Wang, Y;
Li, W;
Li, C;
Zhou, B;
Zhou, Y;
Jiang, L;
Wen, S;
(2021)
Fabrication of ultra-high working range strain sensor using carboxyl CNTs coated electrospun TPU assisted with dopamine.
Applied Surface Science
, 566
, Article 150705. 10.1016/j.apsusc.2021.150705.
Preview |
Text
APSUSC-D-21-07483_R1-pages-deleted.pdf - Accepted Version Download (7MB) | Preview |
Abstract
Fiber-based strain sensors have attracted widespread concern of researchers due to large specific surface area, good stretchability and remarkable flexibility. In this work, a stretchable strain sensor with ultra-high working range was developed by using electrospun thermal plastic polyurethane (TPU) nanofibrous membrane coated with carboxyl multi-walled carbon nanotubes (CNTs). In order to obtain an even distribution and an improved fastness of carboxyl CNTs on TPU fibers, dopamine (DA) was employed to modify the TPU nanofibrous membrane (labelled DATPU) via a fast ultrasonication-assisted deposition approach. DATPU/CNTs exhibited an ultra-high working range of about 710% with high gauge factor up to 1200. Furthermore, DATPU/CNTs were found to have stronger washing fastness than TPU/CNTs owing to the introduction of DA onto the surface of TPU nanofibers. DATPU/CNTs also maintained good electrical conductivity during 15,000 cycles of stretching-releasing test. Finally, a prototype of strain sensor based on DATPU/CNTs membrane demonstrated remarkable flexibility and sensitivity to human body motions such as elbow bending, finger bending and swallowing.
| Type: | Article |
|---|---|
| Title: | Fabrication of ultra-high working range strain sensor using carboxyl CNTs coated electrospun TPU assisted with dopamine |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.apsusc.2021.150705 |
| Publisher version: | https://doi.org/10.1016/j.apsusc.2021.150705 |
| 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: | Polyurethane nanofibers, Electrospinning, Dopamine modification, Carbon nanotubes, Strain sensor |
| 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/10133250 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
