Abstract

Conductive fibers are widely used in coatings and related applications. An effective production method is important. In this work, reduced graphene oxide (rGO) was added into the solution of poly(3,4-ethylenedioxythiophene) (PEDOT), poly(styrenesulfonate) (PSS) and polyvinyl alcohol (PVA). The rGO/PEDOT: PSS/PVA conductive nanofibers were prepared by electrospinning using a high-speed horizontal rotating collector instead of a traditional plane collector. The thermal behavior of composite nanofibers with rGO showed good stability compared with PEDOT: PSS/PVA nanofibers. The results show that the conductivity of nanofibers film was enhanced significantly by 100% when the content of 0.2% rGO in the PEDOT: PSS/PVA nanofiber. Further increase of rGO component content resulted in a limited increase in conductivity but with a sharp decline of the mechanical properties of the fibers. The tensile property of the nanofibers gained a significant improvement by 46.9% and 66.5% in the arc and radial direction, which indicates that high-speed horizontal rotating reception can make the texture more regular and stronger in the process of electrospinning.

摘要

导电纤维广泛用于涂料和相关应用。有效的生产方法很重要。在这项工作中，将还原氧化石墨烯 (rGO) 添加到聚 (3,4-乙烯二氧噻吩) (PEDOT)、聚 (苯乙烯磺酸盐) (PSS) 和聚乙烯醇 (PVA) 的溶液中。rGO/PEDOT: PSS/PVA 导电纳米纤维是使用高速水平旋转收集器代替传统的平面收集器通过静电纺丝制备的。与 PEDOT: PSS/PVA 纳米纤维相比，具有 rGO 的复合纳米纤维的热行为表现出良好的稳定性。结果表明，当PEDOT:PSS/PVA纳米纤维中rGO含量为0.2%时，纳米纤维薄膜的电导率显着提高了100%。rGO 成分含量的进一步增加导致电导率增加有限，但纤维的机械性能急剧下降。纳米纤维的拉伸性能在圆弧和径向分别提高了46.9%和66.5%，这表明高速水平旋转接收可以使静电纺丝过程中的织构更规则、更强。