原位聚合法制备聚酰胺/聚苯胺复合导电纤维

研究了原位聚合法制备聚酰胺/聚苯胺导电纤维,并对制备的复合纤维进行红外及光学显微镜测试,结果表明聚苯胺与纤维成功复合。对制备的复合纤维进行电导率测试,采用控制单一变量法探讨了苯胺单体在不同的条件下聚合对纤维电导率的影响,并讨论了反应温度对聚合过程和电导率的影响,得出最佳的工艺条件为:纤维经30%的甲酸溶液预处理20min,苯胺单体浓度为0.8M,氧化剂过硫酸铵浓度为1M,掺杂酸为盐酸,浓度为0.8M,冰水浴条件,反应时间为4h,得到的聚酰胺/聚苯胺导电纤维的电导率为3.7S/m。

Preparation of Polyamide/Polyaniline Conductive Fiber by in-situ Polymerization

Polyamide/polyaniline conductive fiber was prepared by in-situ polymerization,FTIR and microscope characterization showed that PANI had been coated on the surface of the fiber,and the conductivity of the composite fiber was tested,the single variable method was used to study the influence factors that aniline polymerized with different conditions for the conductivity of the fiber,and the effect of reaction temperature on the reaction process and the conductivity was discussed,the optimum conditions as follows:polyamide fiber was pre-treated by soaking in 30％ HCOOH for 20min,aniline is 0.8M,ammonium persulfate is 1M,doping agent is HC1 (0.8M),polymerized in ice-water bath for 4h.Finally,the conductivity of polyamide/polyaniline conductive fiber obtained can reach to 3.7S/m.