文献类型：期刊文献

英文题名：Stretchable Polyaniline@Epoxidized Natural Rubber Composites with Strong 3D Conductive Networks for High Performance Strain Sensors

作者：Gao, Yifei[1,2];Sun, Jinyu[1,2];Tian, Xiaohui[1,2];Yuan, Yizhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Key Lab Adv Polymer Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2023

卷号：224

期号：6

外文期刊名：MACROMOLECULAR CHEMISTRY AND PHYSICS

收录：;EI(收录号：20230713592623);WOS:【SCI-EXPANDED(收录号:WOS:000932204500001)】；

基金：Acknowledgements This work was financially supported by the Fundamental Research Funds for the Central Universities of China (Grant No. 22A201514002).

语种：英文

外文关键词：conductive polymer composites; polyaniline; strain sensors

摘要：Flexible strain sensors are one of the core devices in wearable electronics. At present, it is still difficult to develop flexible strain sensors with high stretchability, sensitivity, and long-term stability. In this study, polyaniline (PANI) is successfully coated onto the surface of epoxidized natural rubber (ENR) nanospheres to form the PANI@ENR composites with core-shell structure by in situ polymerization. At PANI content of 5 wt% (PANI/ENR), the optimally conductive networks of PANI endow the composites with excellent comprehensive properties. The strain-sensing tests show that the PANI@ENR composites possess two successive linear sensing ranges (gauge factor of 7.3 in 0-400% strain, gauge factor of 1.8 in 400-1000% strain) and excellent cycling stability (over 2500 cycles at 0-50% strain). In addition, PANI@ENR-based strain sensors can monitor the movements of human finger joints, elbow joints, and knee joints in real time, indicating a wide range of potential applications in wearable flexible electronics.