Preparation and Properties of Strain Sensor Based on Cellulose Carbon Material
LIU Liang1, LI Siyu1, ZHAO Chunxia1,*, XIANG Dong1, LI Yuntao1,2,*, LI Hui1
1 School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China 2 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
Abstract: As an important part of future wearable sensing devices and human-computer interaction systems, flexible strain sensors have become an important concern in this field for their cost control, simple fabrication process and wearable comfort. In this work, biomass α-cellulose (CA) was used as raw material and converted into a material with good conductivity (CAC) by a simple carbonization process. The flexible strain sensor was packaged with polydimethylsiloxane (PDMS), the strain sensing behavior, repeatability and wearable comfort of the sensor were discussed and analyzed, and the sensor was applied to human motion monitoring. The test results showed that the sensor had a strain sensing range of 0.05%—20%, and the highest sensitivity can reach 3.38. It still had a stable signal output after 1 000 cycles, and can monitor human limb movements and small physiological movements. In addition, the good air permeability shown by the sensor was of great significance for improving the comfort of wearable devices.
刘亮, 李思雨, 赵春霞, 向东, 李云涛, 李辉. 纤维素基碳材料应变传感器的制备及性能[J]. 材料导报, 2024, 38(13): 22110159-6.
LIU Liang, LI Siyu, ZHAO Chunxia, XIANG Dong, LI Yuntao, LI Hui. Preparation and Properties of Strain Sensor Based on Cellulose Carbon Material. Materials Reports, 2024, 38(13): 22110159-6.
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