聚丙烯非织造布的驻极体电荷存储特性和稳定性  

Charge characteristics and stability of non-woven polypropylene fabric electrets

作　　者：陈钢进[1] 肖慧明[1] 王耀翔[1] 

机构地区：[1]浙江科技学院功能材料研究所,浙江杭州310012

出　　处：《纺织学报》2007年第9期125-128,共4页Journal of Textile Research

基　　金：国家自然科学基金资助项目(90406024);同济大学波与材料微结构重点实验室基金资助项目(5006TJWML001)

摘　　要：在综述聚丙烯非织造布驻极体电荷存储特性和稳定性最新研究成果的基础上,结合聚合物驻极体材料中电荷存储的基本规律和聚丙烯非织造布的化学结构特点,分析聚丙烯非织造布驻极体电荷的存储特性和稳定性。指出当电流通过介质时空间电荷在晶粒的2个端面上的积聚、结晶区及结晶区和非结晶区之间产生的界面极化是聚丙烯非织造布驻极体电荷的2个主要来源,并就如何提高聚丙烯非织造布驻极体空气过滤材料的电荷稳定性提出了看法。The updated research on charge characteristics and stability of non-woven polypropylene fabrics was reviewed, and the charge characteristics and stability of non-woven polypropylene fabrics were analyzed in combination with the basic rules of charge storage stability of polymer electrets and the chemical and web structure of non-woven polypropylene fabrics. It points out that the charge storage of non-woven polypropylene fabric electrets mainly comes from the charge trapping at crystallites and interface polarization between crystallites or between crystallites and non-crystallites when current flows through the medium. Suggestion is given as how to improve the charge storage stability of non-woven polypropylene fabrics electrets used as air filter material.

关 键 词：聚丙烯非织造布 驻极体 电荷稳定性 空气过滤材料 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计]