Fast-response piezoresistive pressure sensor based on polyaniline cotton fabric for human motion monitoring

被引:33
作者
Chen, Fangchun [1 ]
Liu, Hongjia [1 ]
Xu, Mengting [1 ]
Ye, Jiapeng [1 ]
Li, Zhi [1 ,2 ]
Qin, Lizhao [3 ]
Zhang, Tonghua [1 ]
机构
[1] Southwest Univ, Coll Sericulture Textile & Biomass Sci, Chongqing Engn Res Ctr Biomaterial Fiber & Modem, 216 Tiansheng Rd, Chongqing 400715, Peoples R China
[2] Soochow Univ, China Natl Text & Apparel Council Key Lab Flex, Suzhou 215123, Peoples R China
[3] Southwest Univ, Coll Mat & Energy Res Team New Ceram Mat & Device, Chongqing 400715, Peoples R China
关键词
Polyaniline; Cotton fabric; Self-assembly; Piezoresistive sensor;
D O I
10.1007/s10570-022-04661-z
中图分类号
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号
0805 ; 080502 ; 0822 ;
摘要
Wearable flexible sensors with quick response time and high stability are required in the fields of human motion detection, personal health monitoring, and artificial electronic skin. However, their design remains a challenge. To address this need, we fabricate a piezoresistive sensor with a wide detection limit, fast response time, and excellent stability in this work. Nickel (Ni) and copper (Cu) films are deposited on cotton fabric (CF) by in-situ polymerization of polyaniline (PANI) using magnetic filtration cathode vacuum arc deposition technology to obtain copper/polyaniline cotton (Cu/PANI/CF) and nickel/polyaniline cotton (Ni/PANI/CF). The pressure sensor is then fabricated by self-assembly. The proposed pressure sensor has a wide detection limit (0-180 kPa), rapid response time (30 ms), high cycle stability (>5000), and can detect the movement of each joint of the human body (such as the knee, finger, elbow, etc.). The sensor can also monitor different facial micro-expressions, including smiles and blinking. Based on the practical application of human motion signals and the detection of subtle stress, the proposed sensor demonstrates significant potential as a wearable electronic product for health monitoring. [GRAPHICS] .
引用
收藏
页码:6983 / 6995
页数:13
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