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Na Cl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。
In order to make filtering mask with nontoxicity, harmless and high efficiency, composite fihering material made by electrospun polyamide 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 meltblown nonwoven fabric. The filtration efficiency to NaC1 aerosol of composite material electrospun for 90 min was increased to 99% , which was obviously higher than polypropylene inch-blown nonwoven fabric by about 29%. The pore size, filtering pressure and ventilation property of the composite material were decreased obviously with increasing electrospun time, but the water vapor permeability was not changed obviously.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2015年第7期12-16,共5页
Journal of Textile Research
基金
苏州市科技支撑计划项目(SG201408)
关键词
静电纺丝
锦纶6
壳聚糖
过滤性能
透气透湿性
electrospinning
polyamide 6
chitosan
filtration properties
permeability