Effect of graphene oxide surface treatment on the interfacial adhesion and the tensile performance of flax epoxy composites

Abstract The high stiffness and damping properties of flax fibres promote the integration biocomposites in structural applications. However, strength flax/epoxy composites is still limited compared to glass/epoxy composites. Graphene oxide (GO) has proved be a promising building block for nanocomposites due its toughness, tunable interfacial interactions with polymers. This study aims understand potential GO-based surface treatment modify adhesion tensile performance fibre/epoxy GO-modification improves shear elementary by 43%. improvement also established 40% higher transverse bending untreated moduli GO-modified are on average 2 GPa than all strain ranges. quasi-static longitudinal unidirectional not affected GO-modification.