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Issue 54, 2019
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Recyclable carbon fibre composites enabled by cystine containing epoxy matrices

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Abstract

Recyclable composites are of industrial relevance and benefits the environment, which initiates research towards more sustainable solutions. In this study, a commercial epoxy thermoset, modified by a bio-based additive is used as an infusion resin making recyclable carbon fibre composites. The matrix fractionation process was investigated and optimized with respect to additive & solvent concentration, and temperature. Fully cured carbon reinforced composites were dismantled under the optimum condition and after drying, reinfused, and cured into a new composite, repeated three times on the same carbon fibre material. A decrease in fibre volume fraction and composite performance was found as a number of recyclings were performed. Finally, it was demonstrated that the recycled carbon fibre ply could be reshaped, infused, and cured and thus be applied in new components.

Graphical abstract: Recyclable carbon fibre composites enabled by cystine containing epoxy matrices

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Supplementary files

Article information


Submitted
16 Aug 2019
Accepted
27 Sep 2019
First published
02 Oct 2019

This article is Open Access

RSC Adv., 2019,9, 31378-31385
Article type
Paper

Recyclable carbon fibre composites enabled by cystine containing epoxy matrices

M. L. Henriksen, J. E. Friis, A. Voss and M. Hinge, RSC Adv., 2019, 9, 31378
DOI: 10.1039/C9RA06409E

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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