Liu, M;
Sheng, Y;
Huang, C;
Zhou, Y;
Jiang, L;
Tian, M;
Chen, S;
... Yu, J; + view all
(2023)
Highly stretchable and sensitive SBS/Gr/CNTs fibers with hierarchical structure for strain sensors.
Composites Part A: Applied Science and Manufacturing
, 164
, Article 107296. 10.1016/j.compositesa.2022.107296.
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Manuscript 20221025-Highly stretchable and sensitive SBSGrCNTs fibers.pdf - Accepted Version Download (1MB) | Preview |
Abstract
Most of the reported flexible strain sensors can only normally sense external stretch in a quite narrow working range and with low sensitivity. In order to overcome these drawbacks, elastomeric fiber based strain sensors incorporating graphene (Gr) and carbon nanotubes (CNTs) were initially fabricated via coaxial wet spinning. The solution etching method was employed for forming a 1D@2D@1D hierarchical structure, with pores and microcracks on fibers, to reconstruct their conductive networks. The solution etched fiber based strain sensors achieved a significant improvement in obtaining a high maximum gauge factor of 1667 and capability of working over a wide strain range (0–500%, approximately 31 times larger than that for the non-etched fiber). Furthermore, the strain sensor showed excellent durability over 10,000 tensile strain cycles. Finally, the based strain sensor was used to monitor physiological movements such as finger, elbow and knee bending with fast and accurate responses.
| Type: | Article |
|---|---|
| Title: | Highly stretchable and sensitive SBS/Gr/CNTs fibers with hierarchical structure for strain sensors |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.compositesa.2022.107296 |
| Publisher version: | https://doi.org/10.1016/j.compositesa.2022.107296 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Strain sensor; Carbon nanotubes; Graphene; Wet-spinning; Fibers. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10161529 |
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