3D printing of thermoplastic polyurethane on woven fabric for body-centric applications

Kumar, S, Singh, R, Singh, AP and Wei, Y ORCID: https://orcid.org/0000-0001-6195-8595, 2024. 3D printing of thermoplastic polyurethane on woven fabric for body-centric applications. National Academy Science Letters. ISSN 0250-541X

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Abstract

Some studies have reported using 3D-printed dielectric electroactive polymer (DEAP) on woven fabric (WF) for a suitable electroactive response in the past decade. However, little has been reported on using 3D-printed thermoplastic polyurethane (TPU) on WF as a part of a wearable sensor in body-centric applications (BCA). This study reports the effect of mechanical loading (0–25 N) on the dielectric constant (ɛr) of 3D-printed TPU over WF as a substrate for BCA. For ascertaining the change in ɛr, the substrate was loaded and unloaded (for repeated cycles) along the weft side of the WF for mechanical strain. The 3D printed TPU on WF has shown programmable changes as 4D capabilities in bond characteristics (based on attenuated total reflectance-Fourier transform infrared (ATR-FTIR), surface roughness (Ra), porosity % (based on scanning electron microscopy (SEM), and physical properties (based on X-ray diffractions (XRD) analysis). To ascertain the BCA, the wearability of the developed sensor was ensured based on the specific absorption rate (SAR), which was observed as 1.57 W/kg.

Item Type:	Journal article
Publication Title:	National Academy Science Letters
Creators:	Kumar, S., Singh, R., Singh, A.P. and Wei, Y.
Publisher:	Springer
Date:	18 November 2024
ISSN:	0250-541X
Identifiers:	Number Type 10.1007/s40009-024-01513-1 DOI 2301069 Other
Rights:	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s40009-024-01513-1
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	28 Nov 2024 16:43
Last Modified:	28 Nov 2024 16:43
URI:	https://irep.ntu.ac.uk/id/eprint/52667

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