Self-Healing Sensors Based on Dual Noncovalent Network Elastomer for Human Motion Monitoring
文献类型： 外文期刊
作者： Cao, Jie 1 ; Zhang, Xu 1 ; Lu, Canhui 1 ; Luo, Yongyue 2 ; Zhang, Xinxing 1 ;
作者机构： 1.Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Sichuan, Peoples R China
2.CATAS, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China
关键词： hydrogen bonding;metal-ligand coordination;self-healing;sensors;supramolecular structures
期刊名称：MACROMOLECULAR RAPID COMMUNICATIONS （ 影响因子：5.734； 五年影响因子：4.905 ）
ISSN： 1022-1336
年卷期： 2017 年 38 卷 23 期
页码：
收录情况： SCI
摘要： Nowadays, it is still a challenge to prepare flexible sensors with great mechanical strength, stretchability, high sensitivities, and excellent self-healing (SH) abilities. Herein, a nanostructured supramolecular elastomer is reported with a dual noncovalent network of hydrogen bonding interactions and metal-ligand coordination. The resultant flexible sensor presents ultrafast (30 s), autonomous, and repeatable SH ability with high healing efficiency (80% after the 3rd healing process), as well as enhanced mechanical properties. Benefitting from the 3D conductive network, the sensor exhibits high electrical sensitivity and very low detection limit (0.2% strain). As a result, the flexible sensor is capable of precisely monitoring small strains of human motions (such as vocal-cord vibration), and exhibits reproducible and recognizable current signals after cutting-healing process. The dual noncovalent network design proposed here opens up a new opportunity for scalable fabrication of high performance SH sensors and other electronic devices.
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