Flexible strain sensor enabled by carbon nanotubes-decorated electrospun TPU membrane for human motion monitoring

Yu, Xin, Wu, Zijian, Weng, Ling, Jiang, Dawei, Algadi, Hassan, Qin, Zhuofan, Guo, Zhanhu and Xu, Bin (2023) Flexible strain sensor enabled by carbon nanotubes-decorated electrospun TPU membrane for human motion monitoring. Advanced Materials Interfaces. p. 2202292. ISSN 2196-7350 (In Press)

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Adv Materials Inter - 2023 - Yu - Flexible Strain Sensor Enabled by Carbon Nanotubes‚ÄźDecorated Electrospun TPU Membrane for.pdf - Published Version
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Official URL: https://doi.org/10.1002/admi.202202292

Abstract

High-performance flexible strain sensors are gaining more and more attention with their bespoken detection range, excellent sensing performance and good stability, which are highly desired in the wearable electronics. Herein, a thermoplastic polyurethane elastomer (TPU) fibrous membrane was prepared as a flexible substrate by electrostatic spinning technology, then a coating of polydopamine was formed through fast synthesizing the dopamine on TPU fibrous membrane surface and loaded with CNTs to develop an extremely sensitive flexible strain sensor. The flexible sensor prepared by TPU fibrous membrane coated with polydopamine layer has an outstanding sensibility under the pulling force (GF of 10528.53 with 200 strain), rapid reaction time (188-221 ms), wide sensing range (up to 200), good stability and durability. The theoretical studies reveals that the underlying cause for the high sensitivity and the inherit relationship between the amount of conducting routes and the length between adjacent conducting fillers in the sensor. The demonstration of device shows a promising application to sense the human motion at various locations of body, with accurate and stable electrical signal output generated at corresponding motion.

Item Type: Article
Additional Information: Funding information: X.Y. and Z.W. contributed equally to this work. This work was supported by Open Project Fund of the Key Laboratory of Engineering Dielectrics and Its Application (2018EDAQY05), Heilongjiang Province Postdoctoral Funded Project (LBH-Q21019), University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (UNPYSCT-2018214), Heilongjiang Natural Science Foundation (LH2020E087), and the Engineering and Physical Sciences Research Council (EPSRC, UK) grant-EP/N007921.
Uncontrolled Keywords: Flexible sensor, Electrospun, Dopamine modification, Fitted model
Subjects: F200 Materials Science
H300 Mechanical Engineering
H700 Production and Manufacturing Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 30 Jan 2023 11:51
Last Modified: 15 Mar 2023 16:08
URI: https://nrl.northumbria.ac.uk/id/eprint/51265

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