Influence of draw ratio on the structure and properties of PEDOT-PSS/PAN composite conductive fibers
Influence of draw ratio on the structure and properties of PEDOT-PSS/PAN composite conductive fibers
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DOI：
10.1039/c4ra05952b
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发表时间：
2014-09
期刊：
影响因子：
3.9
通讯作者：
Xin Li;Yin Liu;Zheng-ying Shi;Congju Li;Guangming Chen
中科院分区：
文献类型：
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作者：
Xin Li;Yin Liu;Zheng-ying Shi;Congju Li;Guangming Chen
采用湿法纺丝法制备了以聚（3，4-乙撑二氧噻吩）-聚苯乙烯磺酸（PEDOT-PSS）溶液与聚丙烯腈（PAN）共混的复合导电纤维。采用SEM、FTIR、XRD、TG、四电极测试法和电子单纤维拉伸强度测试仪研究了拉伸倍数对纤维形态、结构、热降解性能、电导率和力学性能的影响。结果表明，随着拉伸倍数的增加，PEDOT-PSS/PAN复合导电纤维的结晶性能、导电性能和力学性能均得到改善。纤维的热稳定性与拉伸倍数几乎无关，随拉伸倍数的增加而略有下降。此外，拉伸比为6时，PEDOT-PSS/PAN纤维的电导率为5.0S cm-1，是拉伸比为2时的电导率的10倍。
Composite conductive fibers based on poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT-PSS) solution blended with polyacrylonitrile (PAN) were obtained via wet spinning. The influence of draw ratio on the morphology, structure, thermal degradation, electrical conductivity, and mechanical properties of the resulting fibers was investigated by SEM, FTIR, XRD, TG, the four-electrode measuring method and electronic single fiber tensile strength tester. The results revealed that the PEDOT-PSS/PAN composite conductive fibers' crystallization, electrical conductivity and mechanical properties were all improved with the increase of draw ratio. The thermal stability of the fibers was almost independent of draw ratio, and only decreased slightly with draw ratio. Besides, when the draw ratio was 6, the conductivity of the PEDOT-PSS/PAN fibers was 5.0 S cm−1, ten times the conductivity when the draw ratio was 2.