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

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

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

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.

Original language	English
Pages (from-to)	3071-3079
Number of pages	9
Journal	ACS Applied Electronic Materials
Volume	4
Issue number	6
Early online date	2 Jun 2022
DOIs	https://doi.org/10.1021/acsaelm.2c00471
Publication status	Published (in print/issue) - 28 Jun 2022

Bibliographical note

Funding Information:
This work is supported by National Natural Science Foundation of China (12102374, 52173301), the Sichuan Science and Technology Program (2021YFH0031, 22JDGD0015 and 2022YFH0019), Special Funded Postdoctoral Program of Sichuan Province (021609912), Innovative Research Team of Southwest Petroleum University (2017CXTD01), and the International Cooperation Project of Chengdu (2019-GH02-00054-HZ).

Publisher Copyright:
© 2022 American Chemical Society.

Keywords

strain sensor
biaxial stretching
carbon nanotubes
thermoplastic polyurethane
nanocomposite

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10.1021/acsaelm.2c00471

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

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.",

keywords = "strain sensor, biaxial stretching, carbon nanotubes, thermoplastic polyurethane, nanocomposite",

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

note = "Funding Information: This work is supported by National Natural Science Foundation of China (12102374, 52173301), the Sichuan Science and Technology Program (2021YFH0031, 22JDGD0015 and 2022YFH0019), Special Funded Postdoctoral Program of Sichuan Province (021609912), Innovative Research Team of Southwest Petroleum University (2017CXTD01), and the International Cooperation Project of Chengdu (2019-GH02-00054-HZ). Publisher Copyright: {\textcopyright} 2022 American Chemical Society.",

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AU - Xiang, Dong

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AU - Zhang, Xuezhong

AU - Harkin-Jones, Eileen

AU - Wu, Yuanpeng

AU - Zhao, Chunxia

AU - Li, Hui

AU - Li, Zhenyu

AU - Wang, Ping

AU - Li, Yuntao

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PY - 2022/6/28

Y1 - 2022/6/28

N2 - 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.

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

Abstract

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Keywords

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