Enhancement in Mechanical, Thermal, and Dielectric Properties of Functionalized Graphene Oxide Reinforced Epoxy Composites

Abstract The present work has the objective of fabricating graphene oxide ( GO ) and amine‐functionalized graphene oxide (F‐ GO ) reinforced epoxy composites using the casting method. Epoxy resin was dispersed separately with GO (0.5 wt%) and F‐ GO (0.5 and 1 wt%), and then the epoxy resin mixture cured with triethylenetetraamine at room temperature. The synthesized GO and F‐ GO were characterized by FT ‐ IR and Raman spectroscopy. The interfacial interaction of Si in the composite was studied by XPS . The formation of GO and F‐ GO was confirmed by XRD . The tensile and flexural strength composites were measured using the UTM . The thermal behavior and dynamic mechanical behavior were examined by TGA and DMA . The surface morphology and dielectrical properties were analyzed by SEM , TEM , and impedance analyses. The results obtained from epoxy/F‐ GO (0.5 wt%) composite revealed higher mechanical and thermal properties than neat epoxy and epoxy/ GO composites.