Issue 54, 2019

Recyclable carbon fibre composites enabled by cystine containing epoxy matrices

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

Supplementary files

Article information

Article type
Paper
Submitted
16 Aug 2019
Accepted
27 Sep 2019
First published
02 Oct 2019
This article is Open Access
Creative Commons BY license

RSC Adv., 2019,9, 31378-31385

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. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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