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Spray preparation method of voltage withstanding electrolytic capacitor paper

A technology of electrolytic capacitor paper and pressure resistance, applied in the direction of hybrid capacitor separator, special paper, paper, etc., to achieve the effect of good strength, good loss value and good water absorption performance

Inactive Publication Date: 2018-06-29
ZHEJIANG KAN SPECIALITIES MATERIAL +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Spray preparation method of voltage withstanding electrolytic capacitor paper
  • Spray preparation method of voltage withstanding electrolytic capacitor paper

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example 2

[0022] Sisal pulp with low beating degree: 40 parts

[0023] High beating degree sisal pulp: 60 parts

[0024] The beating degree and wet weight of low beating degree sisal pulp are 45°SR and 8g 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 being pressed, it is dried, calendered, coiled and cut to obtain the finished product, and its quantitative is 30g / m 2 .

Embodiment 1

[0026] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of low beating degree sisal pulp and high beating degree sisal pulp:

[0027] Sisal pulp with low beating degree: 20 parts

[0028] High beating degree sisal pulp: 80 parts

[0029] 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 being squeezed, the mixture of carboxyl derivatives of nanocellulose and PVA is sprayed by spraying. The concentration of the coating solution is 0.5%. The carboxyl derivative...

Embodiment 2

[0031] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of low beating degree sisal pulp and high beating degree sisal pulp:

[0032] Sisal pulp with low beating degree: 20 parts

[0033] High beating degree sisal pulp: 80 parts

[0034] The beating degree and wet weight of low beating degree sisal pulp are 45°SR and 8g 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 being squeezed, the mixture of carboxyl derivatives of nanocellulose and PVA is sprayed by spraying. The concentration of the coating solution is 0.5%. The carboxyl derivatives...

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Abstract

The invention relates to electrolytic capacitor paper and a preparation method thereof. According to a spray preparation method of the voltage withstanding electrolytic capacitor paper, body paper pulp of the electrolytic capacitor paper comprises sisal pulp with low beating degree and sisal pulp with high beating degree, wherein the beating degree of the sisal pulp with low beating degree is 20-60-degree SR, and wet weight is 2-16 g, the beating degree of the sisal pulp with high beating degree is 60-98-degree SR, and wet weight is 2-10 g; the body paper pulp is subjected to double-cylinder forming, compounding and squeezing, then a coating liquid with the coating weight of 0.2-1.0 g / m<2> is sprayed, the coating liquid is prepared from nanocellulose and carboxyl modified PVA, and the massratio of nanocellulose to carboxyl modified PVA is 3:7-1:9. The voltage withstanding electrolytic capacitor paper prepared through body paper production and spray has the advantages of higher strength, good water absorptivity, proper loss value and excellent voltage withstanding performance, and the voltage withstanding value is increased by 80 V or more.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H11/12D21H19/20D21H19/34D21H23/50D21F11/08H01G11/52
CPCY02E60/13D21H27/00D21F11/08D21H11/12D21H19/20D21H19/34D21H23/50H01G11/52
Inventor 刘成跃颜鲁鸣陈然李南华雷荣杜献勇梁勇军谢培鑫郑伟峰
Owner ZHEJIANG KAN SPECIALITIES MATERIAL
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