In recent decades, the remarkable specific strength and stiffness of carbon fibre reinforced polymer (CFRP) composites has drawn much attention, and made it widely applied in diverse fields, such as aerospace, automotive, and civil engineering. Despite its excellent mechanical behaviour, interfacial property is a key parameter which limits its performance. One approach to address this is with development of new composite fabrication methods, e.g., 3D weaving, stitching or z-pinning to prevent the delamination and improve impact resistance, while facing challenges such as penetration, defects and porosity, etc. . On the other hand, some other methods without introducing the z direction fibres have been proposed to improve the interfacial properties, such as addition of nanomaterials (e.g., graphene related materials , carbon nanotubes (CNTs) , cellulose , MXene , etc.) and the chemical modification of carbon fibres (CFs) .