Bi‐component, polyacrylonitrile (PAN)/carbon nanotube (CNT) fibers were processed, at different core‐sheath area ratios, by gel spinning. A percolated CNT network at 10 wt% CNT in the sheath enhanced electrical conductivity as compared to the neat PAN fiber, while PAN polymer in the core contributed to the good mechanical properties. Fibers with relatively thin sheath allowed overall CNT loading as low as 3.7 wt% to be made with good electrical conductivity, and PAN stabilization by Joule heating was demonstrated. Such fibers with combined good mechanical properties and electrical conductivity can also potentially be used for electrical heating of fabrics, for making smart textiles, and for electromagnetic interference shielding.

中文翻译：

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低碳纳米管负载下聚丙烯腈/碳纳米管（CNT）纤维的结构，性能和应用

双组分聚丙烯腈（PAN）/碳纳米管（CNT）纤维通过凝胶纺丝以不同的芯鞘面积比进行加工。与纯PAN纤维相比，皮层中CNT含量为10 wt％的渗透CNT网络增强了导电性，而纤芯中的PAN聚合物则具有良好的机械性能。具有相对较薄的外皮的纤维允许以良好的导电性制备低至3.7 wt％的总CNT负载，并且证明了通过焦耳加热实现PAN稳定。具有良好的机械性能和导电性的这种纤维还可以潜在地用于织物的电加热，用于制造智能纺织品以及用于电磁干扰屏蔽。