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Inventions 2018, 3(2), 29;

Development of New Hybrid Acrylic/Epoxy DLP-3D Printable Materials

Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Center for Sustainable Future Technologies, Istituto Italiano di Tecnologia, Corso Trento 21, 10129 Torino, Italy
Author to whom correspondence should be addressed.
Received: 7 May 2018 / Revised: 7 May 2018 / Accepted: 15 May 2018 / Published: 17 May 2018
(This article belongs to the Special Issue Innovations in 3-D Printing)
PDF [2322 KB, uploaded 17 May 2018]


Light induced three dimensional (3D) printing techniques generally use printable formulations that are based on acrylic monomers because of their fast reactivity, which is balanced with their good final properties. However, the possibility to enlarge the palette of 3D printable materials is a challenging target. In this work, hybrid printable formulations that are based on acrylic and epoxy resins are presented and their printability on DLP (Digital Light Processing) machines is demonstrated. Hexanediol diacrylate (HDDA) and an epoxy resin—3,4-Epoxycylohexylmethyl-3′,4′-epoxycyxlohexane carboxylate (CE)—in different ratios are used and the influence of a bridging agent, Glycidyl methacrylate (GMA), is also investigated. The reactivity of the different active species during irradiation is evaluated and the mechanical properties, including the impact toughness, the thermo-mechanical properties, and the volumetric shrinkage, are studied on printed samples. View Full-Text
Keywords: 3D printing; DLP; hybrid materials; epoxy-acrylate; photopolymerization 3D printing; DLP; hybrid materials; epoxy-acrylate; photopolymerization

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Lantean, S.; Roppolo, I.; Sangermano, M.; Pirri, C.F.; Chiappone, A. Development of New Hybrid Acrylic/Epoxy DLP-3D Printable Materials. Inventions 2018, 3, 29.

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