导电CaSO_4晶须制备工艺优化及其应用  

Process optimization of electroconductive CaSO_4 whiskers and its application

作　　者：马慧[1,2] 高强[1,2] 童宁军 刘浪[2] 葛明桥[1,2] 

机构地区：[1]生态纺织教育部重点实验室(江南大学),无锡214122 [2]江南大学纺织服装学院,无锡214122

出　　处：《化工新型材料》2015年第7期206-208,共3页New Chemical Materials

基　　金：国家高科技研究发展计划(863)资助项目(2012AA030313);中央高校基本科研业务费专项资金资助项目(JUSRP11444)

摘　　要：采用正交试验法对导电CaSO4晶须的制备工艺进行了优化。通过改变掺杂比(Sb/Sn)、反应温度、反应pH值等3大因素,结合反应产物的测试表征,得到了试验范围内最优的合成条件。实验范围内的最佳制备方案:掺杂比(Sb/Sn)5%,反应温度60℃,pH=1,导电CaSO4晶须的体积电阻率值达到0.199kΩ·cm,白度70。将最佳合成条件下的导电CaSO4晶须掺杂在PAN的DMF溶液中进行湿法纺丝,获得了白色导电PAN纤维。The preparation parameters of electroconductive CaSO4 whisker were optimized though orthogonal experiments.According to different parameters of doping ratio,reaction temperature and pH value,products were characterized respectively to obtain the optimal synthetic condition for the whisker.The results showed that the optimal synthetic condition for whisker with a volume resistivity of 0.199kΩ·cm and a whiteness of 70was：doping ratio（Sb/Sn）of 5%,reaction temperature of 60℃,pH value of 1.Thenthe whisker was added to polyacrylonitrile N,N-dimethyl formamide solution to achieve white conductive PAN fibers via wet-spinning.

关 键 词：导电CaSO4晶须 包覆 体积电阻率 白色导电纤维 

分 类 号：TQ132.32[化学工程—无机化工]