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Diaphragm paper for mercury-free alkaline zinc-manganese dioxide cell, and preparation method of diaphragm paper

A technology of zinc-manganese battery and separator paper, which is applied in papermaking, paper coating, textile and papermaking, etc., can solve the problems of complicated preparation process and affecting the uniformity of finished separator paper.

Active Publication Date: 2015-05-20
浙江鹏辰造纸研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its characteristic is that this kind of diaphragm has good isolation performance and alkali resistance, high liquid absorption capacity and good storage stability. Its disadvantage is that the preparation process is more complicated, and the uniformity of the substrate's adsorption of aqueous solution may also affect the finished product. Uniformity of separator paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take 40 parts of superfine vinylon fiber (fiber length 3mm, fiber linear density 0.6dtex) into a dispersion bucket with agitator, add water and polyacrylamide dispersant, so that the concentration of superfine vinylon fiber in water is 0.5 % , fully stir and decompose until the fibers are completely dispersed into single fibers.

[0042] Take 32 parts of Tencel fiber (fiber length 4mm, fiber linear density 0.6dtex) into a beater that has stored an appropriate amount of water, the concentration of the fiber in water is 2%, first disperse for 20~30min, and then beat with a light knife 40~60min, when the fibers are completely dispersed and there are no pulp spots, stop beating when the beating degree of the test pulp is 25~30oSR, and put the pulp into the pulp mixing tank after the knife is started.

[0043] Take 28 parts of pulp fiber and put it into a beater that has stored an appropriate amount of water. The concentration of the fiber in water is 3%. First, disperse it ...

Embodiment 2

[0048] Take 45 parts of superfine vinylon fiber (fiber length 3mm, fiber fineness 0.5dtex)

[0049] Put it into a dispersing bucket with a stirrer, add water and polyethylene oxide dispersant to make the concentration of superfine vinylon fibers in water 0.5%, stir well, and disperse until the fibers are completely dispersed into single fibers.

[0050] Take 25 parts of Tencel fibers (fiber length 4mm, fiber fineness 0.5dtex) into a beater that has been stored with an appropriate amount of water, the concentration of the fibers in water is 2%, first disperse for 20~30min, and then beat with a light knife 40~60min, when the fibers are completely dispersed and there are no pulp spots, stop beating when the beating degree of the test pulp is 25~30oSR, and put the pulp into the pulp mixing tank after the knife is started.

[0051] Take 30 parts of pulp fiber and put it into a beater that has stored an appropriate amount of water. The concentration of the fiber in water is 4%. Firs...

Embodiment 3

[0055] Take 45 parts of superfine vinylon fiber (fiber length 6mm, fiber linear density 0.6dtex) and put it into a dispersion bucket with agitator, add water and polyethylene oxide dispersant, so that the concentration of superfine vinylon fiber in water is 0.6 % , fully stir and decompose until the superfine vinylon fibers are completely dispersed into single fibers.

[0056] Take 35 parts of Tencel fiber (fiber length 4mm, fiber linear density 0.6dtex) into a beater that has stored an appropriate amount of water, the concentration of the fiber in water is 3%, first thaw for 20~30min, and then beat with a light knife 40~60min, when the fibers are completely dispersed and there are no pulp spots, stop beating when the beating degree of the test pulp is 25~30oSR, and put the pulp into the pulp mixing tank after the knife is started.

[0057] Take 20 parts of pulp fiber and put it into a beater with proper amount of water. The concentration of the fiber in water is 4%. First, di...

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Abstract

The invention discloses diaphragm paper for a mercury-free alkaline zinc-manganese dioxide cell, and a preparation method of the diaphragm paper, and belongs to the technical field of fiber-containing paper and a preparation method thereof. A sizing agent comprises the following raw materials in parts by weight: 40-55 parts of superfine nylon fibers, 25-35 parts of tencel fibers and 20-30 parts of pulp fibers; the sizing agent is prepared by dispersing a dispersing agent by adopting a papermaking machine wet-process papermaking technology. The three types of fibers are mixed to prepare an alkaline zinc-manganese dioxide cell diaphragm, so that not only can the physical strength performance of the diaphragm paper be improved and the relatively good alkaline absorption performance can be guaranteed; due to the improvement of the strength of the diaphragm paper, the usage amount of the sizing agent can be properly reduced, so that the quantitation and the thickness fluctuation of the diaphragm paper can be favorably stabilized, and thus guarantee for meeting the use of the mercury-free alkaline zinc-manganese dioxide cell can be provided.

Description

technical field [0001] The invention belongs to the technical field of fiber-containing paper and its preparation method, in particular to a separator paper for mercury-free alkaline zinc-manganese batteries and its preparation method. Background technique [0002] The battery separator paper is placed between the positive and negative electrodes of the battery. It is insulated from electrons and must allow ions to pass through. It is the heart material of the battery. The quality of the battery separator directly affects the performance, storage performance and cycle life of the battery. Alkaline zinc-manganese battery separator paper is mainly used in primary alkaline-manganese batteries. The electrolyte concentration of alkaline-manganese batteries is 30%~40% (mass percentage) of potassium hydroxide solution, and the applicable temperature of the battery is -20°C~80°C. Therefore, the separator paper should have the following performance requirements: [0003] 1) It has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/16D21H15/10D21H21/16D21H19/20
Inventor 李荣年李红祝薛栋杰
Owner 浙江鹏辰造纸研究所有限公司
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