Highly Robust and Self-Powered Electronic Skin Based on Tough Conductive Self-Healing Elastomer

被引:103
|
作者
Xun, Xiaochen [1 ,2 ]
Zhang, Zheng [1 ,2 ]
Zhao, Xuan [1 ,2 ]
Zhao, Bin [1 ,2 ]
Gao, Fangfang [1 ,2 ]
Kang, Zhuo [1 ,2 ]
Liao, Qingliang [1 ,2 ]
Zhang, Yue [1 ,2 ]
机构
[1] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing Key Lab Adv Energy Mat & Technol, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
electronic skin; self-healing elastomer; high robustness; self-powered mechanosensation; stable service behaviors; TRIBOELECTRIC NANOGENERATORS; POLYMER;
D O I
10.1021/acsnano.0c04158
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Self-powered electronic skin (E-skin) can be endowed with high robustness by employing self-healing materials. However, most self-powered E-skin employs two heterogeneous materials with high modulus mismatch at the n interface and poor fully self-healing ability, which reduces the robustness of the whole device. Here, a conductive polyurethane elastomer (PUE) with excellent mechanical toughness and self-healing ability is prepared. Based on the self-healing insulated/conductive PUE homogeneous structure and triboelectric-electrostatic induction effect, a highly robust and self-powered E-skin (HRSE-skin) is developed. The HRSE-skin possesses stable mechanosensation capability during the 50% stretching deformation due to a low modulus mismatch in the homogeneous structure. In addition, the stretchability and mechanosensation capability of the HRSE-skin can be restored after the fracture owing to the fully self-healing ability of the homogeneous structure. Therefore, the HRSE-skin has high robustness of the whole device including stable service behaviors and excellent restorability. The developed HRSE-skin demonstrates high robustness in the detection of the force and bending angle of the prosthetic joint. This work solves the low robustness of self-powered E-skin by the preparation of conductive self-healing PUE and the construction of the homogeneous structure, which is important for the practical applications of self-powered E-skin in prosthetic limbs and advanced robotics.
引用
收藏
页码:9066 / 9072
页数:7
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