纺丝工艺对静电纺纳米纤维包芯纱包覆性能的影响  

Influence of Spinning Process on Covering Property of Core-Spun Nanofiber Yarn

作　　者：刘呈坤[1,2,3] 贺海军[1] 孙润军[1] 于群[1] 李博昱[1] 

机构地区：[1]西安工程大学纺织与材料学院,陕西西安710048 [2]东华大学纺织学院,上海201620 [3]山东如意集团,山东济宁272073

出　　处：《高分子材料科学与工程》2016年第12期82-86,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51503168);陕西省教育厅重点实验室科研计划(13JS035);西安工程大学纺织科学与工程学科建设经费(10709-0821);西安工程大学研究生创新基金(CX201601);山东省博士后创新项目专项资金资助

摘　　要：提出了一种制备连续纳米纤维包芯纱的方法,利用接地平行铝片作为接收装置,使得纳米纤维平行地搭接在2块铝片之间,处于2块铝片中央的芯纱通过绕自身纱轴旋转,将取向的纳米纤维卷绕在其表面。研究了平行铝片间距、纺丝电压、纺丝距离以及溶液流量对纳米纤维包芯纱包覆率及耐磨性的影响规律。结果表明,利用该方法制备的纳米纤维包芯纱包覆较为均匀,无露芯现象,并且芯纱表面纳米纤维直径分布均匀,排列整齐且具有良好的取向度。当平行铝片间距为2 cm,电压为17 k V,纺丝距离为14 cm,流量为1.0 m L/h时,电纺过程较稳定,包覆效果较好,包覆率最高可达41.9%,并且所得纳米纤维包芯纱的耐磨性与其包覆率成正相关关系,增磨率最大可达142.3%,同时其力学性能较原纱也有略微提高。A method of preparing continuous core-spun nanofiber yarn was proposed. Nanofibers were aligned between two parallel aluminum flakes, and then covered onto surface of core yarn to fabricate core-spun nanofiber yarn through rotation of core yam. Effects of span distance, applied voltage, collecting distance and flow rate on covering rate and abrasion resistance of core-spun nanofiber yarn were studied. Results show that nanofibers are covered onto.surface of core yam uniformly and possess a good alignment. Diameter distribution is also uniform. In addition, when span distance, applied voltage, spinning distance and flow rate are kept 2 cm, 17 kV, 14 cm and 1.0 mL/h, spinning process is stable and covering effect is good. The maximum covering rate and abrasion growth rate could reach 41.9%, 142.3% respectively, and there is a positive correlation between them. The mechanical property of yam after covering nanofiber also has a slight increase.

关 键 词：静电纺丝 纳米纤维包芯纱 包覆率 耐磨性 力学性能 

分 类 号：TQ340.649[化学工程—化纤工业]