静电纺高效防尘复合滤料的制备及其性能

纺织学报 ›› 2015, Vol. 36 ›› Issue (07): 12-16.

静电纺高效防尘复合滤料的制备及其性能

收稿日期:2014-07-14 修回日期:2015-03-13 出版日期:2015-07-15 发布日期:2015-07-20
通讯作者: 刘雷艮 E-mail:liuleiyin@aliyun.com

Preparation and properties of electrospun composite material for high-efficiency ash filtration

Received:2014-07-14 Revised:2015-03-13 Online:2015-07-15 Published:2015-07-20
Contact: Lei-Gen LIU E-mail:liuleiyin@aliyun.com

摘要/Abstract

摘要：

为获得无毒无害高效防尘口罩的过滤材料，采用静电纺丝技术制备直径为（0.088±0.01）μm的锦纶6 ∕ 壳聚糖（PA6/CS）共混纳米纤维，与丙纶熔喷非织造布复合形成高效防尘复合滤料，研究了静电纺丝时间对复合滤料表面形貌、孔径及其分布、过滤性能和透气透湿性能的影响。结果表明，静电纺（PA6/CS）纳米纤维层可显著提高丙纶熔喷非织造布的过滤效率，静电纺丝 90 min 后复合滤料对 NaCl 气溶胶的过滤效率达到99%以上，明显高于丙纶熔喷非织造布的过滤效率（29%），但是随着静电纺丝时间的延长，复合滤料的孔径、过滤阻力和透气性能明显下降，而透湿性能变化不明显。

关键词: 静电纺丝, 锦纶 6 , 壳聚糖, 过滤性能, 透气透湿性

Abstract:

In order to make filtering mask with nontoxicity, harmless and high efficiency, composite filtering material made by electrospun 6/chitosan (PA6/CS) nanofibers and polypropylene melt-blown nonwoven fabric has been prepared. The diameter of electrospun PA6/CS nanofiber was (0.088±0.01)μm. The influence of electrospun time on surface morphology, pore size, filtration efficiency, ventilation property and water vapor permeability were investigated. The results showed that the electrospun PA6/CS nanofibers can significantly improve filtration efficiency of polypropylene melt-blown nonwoven fabric. The filtration efficiency to NaCl aerosol of composite material electrospun for 90 min was increased to 99%, which was obviously higher than polypropylene melt-blown nonwoven fabric by about 29%. The pore size, filtration pressure and ventilation property of the composite material were decreased obviously with increasing electrospun time, but the water vapor permeability was not changed obviously.

Key words: electrospinning, polyamide 6, filtration properties, permeability

中图分类号:

TQ050.4+3

刘雷艮沈忠安洪剑寒. 静电纺高效防尘复合滤料的制备及其性能[J]. 纺织学报, 2015, 36(07): 12-16.

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