聚丙烯腈纳米纤维长丝的制备及热处理对其性能的影响

摘要/Abstract

摘要：

通过设计并自组装的动态水浴静电纺丝装置，成功收集到连续的聚丙烯腈（PAN）纳米纤维长丝，并对其进行干热处理和湿热拉伸处理。采用环境扫描电子显微镜（SEM）、X 射线衍射（XRD）等手段对不同工艺条件下制备的PAN纳米纤维长丝特性进行表征分析，得到最佳工艺条件及热处理对PAN纤维特征及其结晶度的影响规律。结果表明：纤维平均直径随着PAN质量百分数的增加而增大，随着纺丝电压升高而减小；热处理可以使纤维致密化，其强度也得到提高。

关键词: 静电纺丝, 聚丙烯腈, 热处理, 纳米纤维长丝

Abstract:

Continuous polyacrylonitrile (PAN) based nanofiber filament yarns were successfully obtained by a self-designed electrospinning device with dynamic water bath. The yarns were stretched by drying heating and wet heating. The PAN-based nanofiber filament yarn prepared under different conkitions were characterized and investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD) , and the optimal conditions for resultant yarns and the influence of dry heat-finishing and teat stretching finishing on the properties and crystallinity of the yarns were obtained. It was found that the diameter of the fiber increased with the increase of mass percent of PAN and with the decrease of electrospinning voltage. The higher the receiving distance, the finer the fiber linear density. After beat finishing, fiber is densified and its strengh is increased.

Key words: electrospinning, polyacrylonitrile, heat-finishing, nanofiber filament

吴清鲜姚金波刘佳雨王魁. 聚丙烯腈纳米纤维长丝的制备及热处理对其性能的影响[J]. 纺织学报, 2015, 36(09): 7-12.

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