Fracture Toughness of Carbon-Graphene/Epoxy Hybrid Nanocomposites

Plain strain fracture toughness (KIC) of graphene-epoxy (G-Ep) and carbon-graphene-epoxy (C-G-Ep) hybrid nanocomposites have been evaluated using single-edge-notch bending (SENB) specimens. The effects of graphene concentrations on KIC have been examined. G-Ep nanocomposites were prepared using a combination of mechanical mixing, magnetic stirring, sonication and high shear mixing. The hybrid nanocomposites (C-G-Ep) were processed using manual...