【作者】 周国栋； 彭懋；

【Author】 ZHOU Guodong;PENG Mao;Department of Polymer Science and Engineering,Zhejiang University;

【机构】 浙江大学高分子科学与工程学系；

【摘要】 <正>芳香族聚酰胺纤维(简称芳纶)是一类高性能的特种纤维,因其突出的力学性能(如强度、模量、韧性)、电学性能(低介电常数)、化学稳定性以及其他方面的性能(如燃、自润滑)而备受关注,广泛应用于军工和民用的许多领域,成为高性能纤维的重要成贝之一。纳米纤维一般指直径处于纳米尺度的纤维状材料,受纳米尺寸的影响而具有表面效应、更多还原

【Abstract】 As the air pollution gets worse over time,the concentration of PM2.5 and PM10 in atmosphere are rising rapidly and severely threats humans’ health,therefore,air filtration materials are drawing more attention than ever before.Traditional respirators are struggling to satisfy people’s needs,so more attention and efforts are paid on nanofiber-based filtration materials.Nanofibers are fibers with diameters in the rage of 1-100 ran,thus possessing nano-sized effects such as high specific surface area and transparency.Aramid nanofibers combine the excellent properties of aromatic polyamide and nanofibers,which make it promising building block in many fields including air filtration.This paper reviews the preparation methods and applications of nanofibers,summarizes the approaches to the fabrication of air filtration materials based on aramid nanofibers,and provides an outlook for this field according to the knowledge of the author.更多还原