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Electrolytic paper for lightning-stroke-resistant capacitor and preparation method of electrolytic paper

A capacitor and electrolytic paper technology, applied in pulp beating method, special paper, paper and other directions, can solve the problems of lack of high pressure resistance, low overall strength, short circuit of capacitors, etc., to achieve improved pressure resistance, good moisture permeability, Reduce the effect of short circuits

Active Publication Date: 2020-07-17
浙江莱勒克纸业有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] As the first filter component following the rectification of the electronic circuit, the electrolytic capacitor is one of the indispensable components in the power supply of various electronic products. As large as a value far exceeding the rated voltage of the capacitor, according to this situation, anti-lightning electrolytic capacitors came into being; the electrolytic paper in the existing anti-lightning capacitors was found to be lacking in high-voltage resistance and poor in moisture permeability during use. , it is easy to cause a short circuit of the capacitor, and the overall strength is not high

Method used

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  • Electrolytic paper for lightning-stroke-resistant capacitor and preparation method of electrolytic paper
  • Electrolytic paper for lightning-stroke-resistant capacitor and preparation method of electrolytic paper
  • Electrolytic paper for lightning-stroke-resistant capacitor and preparation method of electrolytic paper

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Embodiment 2

[0038] The basic principle of this embodiment is the same as that of Embodiment 1, the difference is: an electrolytic paper for lightning-resistant capacitors, which is composed of a pressure-resistant layer paper 1 and an absorption layer paper 2, and the pressure-resistant layer paper 1 wraps the Absorbing layer paper 2, the pressure-resistant layer paper 1 includes several tubular fiber units 11, the absorbent layer paper 2 is composed of a fine cellulose fiber non-woven fabric layer 21 and a hemp fiber layer 22, in this embodiment , the hemp fiber is selected from sisal, with a beating degree of 32 ° SR, made of sisal paddle, paper-making and drying, and a non-woven fabric of fine cellulose fibers formed by paper-making on the non-woven fabric layer. The fine cellulose fibers account for 90% of the weight of the fine cellulose fiber non-woven fabric, and the fine cellulose fiber non-woven fabric is dried and heat-treated after drying, and then the fine cellulose fiber non-w...

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Abstract

The technical scheme of the invention is realized as follows that: an electrolytic paper for a lightning-stroke-resistant capacitor comprises a pressure-resistant layer paper and an absorption layer paper and is characterized in that the pressure-resistant layer paper wraps the absorption layer paper from the two sides, the pressure-resistant layer paper comprises a plurality of tubular fiber units, and the absorption layer paper comprises a fine cellulose fiber non-woven fabric layer containing fine cellulose fibers and a bast fiber layer. The invention further provides a method for preparingthe electrolytic paper for the lightning-stroke-resistant capacitor. The electrolytic paper has the beneficial effects that the problem of holes of existing electrolytic paper is solved, the short-circuit probability of a capacitor is reduced, and the electrolytic paper is high in overall strength and excellent in high-pressure resistance and moisture permeability.

Description

technical field [0001] The invention relates to the technical field of electrolytic capacitors, in particular to electrolytic paper for anti-lightning capacitors and a preparation method thereof. Background technique [0002] Electrolytic paper, that is, electrolytic capacitor paper, is one of the three key materials that constitute aluminum electrolytic capacitors. It is used as an adsorption carrier for the electrolyte, and together with the electrolyte, it forms the cathode of the aluminum electrolytic capacitor, and at the same time plays the role of isolating the two electrode foils. Also known as isolation paper; the quality of the electrolytic paper directly affects the four main indicators of the loss, leakage current, capacity, and rated voltage of the aluminum electrolytic slave. Electrolytic capacitor paper should meet the following requirements: First, the purity must be high, and the impurities that affect the performance of the electrolyte and electrode foil mu...

Claims

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Application Information

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IPC IPC(8): D21H27/38D21F11/04D21F11/08D21D1/02D21F5/18
CPCD21D1/02D21F5/18D21F11/04D21F11/08D21H27/38
Inventor 徐皓郑鹏飞周春生刘建黄萍张志江朱谢兰王毅
Owner 浙江莱勒克纸业有限公司
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