Alkali-resisting diaphragm material capable of rapidly absorbing liquid and production method thereof

Abstract

The invention discloses an alkali-resisting diaphragm material capable of rapidly absorbing liquid and a production method thereof. The method comprises the steps that cellulose triacetate is grafted to modified fiber, vinylon and tencel of a sulfonic acid group and a polyacrylamide wet strength agent, water is added, the mixture is mixed to be uniform, the product is diluted and thicken, molding, squeezing, drying, reeling, press polish management and other steps are carried out on a fourdrinier machine, and a paper functional material is obtained. The product has the advantages of being good in alkali resistance stability, high in liquid absorbing speed, small in shrinkage, long in working time and the like, is mainly applicable to a battery pack matched with a chemical power source and is short in activation time, and the service life of equipment is greatly prolonged.

Description

technical field

[0001] The invention relates to a rapid liquid-absorbing alkali-resistant diaphragm material and a production method thereof. Background technique

[0002] In recent years, with the development of high-mobility long-range cruise missile weapons, the power system on the missile requires the supporting chemical power supply to provide more durable power in time to achieve the purpose of accurately and quickly attacking long-range targets. Activation and long-lived properties. At present, killer weapons such as advanced cruise missiles, new-generation cruise missiles, and top-level maritime cruise technology missiles require the supporting power supply to be able to supply power within 1.5s, and the longest working time can reach 12000s. 2 to 4 times the time.

[0003] The diaphragm is an important part of the plate group in the battery pack. It can form sufficient electrochemical reaction process, ion migration channel and ensure enough electrolyte to partici...