论文部分内容阅读
将聚乙烯醇(PVA)水溶液与聚(3,4-乙撑二氧噻吩)-聚(对苯乙烯磺酸)(PEDOT∶PSS)水分散液混合制备纺丝液,以甲醇做为凝固剂,通过湿法纺丝及后处理工艺制备出PVA/PEDOT∶PSS共混纤维。在此基础上,对共混纤维进行不同时间的热定型处理,探究热定型时间对PVA/PEDOT∶PSS共混纤维性能的影响。借助红外光谱分析仪(FT-IR)、扫描电子显微镜(SEM)、高阻计和单纤维强力仪考察共混纤维的性能。结果表明:随着热定型时间的增加,制备出的PVA/PEDOT∶PSS共混纤维直径减小,随后表面出现灼烧痕迹;电导率与拉伸断裂强度均先增后降,热定型时间3min时电导率和拉伸断裂强度达到最大,分别为3.12S/cm和4.65cN/dtex;纤维拉伸断裂伸长持续降低。
A spinning solution was prepared by mixing polyvinyl alcohol (PVA) aqueous solution with poly (3,4-ethylenedioxythiophene) -poly (p-styrenesulfonic acid) (PEDOTPSPS) aqueous dispersion and using methanol as coagulant PVA / PEDOT:PSS blends were prepared by wet spinning and aftertreatment. On this basis, the heat-setting process of blended fibers was carried out at different times to investigate the effect of heat-setting time on the properties of PVA / PEDOT:PSS blend fibers. The properties of blends were investigated by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), high resistance meter and single fiber strength tester. The results showed that the diameter of PVA / PEDOT:PSS blends decreased with the increase of heat-setting time, followed by burning marks on the surface. The electrical conductivity and tensile strength at break first increased and then decreased, and the heat setting time was 3min The electrical conductivity and tensile breaking strength reached the maximum at 3.12S / cm and 4.65cN / dtex, respectively. The tensile elongation at break of the fibers decreased continuously.