Evaluation temperature and strain sensing properties of electrically conductive elastic fibres
Smart textiles are able to sense electrical, thermal, chemical, magnetic, or other stimuli from the environment and adapt or respond to them by using functionalities integrated into textile structures. The primary aim of this study was to demonstrate that commercial elastic fibres could be converted to act as sensing fibres. This was achieved through the formation of thin polyaniline layers coated on the polyurethane fibres by in situ chemical oxidative polymerization method. The surface and the cross-section morphology of the resulting fibres were observed by SEM, which showed that polyaniline particles were in-homogeneously distributed on surfaces of polyurethane fibres. The conductivity of the resulting fibres increased greatly with increasing of thickness of polyaniline layers, and decreased with increasing temperature and exhibited a linear response from 0 to 60 °С. Strain deformation behaviour of the fibres was detected through applying a certain strain and tracking the conductivity change. The simulations performed on this structure showed a very good linearity over a wide range of applied strain from 5% to 400%. The responses on the temperature and strain sensing properties were attributed to the changes of the grain resistance of the polyaniline particles and grain boundary resistance induced by adequate external stimulus.
FAN Qinqing QIN Zongyi ZHAO Chenyang GONG Jinghua ZHU Meifang LI Longfei DING Yongsheng
State Key Laboratory for Modification of Chemical Fibres and Polymer Materials,Donghua University, S College of Material Science and Engineering, Donghua University, Shanghai 201620, P.R.China State Key Laboratory for Modification of Chemical Fibres and Polymer Materials,Donghua University, S College of Information Sciences and Technology, Donghua University, Shanghai 201620, P.R.China
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
649-652
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）