HU Junmei¹，LIU Jiaqi¹，WANG Bin^1,2，SUN Zhiming³，ZHENG Shuilin³

(1. School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China;2.Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber,Beijing Institute of Fashion Technology, Beijing 100029, China; 3.School of Chemistry and Environmental Engineering,China University of Mining & Technology (Beijing), Beijing 100083, China)

Abstract: The attapulgite-polyacrylonitrile (ATP-PAN) composite nanofiber membrane was prepared via electrospinning technology, in which the attapulgite was modified firstly by using three different modifying agents. In order to optimize the electrospinning fabrication condition, the influence of modifying agent on the structure and air filtration property of composite membrane was investigated. The results show that the attapulgite nanorods modified by combination of octadecyl trimethylammonium bromide and methallyl propyl trimethoxysilane have better distribution in composite nanofiber membrane, and the diameter of the fibers is 40～120 nm. In addition, the successful preparation of ATP-PAN composite nanofiber membrane was further proved by using infrared spectrometer, thermogravimetric analyzer and X-ray diffractometer. Taking phthalate dioctyl (DOP) aerosol particles as target, it is found that adding attapulgite leaded air filtration performance of composite membrane improves significantly, the filtration efficiency reaches 98.670% and the pressure drop is only 106.7 Pa and quality factor is 0.407 3 Pa-1. This indicates that taking attapulgite as functional additive of composite nanofiber membranes has a good application prospect in air filtration field.

Keywords: electrospinning; attapulgite; nanofiber membrane; air filtration

中图分类号：TD985

文献标志码：A

收稿日期： 2018-11-27，修回日期：2019-01-08，在线出版时间：2019-01-15 13:29。

基金项目：北京市优秀人才项目，编号：2017000020124G089；北京服装学院高水平教师队伍建设专项资金资助项目，编号：BIFTQG201807；北京服装学院2018年国家级大学生创新创业训练项目。

第一作者简介：狐竣梅(1997—)，女，硕士研究生，研究方向为高分子纳米纤维膜材料。E-mail：18811651933@163.com。

通信作者简介：汪滨(1987—)，男，讲师，博士，研究方向为纳米纤维膜与智能可穿戴器件。E-mail：20150010@bift.edu.cn。