR and 9.6g respectively, and the beating degree and wet weight of high beating degree sisal pulp are 92°SR and 5.4g respectively. It is carried out through free beating in the type beater, and the beating concentration is 2.5%. The high beating degree sisal pulp is beaten by three double-disk refiners, and the beating concentration is 3.5%. After the beating is completed, it is formed by double cylinders and compounded. After drying, dip-coat nano-cellulose and carboxyl-modified PVA in the machine. The concentration of the coating solution is 2%, and the coating amount is 0.4g / m 2 After coating, the ...

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

No PUM Login to view more

Abstract

The invention relates to electrolytic capacitor paper and a preparation method thereof. Raw paper pulp of voltage-resistant electrolytic capacitor paper is composed of low-beating-degree sisal pulp and high-beating-degree sisal pulp according to a mass ratio of 20-40:80-60, beating degree of the low-beating-degree sisal pulp is 20-60 degrees SR while wet weight of the same is 2-16g, and beating degree of the high-beating-degree sisal pulp is 60-98 degrees SR while wet weight of the same is 2-10g; the raw paper pulp is formed and composited through the twin-cylinder net, coating liquid is coated on the surface of paper after pressing and drying, coating amount is 0.2-1.2g / m2, and the coating liquid is composed of nano cellulose and carboxy modified PVA according to a mass ratio of 4:3-1:10.The electrolytic capacitor paper has high strength, good water absorbing performance, low loss and excellent voltage resistance, and voltage resistance value is increased by more than 80V.

Description

technical field [0001] The invention relates to a preparation method of electrolytic capacitor paper. Background technique [0002] Electrolytic capacitor paper is one of the key materials for the preparation of electrolytic capacitors. Its main function is to isolate the cathode and anode in the capacitor, absorb and maintain the electrolyte, also known as separator paper. [0003] Electrolytic capacitor paper belongs to the category of special paper and electronic components. Therefore, different from ordinary paper, electrolytic capacitor paper has the following requirements: (1) The purity should be high, and the impurities that affect the performance of the electrolyte and electrode foil should be strictly controlled; (2) The paper quality should be uniform, the thickness and tightness should be uniform, the fiber arrangement should be uniform, and there should be no paper defects such as holes and fiber bundles; (3) There must be necessary electrical and mechanical str...

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 Applications(China)
IPC IPC(8): D21F11/08D21H11/12D21H19/20D21H19/34D21H21/20D21D1/02D21D1/30D21H27/00
CPCD21F11/08D21D1/02D21D1/303D21H11/12D21H19/20D21H19/34D21H21/20D21H27/00
Inventor 刘成跃陈万平雷荣左磊刚李南华颜鲁鸣占浩杜献勇郑伟峰
Owner ZHEJIANG KAN SPECIAL PAPER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap