Flexible Strain Sensors with Enhanced Sensing Performance Prepared from Biaxially Stretched Carbon Nanotube/Thermoplastic Polyurethane Nanocomposites

Xiaoyu Chen; Dong Xiang; Jiayi Li; Xuezhong Zhang; Eileen Harkin-Jones; Yuanpeng Wu; Chunxia Zhao; Hui Li; Zhenyu Li; Ping Wang; Yuntao Li

doi:10.1021/acsaelm.2c00471

journal article·2022-06-28

Flexible Strain Sensors with Enhanced Sensing Performance Prepared from Biaxially Stretched Carbon Nanotube/Thermoplastic Polyurethane Nanocomposites

Xiaoyu Chen, Dong Xiang, Jiayi Li, Xuezhong Zhang, Eileen Harkin-Jones, Yuanpeng Wu, Chunxia Zhao, Hui Li, Zhenyu Li, Ping Wang, Yuntao Li

ACS Applied Electronic Materials· Volume 4· Issue 6

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Source abstract

Abstract

Conductive polymer composites (CPCs) with good flexibility and electrical properties have attracted extensive concern for application in high-performance strain sensors. Here, a strain sensor with high performance was produced using biaxially stretched carbon nanotubes (CNTs)/thermoplastic polyurethane (TPU) nanocomposites. The results show that the biaxial stretching process enhanced the uniform dispersion and planar orientation of the CNTs, which improved the crystallinity of materials and the sensing property of the sensors. The optimal stretching ratios (SRs) of nanocomposites were also investigated. The 2.0 wt % CNT/TPU-1.5 strain sensor with a SR of 1.5 showed high sensitivity with a maximum gauge factor (GF) value of 16908.8, large detectable strain range (0–375%), and good cyclic stability (1000 cycles) and exhibited an application prospect in wearable devices.

Source: openalex_inverted_index · Quality: baseline

Research context

Polymers Nanomaterials Composites

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Muscle activation and electromyography studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China

The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application, Southwest Petroleum University, Chengdu 610500, China

Collaborative Scientific Innovation Platform of Universities in Sichuan for Basalt Fiber, Southwest Petroleum University, Chengdu 610500, China

School of Engineering, University of Ulster, Jordanstown BT37 0QB, UK

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China

Funding

National Natural Science Foundation of China · International Cooperation Project of Chengdu · Sichuan Science and Technology Program

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