Low-tightness carbonization-free solid electrolytic capacitor paper and preparation method and application thereof

Abstract

The invention belongs to the field of electrolytic capacitor paper, and particularly relates to low-tightness carbonization-free solid electrolytic capacitor paper and a preparation method and application thereof. The invention relates to low-tightness carbonization-free solid electrolytic capacitor paper, the tightness of the electrolytic capacitor paper is 0.32-0.38 g/cm < 3 >, and the electrolytic capacitor paper is prepared from the following components in percentage by dry weight: 40%-60% of jute pulp and 60%-40% of polyester fiber; the beating degree of the jute pulp is 35-55 degrees SR, the wet weight of the jute pulp is 10-30 g, the pulp forming mass percent concentration after pulp grinding is 2.0-3.5%, the length of the polyester fibers is 2-10 mm, and the fineness of the polyester fibers is 0.1-3 dtex; the electrolytic capacitor paper is made by adopting a rotary screen forming paper machine, the speed of the paper machine is 80-120m/min, the mass percent concentration of upper screen pulp flow is 0.01-0.2%, a pulp homogenizing roller is arranged at the bottom of a pulp inlet flow channel of a rotary screen forming device, and the clockwise rotating speed of the pulp homogenizing roller is 35-50R/min. The tensile strength of the paper and the uniformity value of the paper are improved, and the production requirements and the performance requirements of downstream customers on the paper are met.

Description

technical field [0001] The invention belongs to the field of electrolytic capacitor paper, and in particular relates to a low-density carbonization-free solid electrolytic capacitor paper and a preparation method and application thereof. Background technique [0002] The electrolyte in a solid electrolytic capacitor is a solid conductive polymer material. The structure of a solid electrolytic capacitor includes an anode, a cathode, electrolytic paper, and a solid conductive polymer material. Electrolytic capacitor paper is one of the indispensable raw materials for the preparation of electrolytic capacitors. In capacitors, it is mainly used to absorb conductive polymer monomers and oxidants to form polymers. short circuit. [0003] The traditional electrolytic capacitor paper is all cellulose material, which has a weak adsorption capacity for monomers. At the same time, cellulose contains a large number of hydroxyl groups, which will cause side reactions during the polymeri...

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Problems solved by technology

[0006] Manila hemp pulp and sisal pulp are usually used as hemp pulp fibers in the above two patents, but Manila he

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