水溶性PVA纤维的黏结状态及其对隔膜纸性能的影响  

The Adhesive State of Water Soluble PVA Fiber and Its Influence to the Performance of Separator

作　　者：王宜[1] 张文娜[1] 梁云[1] 蒋健美[1] 胡健[1] 王习文[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640

出　　处：《造纸科学与技术》2009年第5期42-45,共4页Paper Science & Technology

摘　　要：水溶性PVA纤维常作为高性能碱锰电池隔膜纸的黏结剂，水溶性PVA纤维在干燥过程中的热熔粘结状况严重影响着隔膜纸的各项性能。本文系统研究了水溶性PVA纤维的水溶过程变化、干燥温度对其粘结状态的影响以及对碱锰电池隔膜纸性能的影响。结果表明：在水溶温度为60℃的PVA纤维的水溶过程中，40-50℃间纤维会发生迅速的润胀收缩，呈现半透明状；纯水溶PVA纤维纸在50—60℃干燥时既具有较好的黏结作用又保证具有一定的孔隙率；采用水溶温度为60℃的水溶性PVA纤维作为碱锰电池隔膜纸的黏结剂，干燥温度在60—70℃起到的黏结效果较好。Water soluble PVA fiber is usually used as binder of high performance alkaline manganese battery separator, and it＇s adhesive state can obviously influence the performance of separator. In this paper, we studied the variation of water soluble PVA fiber in water solution, the effect of drying temperature on its adhesive state and performance of separator. The results show the water soluble PVA fiber swells rapidly in water between 40℃ and 50℃ and appears semi-transparent, the paper entirely made of water soluble PVA fiber has good adhesive state and porosity at 50 - 60℃ heat condition ; the desirable heat treatment condition for the water soluble PVA fiber used as binder of separator is from 60℃ to 70℃.

关 键 词：水溶性PVA纤维 黏结状态 隔膜纸 

分 类 号：TQ342[化学工程—化纤工业]