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A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting

Aboulkhair, Nesma; He, Yinfeng; Zhang, Fan; Saleh, Ehab; Vaithilingam, Jayasheelan; Aboulkhair, Nesma T.; Begines, Belen; Tuck, Chris J.; Hague, Richard J.M.; Ashcroft, Ian A.; Wildman, Ricky D.

Authors

Yinfeng He

Ehab Saleh

Jayasheelan Vaithilingam

Belen Begines

Chris J. Tuck

Richard J.M. Hague

Ian A. Ashcroft

Ricky D. Wildman Ricky.Wildman@nottingham.ac.uk



Abstract

© 2017 Support structures and materials are indispensable components in many Additive Manufacturing (AM) systems in order to fabricate complex 3D structures. For inkjet-based AM techniques (known as Material Jetting), there is a paucity of studies on specific inks for fabricating such support structures. This limits the potential of fabricating complex 3D objects containing overhanging structures. In this paper, we investigate the use of Tripropylene Glycol Diacrylated (TPGDA) to prepare a thermally stable ink with reliable printability to produce removable support structures in an experimental Material Jetting system. The addition of TGME to the TPGDA was found to considerably reduce the modulus of the photocured structure from 575MPa down to 27MPa by forming micro-pores in the cured structure. The cured support structure was shown to be easily removed following the fabrication process. During TG-IR tests the T 5% temperature of the support structure was above 150°C whilst the majority of decomposition happened around 400°C. Specimens containing overhanging structures (gate-like structure, propeller structure) were successfully manufactured to highlight the viability of the ink as a support material.

Journal Article Type Article
Publication Date 2017-08
Journal Additive Manufacturing
Print ISSN 2214-7810
Electronic ISSN 2214-8604
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 16
Pages 153-161
APA6 Citation Aboulkhair, N., He, Y., Zhang, F., Saleh, E., Vaithilingam, J., Aboulkhair, N. T., …Wildman, R. D. (2017). A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting. Additive Manufacturing, 16, 153-161. https://doi.org/10.1016/j.addma.2017.06.001
DOI https://doi.org/10.1016/j.addma.2017.06.001
Keywords Additive manufacturing; Inkjet printing; Material jetting; Support material; UV curing; TPGDA
Publisher URL https://doi.org/10.1016/j.addma.2017.06.001
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Additional Information This article is maintained by: Elsevier; Article Title: A Tripropylene Glycol Diacrylate-based Polymeric Support Ink for Material Jetting; Journal Title: Additive Manufacturing; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.addma.2017.06.001; Content Type: article; Copyright: Crown Copyright © 2017 Published by Elsevier B.V.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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