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Research Article | Open Access

Tribological interactions of 3D printed polyurethane and polyamide with water-responsive skin model

Ashish K. KASAR1, Ashton CHAN2, Victor SHAMANAEV3, Pradeep L. MENEZES1( )
Department of Mechanical Engineering, University of Nevada, Reno NV 89557, USA
Department of Mechanical Engineering, New York University, New York 11201, USA
Department of Mechanical Engineering, University of Nevada, Las Vegas NV 89154, USA
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Abstract

3D printing in the textile and fashion industry is a new emerging technology. Applications of 3D printing for designing clothes and other wearable accessories require tribological and biological understanding of 3D printing plastics against the complex human skin to mitigate skin-friction related ailments such as calluses and blisters. This study provides tribological insight in search of an optimal 3D printable material that has minimal friction against the skin. Two low friction 3D printable materials, thermoplastic polyurethane (TPU) and polyamide (TPA) were chosen and tribological testing was carried out against a water responsive skin model. The skin model was synthesized using a gelatine based model made with cotton and crosslinked with glutaraldehyde. Tribological testing of TPU/TPA against the skin model in dry and wet conditions were made. The higher coefficient of friction (COF) was observed in the wet condition compared to the dry condition. To overcome the higher friction, TPA/TPU-sodium polyacrylate composites were prepared by heat pressing that significantly reduced COF of TPU and TPA by ~ 40% and 75%, respectively, in wet conditions.

Keywords

coefficient of friction (COF)skin modelthermoplastic polyurethanethermoplastic polyamide

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Friction
Volume 10 Issue 1,
January 2022
Pages 159-166
DOI: 10.1007/s40544-020-0472-2
Cite this article:
KASAR AK, CHAN A, SHAMANAEV V, et al. Tribological interactions of 3D printed polyurethane and polyamide with water-responsive skin model. Friction, 2022, 10(1): 159-166. https://doi.org/10.1007/s40544-020-0472-2

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Received: 04 July 2020
Revised: 16 October 2020
Accepted: 10 November 2020
Published: 27 February 2021
© The author(s) 2020

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