biostudies-literatureUnknown9(54)Henriksen MLRecyclable 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 plRSC advances31378-31385https://www.ebi.ac.uk/biostudies/studies/S-EPMC9072556biostudies-literatureRecyclable carbon fibre composites enabled by cystine containing epoxy matrices.PMC9072556Hinge MFriis JEHenriksen MLVoss AfalseRecyclable carbon fibre composites enabled by cystine containing epoxy matrices.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 pl2019-01-01T00:00:00Z2019 Oct2025-04-04T21:33:25.114Z2025-04-04T21:33:25.114ZS-EPMC90725563552798110.1039/c9ra06409e