Author:
Zhao Gang,Qian Feng,Li Xinyi,Tang Yuhan,Sheng Ye,Li Handong,Rao Jiuping,Singh Man Vir,Algadi Hassan,Niu Min,Zhang Weijie,Guo Zhanhu,Peng Xiangfang,Chen Tingjie
Abstract
AbstractFlexible pressure sensors as wearable electronic devices to monitor human health have attracted significant attention. Herein, a simple and effective carbonization-free method is proposed to prepare a compressible and conductive reduced graphene oxide (rGO)–modified plant fiber sponge (defined as rGO-PFS). The introduced GO can not only coat on the surface of plant fibers, but also form a large amount of aerogel with microcellular structure in the macroporous PFS. After reduction treatment, the rGO-PFS can form a double-continuous conductive network of rGO aerogel. With the improvement of polydimethylsiloxane (PDMS), the rGO-PFS@PDMS composite exhibits outstanding compressibility (up to 60% compression strain), excellent durability (10,000 stable compression cycles at 50% strain), high sensitivity (234.07 kPa−1 in a pressure range of 20 ~ 387.2 Pa), low detection limit (20 Pa), and rapid response time (28 ms) for practical wearable applications.
Graphical Abstract
A compressible and conductive reduced graphene oxide–modified plant fiber sponge is prepared by a simple and effective carbonization-free method. With the improvement of polydimethylsiloxane, the sponge exhibits outstanding compressibility, durability, high sensitivity, low detection limit, and rapid response time for practical wearable applications.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Fujian Province
Publisher
Springer Science and Business Media LLC
Subject
Materials Chemistry,Polymers and Plastics,Materials Science (miscellaneous),Ceramics and Composites
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