静电纺PA6/CS复合纤维膜的过滤性能研究

Filtration properties of electrospun PA 6/CS composite fibrous membrane

采用自制单喷头静电纺丝设备,以聚丙烯熔喷非织造布为基布,制备静电纺聚酰胺6/壳聚糖(PA 6/CS)复合纤维膜,研究了静电纺丝时间对复合膜表面形貌、孔径和过滤性能的影响。结果表明:随着静电纺丝时间增加,复合纤维膜对Na Cl气溶胶的过滤效率显著增加,过滤阻力明显增加,品质因子先增加后减小;连续纺丝90 min后,复合纤维膜的过滤效率达到99%以上。

Electrospun PA 6/CS composite fibrous membrane was preparated on polypropylene melt-blown nonwovens by single jet electrospun equipment. The effluence of electrospun time to surface morphology, pore size, filtration properties was studied. The results show that the filtration efficiency and filtering press drop of composite fibrous membrane to NaCl aerosol was increased significantly, but the quality factor was increased firstly and decreased secondly. The filtration efficiency of composite fibrous membrane was increased to 99% for 90 rain.