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Low-loss electrolytic capacitor paper and preparation method thereof

An electrolytic capacitor paper, low loss technology, applied in pulp beating method, special paper, paper and other directions, can solve problems such as low cost and low ESR value, achieve significant market prospects and practical significance, reduce leakage current, and high strength.

Inactive Publication Date: 2019-01-15
ZHEJIANG KAN SPECIAL PAPER CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the manufacture of low-loss electrolytic capacitor paper, the raw materials are generally Manila hemp pulp, Spanish grass pulp, sisal pulp and tencel fiber. ESR value

Method used

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  • Low-loss electrolytic capacitor paper and preparation method thereof

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Effect test

example 2

[0032] After the asparagus pulp is decomposed, it is washed with sulfuric acid solution, the pH of the washing solution is 2, the washing time is 60min, the washing concentration of the slurry is 6%, and after washing, it is rinsed with deionized water until the pH of the rinsing solution is 6~ 8. After rinsing is completed, the slurry is mixed and beaten, the beating concentration is 4%, and the beating degree is 80 ° SR, after beating, it is configured into a mixed slurry with a mass concentration of 2%, and the mixed slurry is wet-formed through a rotary screen / rotary screen, with a forming concentration of 0.08%, and then squeezed, dried, calendered, rolled, and separated Cutting to obtain low-loss electrolytic capacitor paper, paper detection quantitative, thickness, tightness, longitudinal tensile strength, water absorption height, uniformity and other indicators, made into capacitor detection capacity, internal resistance, leakage current and other indicators.

[0033]...

Embodiment 1

[0036] Mix pineapple leaf pulp, asparagus pulp, and Achnatherum splendens pulp evenly. The dry mass percentages of the three kinds of pulp are 20%, 70%, and 10% respectively. After the pulp is decomposed, it is washed with sulfuric acid solution. The pH of the washing solution is 2. The washing time is 60 minutes, the slurry washing concentration is 6%, and the deionized water is used for rinsing after washing until the pH of the rinsing solution is 6-8. After rinsing is completed, the slurry is mixed and beaten, the beating concentration is 4%, and the beating degree is 80 ° SR, after beating, it is configured into a mixed slurry with a mass concentration of 2%, and the mixed slurry is wet-formed through a rotary screen / rotary screen, with a forming concentration of 0.08%, and then squeezed, dried, calendered, rolled, and separated Cutting to obtain low-loss electrolytic capacitor paper, paper detection quantitative, thickness, tightness, longitudinal tensile strength, water ...

Embodiment 2

[0038] Mix the pineapple leaf pulp, asparagus pulp, and Achnatherum splendens pulp evenly. The dry mass percentages of the three kinds of pulp are 30%, 60%, and 10% respectively. After the pulp is decomposed, it is washed with sulfuric acid solution. The washing time is 60 minutes, the slurry washing concentration is 6%, and the deionized water is used for rinsing after washing until the pH of the rinsing solution is 6-8. After the rinsing is completed, the slurry is mixed and beaten, the beating concentration is 4%, and the beating degree is 85 ° SR, after beating, it is configured into a mixed slurry with a mass concentration of 2%, and the mixed slurry is wet-formed through a rotary screen / rotary screen, with a forming concentration of 0.08%, and then squeezed, dried, calendered, rolled, and separated Cutting to obtain low-loss electrolytic capacitor paper, paper detection quantitative, thickness, tightness, longitudinal tensile strength, water absorption height, uniformity...

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Abstract

The invention belongs to the field of electrolytic capacitor paper, and particularly relates to low-loss electrolytic capacitor paper. The low-loss electrolytic capacitor paper comprises the followingraw material components in terms of absolute dry mass: 10%-80% of pineapple leaf pulp, 10%-80% of chinese alpine rush pulp and 5%-50% of splendid achnatherum pulp. The low-loss electrolytic capacitorpaper adopts the pineapple leaf pulp, the the chinese alpine rush pulp and the splendid achnatherum pulp as the raw material components, and the obtained composite paper is high in strength, and lowin ESR value; meanwhile, good water absorption can still be kept under the condition of relatively high pulping degree.

Description

technical field [0001] The invention belongs to the field of electrolytic capacitor paper, in particular to a low-loss electrolytic capacitor paper. Background technique [0002] Electrolytic capacitor paper is one of the indispensable raw materials for the preparation of electrolytic capacitors. On the one hand, the electrolytic capacitor paper plays the role of isolating the anode foil and the cathode foil in the capacitor, preventing the anode foil and the cathode foil from direct contact and short circuit; on the other hand, the foil and the paper After winding, the electrolyte is soaked, and the working electrolyte is absorbed through the porosity of the electrolytic paper to play the role of the cathode carrier. The performance of paper has a great influence on capacitors. Electrolytic capacitor paper not only requires high chemical purity and good liquid absorption, but also requires low density, uniform thickness, and certain mechanical strength to meet the productio...

Claims

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Application Information

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IPC IPC(8): D21C9/02D21D1/02D21H11/12D21H15/02D21H15/10D21H27/00
CPCD21C9/02D21D1/02D21H11/12D21H15/02D21H15/10D21H27/00
Inventor 毛香琴左磊刚李南华谢培鑫郑伟峰杨坚多汪金佩黄开庆孔庾玲周丽文
Owner ZHEJIANG KAN SPECIAL PAPER CO LTD
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