Direct 3D printing of a two-part silicone resin to fabricate highly stretchable structures

Gharaie, S, Zolfagharian, A, Moghadam, AAA, Shukur, N, Bodaghi, M ORCID: https://orcid.org/0000-0002-0707-944X, Mosadegh, B and Kouzani, A, 2023. Direct 3D printing of a two-part silicone resin to fabricate highly stretchable structures. Progress in Additive Manufacturing. ISSN 2363-9512

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Abstract

The direct ink writing (DIW) method of 3D-printing liquid resins has shown promising results in various applications such as flexible electronics, medical devices, and soft robots. A cost-effective extrusion system for a two-part high-viscous resin is developed in this article to fabricate soft and immensely stretchable structures. A static mixer capable of evenly mixing two viscous resins in an extremely low flow regime is designed based on the required mixing performance through a series of biphasic computational fluid dynamics analyses. The printing parameters of the extrusion system are determined empirically, and the mechanical properties of the printed samples are compared to their molded counterparts. Furthermore, some potential applications of the system in soft robotics and medical training are demonstrated. This research provides a clear guide for utilizing DIW to 3D print highly stretchable structures.

Item Type:	Journal article
Publication Title:	Progress in Additive Manufacturing
Creators:	Gharaie, S., Zolfagharian, A., Moghadam, A.A.A., Shukur, N., Bodaghi, M., Mosadegh, B. and Kouzani, A.
Publisher:	Springer Science and Business Media LLC
Date:	16 March 2023
ISSN:	2363-9512
Identifiers:	Number Type 10.1007/s40964-023-00421-y DOI 1751359 Other
Rights:	© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Divisions:	Schools > School of Science and Technology
Record created by:	Laura Ward
Date Added:	18 Apr 2023 08:40
Last Modified:	18 Apr 2023 08:40
URI:	https://irep.ntu.ac.uk/id/eprint/48761

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