Flexible Strain Sensor Based on Nickel Microparticles/Carbon Black Microspheres/Polydimethylsiloxane Conductive Composites for Human Motion Detection

Herein, we report a dual-functional flexible sensor (DFFS) using a magnetic conductive polymer composed of nickel (Ni), carbon black (CB), and polydimethylsiloxane (PDMS). The material selection for the DFFS utilizes the excellent elasticity of the PDMS matrix and the synergistic interaction between...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2024-06, Vol.16 (25), p.32702-32712
Main Authors: Hong, Weiqiang, Guo, Xiaohui, Zhang, Tianxu, Mu, Shaowen, Wu, Fei, Yan, Zihao, Zhang, Huishan, Li, Xianghui, Zhang, Anqi, Wang, Jiahao, Cao, Yuxin, Li, Jiming, Dong, Hongyu, Liu, Tianqi, Liu, Zhiming, Zhao, Yunong
Format: Article
Language:English
Subjects:
Applications of Polymer, Composite, and Coating Materials
detection limit
humans
magnetism
microparticles
polydimethylsiloxane
soot
synergism
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Summary:Herein, we report a dual-functional flexible sensor (DFFS) using a magnetic conductive polymer composed of nickel (Ni), carbon black (CB), and polydimethylsiloxane (PDMS). The material selection for the DFFS utilizes the excellent elasticity of the PDMS matrix and the synergistic interaction between Ni and CB. The DFFS has a wide strain range of 0–170%, a high sensitivity of 74.13 (140–170%), and a low detection limit of 0.3% strain. The DFFS based on superior performance can accurately detect microstrain/microvibration, oncoming/contacting objects, and bicycle riding speed. Additionally, the DFFS can be used for comprehensive monitoring of human movements. Therefore, the DFFS of this work shows significant value for implementation in intelligent wearable devices and noncontact intelligent control.
ISSN:1944-8244
1944-8252
1944-8252
DOI:10.1021/acsami.4c04830