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3D printing of photocurable resin reinforced by functionalised graphene nanoplatelets

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conference contribution
posted on 2024-01-04, 12:24 authored by Mohamad AlsaadiMohamad Alsaadi, Eoin HinchyEoin Hinchy, Conor Mc CarthyConor Mc Carthy, Vicente F. Moritz, Alexandre PortelaAlexandre Portela, Declan M. Devine

The influence of functionalised graphene nanoplatelets with melamine on the thermal and mechanical properties of a 3D-printed photopolymerisable resin is investigated. In this work, a liquid-based 3D printer and stereolithography were employed to fabricate the 3D-printed parts, and a commercial dimethacrylate-based resin was used. The 3D-printed parts were subjected to ultraviolet and thermal post-curing stages to improve thermal and mechanical behaviour. The quality of the graphene nanoplatelets’ functionalisation was characterised by Fourier transform infrared spectroscopy and thermogravimetric analysis. Thermal and mechanical characterisations were performed via thermogravimetric, tensile, and Izod impact tests. The fractured surfaces were observed via scanning electron microscopy. The degree of graphene nanoplatelet dispersion in the polymer matrix is enhanced by bonding with melamine via π–π interactions and inhibited surface defect formation. Results show property enhancements of up to 35% in tensile strength, 78% in impact strength, and 38% in residual weight at 400 ◦C.

Funding

Smart Manufacturing Advanced Research Training for Industry 4.0

European Commission

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Science Foundation Ireland

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History

Publication

Materials Proceedings, 2023, 14 (1) 20

Publisher

MDPI

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