Method of preparing voltage-resistant electrolytic capacitor paper through in-machine coating
An electrolytic capacitor paper and coating technology, applied in pulp beating method, special paper, coating and other directions, to achieve the effects of excellent voltage resistance, good loss value and good strength
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[0023] Sisal pulp with low beating degree: 30 parts
[0024] High beating degree Manila hemp pulp: 70 parts
[0025] The beating degree and wet weight of low beating degree sisal pulp are 48°SR and 8.6g respectively, and the beating degree and wet weight of high beating degree sisal pulp are 90°SR and 5.6g respectively. It is carried out through free beating in the type beater, 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, and the finished product is obtained after drying, calendering, coiling and slitting, and its weight is 30g / m 2 .
Embodiment 1
[0027] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of sisal pulp with low beating degree and high beating degree:
[0028] Sisal pulp with low beating degree: 20 parts
[0029] High beating degree sisal pulp: 80 parts
[0030] 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 drying, dip-coat nano-cellulose and carboxyl-modified PVA in the machine. The concentration of the coating solution is 2%, and the coating amount is 0.4g / m 2 After coating, the fin...
Embodiment 2
[0032] A high-voltage resistant electrolytic capacitor paper, the base paper pulp of the electrolytic capacitor paper is composed of sisal pulp with low beating degree and high beating degree:
[0033] Sisal pulp with low beating degree: 20 parts
[0034] High beating degree sisal pulp: 80 parts
[0035] The beating degree and wet weight of low beating degree sisal pulp are 48°SR and 9.6g respectively, and the beating degree and wet weight of high beating degree sisal pulp are 92°SR and 5.4g respectively. It is carried out through free beating in the type beater, 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 drying, dip-coat nano-cellulose and carboxyl-modified PVA in the machine. The concentration of the coating solution is 2%, and the coating amount is 0.4g / m 2 After coating, the ...
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