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以涤纶长丝和生物可降解的聚己内酯(PCL)为原料,通过静电纺丝技术制备了不同浓度的PCL纳米纤维/涤纶包缠纱。利用扫描电镜(SEM)、单纱强力仪等仪器,测试观察了纳米纤维包缠纱的微观结构、机械拉伸性能、芯吸性能和回潮率。结果表明,纳米纤维完全包缠在涤纶长丝表面,且随着PCL溶液浓度的增加,纳米纤维的直径也增加。另外,由于纳米纤维的存在,PCL纳米纤维包缠纱的机械拉伸性能、芯吸性能和回潮率都优于纯涤纶长丝;但随着溶液浓度的增加,纳米纤维包缠纱的芯吸性能和回潮率略有降低。
Polyester filament yarn and biodegradable polycaprolactone (PCL) were used as raw materials to prepare PCL nanofiber / polyester wrapping yarn with different concentrations by electrospinning technology. The microstructures, mechanical tensile properties, wicking properties and moisture regain of nanofiber wrapped yarn were observed by scanning electron microscopy (SEM) and single yarn strength tester. The results show that the nanofibers are completely wrapped around the surface of the polyester filament, and the diameter of the nanofibers also increases with the increase of the concentration of PCL solution. In addition, due to the presence of nanofibers, mechanical tensile properties, wicking performance and moisture regain of PCL nanofibers wrapped yarns were better than those of pure polyester filaments. However, with the increase of solution concentration, the wicking of nanofibers Performance and regain slightly reduced.