预处理对聚吡咯/羊毛复合导电纱线性能的影响  

Effect of pretreatment on properties of polypyrrole/wool composite conductive yarns

作　　者：曹如川 石小红 李国龙 王富娟 李文全 张天芸 CAO Ruchuan;SHI Xiaohong;LI Guolong;WANG Fujuan;LI Wenquan;ZHANG Tianyun(School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou,Gansu 730500,China;Lanzhou Sanmao Industrial Co.Ltd.,Lanzhou,Gansu 730316,China)

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730500 [2]兰州三毛实业有限公司,甘肃兰州730316

出　　处：《毛纺科技》2022年第1期28-34,共7页Wool Textile Journal

基　　金：国家自然科学基金项目(51903113);中国博士后科学基金第66批面上项目(2019M663858)。

摘　　要：为了改善聚吡咯/羊毛复合导电纱线的导电性,采用化学原位聚合的方法,以纯羊毛纱线为基材,以吡咯为单体,三氯化铁为氧化剂,十六烷基三甲基溴化铵为掺杂剂,制备了聚吡咯/羊毛复合导电纱线。根据羊毛纤维湿热条件的拉伸特性,采用机械拉伸和机械/化学试剂共同作用的方法,改变羊毛纤维的鳞片结构和表面性质,增加吡咯与羊毛纤维的反应位点。为了进一步提高复合导电纱线的导电性,采用多次负载的方法,增加聚吡咯在羊毛纱线上的负载。实验结果表明:经过预处理后的聚吡咯/羊毛复合导电纱线具有较高的强力和较低的初始模量,其导电性能大大提升,电阻值由未经处理的730Ω/cm下降到34.83Ω/cm。In order to improve the conductivity of polypyrrole/wool composite conductive yarns,the polypyrrole/wool composite conductive yarns were prepared by chemical in-situ polymerization with pure wool yarn as substrate,pyrrole as monomer,ferric chloride as oxidant and cetyltrimethylammonium bromide as dopant.According to the tensile properties of wool fiber,the pretreatment methods such as mechanical drawing,and mechanical/chemical co-pretreatment were used to change the structure of cortex scale cell and surface properties of wool fibers through adding the reactive sites.To further improve the electrical conductivity of composite yarns,the repeated load was aimed to add the loading of polypyrrole on the composite yarns.The experimental results show that the polypyrrole/wool composite conductive yarns have a higher strength,a lower initial modulus,and a better electrical conductivity.The resistance value of pretreated polypyrrole/wool composite conductive yarns decreases from 730Ω/cm to 34.83Ω/cm.

关 键 词：羊毛纱线 羊毛鳞片结构 聚吡咯 复合导电纱线 拉伸性能 

分 类 号：TS131.8[轻工技术与工程—纺织材料与纺织品设计]