PA6/PVA复合纳米纤维的制备及性能研究

采用静电纺丝法制备了PA6/PVA复合纳米纤维.分析了不同质量比的PA6/PVA共混纺丝溶液的粘度、电导率、表面张力,并探讨其静电纺丝效果.采用扫描电镜、红外光谱、表面张力仪等对纳米纤维膜的形貌结构、成分相容性及亲水性能进行表征.结果表明,在纺丝电压为19kV、纺丝距离为20cm、丝液流量为0.2mL/h的条件下,共混溶液质量比为12%∶4%时的静电纺丝所得纤维具有良好的形貌,复合纳米纤维中PA6与PVA具有良好的相容性,并有效地克服了纯纺PVA纳米纤维在水溶液中出现的过度溶胀问题.

Research of preparation and property of PA6/PVA composite nanofibers

Electrospinning method was used to fabricate PA6 and PVA composite nanofibers.The viscosity,conductivity and surface tension of PA6/PVA blended electrospun solutions with different concentration ratio were analyzed,and their influences on the electrospinning was investigated.The morphology of the nanofiber mats,the compatibility and hydrophilic of composition were characteristiced by scanning electron microscopy,Infrared Spectroscopy and the determination of surface tension.The results show that well-shaped fibers were obtained when the concentration ratio of PA6/PVA was 12%∶4%,the spinning voltage was 19 KV,the collecting distance was 16 cm and the extruding speed was 0.2 mL/h.PA6/PVA prossessed perfect nanofibrous morphology and eliminated the excess swelling in aqueous solution effectively.