3D inkjet-printed UV-curable inks for multi-functional electromagnetic applications

Saleh, Ehab and Woolliams, Peter and Clarke, Bob and Gregory, Andrew and Greedy, Steve and Smartt, Chris and Wildman, Ricky D. and Ashcroft, Ian and Hague, Richard J.M. and Dickens, Phill and Tuck, Christopher (2017) 3D inkjet-printed UV-curable inks for multi-functional electromagnetic applications. Additive Manufacturing, 13 . pp. 143-148. ISSN 2214-8604

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Inkjet printing of multiple materials is usually processed in multiple steps due to various jetting and curing/sintering conditions. In this paper we report on the development of all inkjet-printed UV-curable electromagnetic responsive inks in a single process, and the electromagnetic characterization of the developed structure. The ink consists of iron oxide (Fe3O4) nanoparticles (nominal particle size 50–100 nm) suspended within a UV curable matrix resin. The viscosity and surface tension of the inks were tuned to sit within the inkjet printability range.

Multiple layers of the electromagnetic active ink were printed alongside passive UV-curable ink in a single manufacturing process to form a multi-material waffle shape. The real permittivity of the cured passive ink, active ink and waffle structure at a frequency of 8–12 GHz were 2.25, 2.73 and 2.65 F/m, respectively. This shows the potential of additive manufacturing (AM) to form multi-material structures with tunable electromagnetic properties.

Item Type: Article
Keywords: 3D inkjet printing; UV curable ink; Iron oxide ink; Electromagnetic; Additive manufacturing
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: https://doi.org/10.1016/j.addma.2016.10.002
Depositing User: Eprints, Support
Date Deposited: 11 Jan 2017 14:00
Last Modified: 02 Jul 2018 09:10
URI: http://eprints.nottingham.ac.uk/id/eprint/39770

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