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Electrolytic paper for anti-lightning capacitor and preparation method thereof

A technology of capacitors and electrolytic paper, which is applied in pulp beating methods, special paper, papermaking, etc., can solve problems such as lack of high-voltage resistance, low overall strength, short-circuit of capacitors, etc., and achieve improved compression resistance, good moisture permeability, and Reduce the effect of short circuit

Active Publication Date: 2021-11-30
浙江莱勒克纸业有限公司
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  • Abstract
  • Description
  • Claims
  • 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 anti-lightning capacitor and preparation method thereof
  • Electrolytic paper for anti-lightning capacitor and preparation method thereof
  • Electrolytic paper for anti-lightning capacitor and preparation method thereof

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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 solution of the present invention is achieved in the following way: an electrolytic paper for lightning-resistant capacitors, consisting of a pressure-resistant layer paper and an absorbing layer paper, characterized in that: the pressure-resistant layer paper wraps the absorbing layer paper from both sides, The pressure-resistant layer paper includes several tubular fiber units, and the absorbing layer paper includes a fine cellulose fiber non-woven fabric layer containing fine cellulose fibers and a hemp fiber layer; the present invention also provides a method for preparing the above-mentioned anti-lightning A method for using electrolytic paper for capacitors; the beneficial effects of the invention are: the hole problem of the existing electrolytic paper is solved, the short circuit probability of the capacitor is reduced, the overall strength of the electrolytic paper is high, and the high pressure resistance and moisture permeability are relatively excellent.

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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Patent Type & Authority Patents(China)
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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