▎ 摘　　要

Graphene oxide incorporated epoxy nanocomposites were prepared using synthesised graphene oxide (GO) and amine functionalised graphene oxide (AGO) in various loading (0-0.6) wt% by solution blending method. As synthesised GO and AGO were characterised by Fourier transform infrared spectrum (FTIR), x-ray diffraction (XRD) and Thermogravimetric (TG) analysis. The dielectric permittivity and loss factor of GO/AGO epoxy nanocomposites were found out by impedance analyser in the frequency range of 10(1) to 10(6) Hz. The dielectric endurance of GO/AGO epoxy nanocomposites was investigated by dielectric breakdown strength and electrical resistivity. It was found that for filler loadings up to 0.4 wt% of both GO and AGO, there was a proportionate change in properties due to homogeneous dispersion. The study shows surface functionalised AGO-epoxy nanocomposites have shown better permittivity, loss factor, and breakdown strength than neat epoxy and GO-epoxy composites.