Flexible-capron toughened epoxy/graphene nanocomposites for high k dielectric and ultraviolet radiation-resistant applications

Abstract

In the present work, flexible hybrid nanocomposites with high k dielectric and UV resistant behaviour have been developed and studied using capron-toughened epoxy resin with different weight percentages (wt%) of graphene oxide (GO). Among the wt% of GO, 0.7 wt% nanocomposite possesses the highest value of dielectric constant. 1 wt% GO nanocomposite has the highest retention of tensile strength (93.35%) with graphene morphology, even after 168 h UV exposure, proving that its 2D graphene network serves as a passive protective layer against UV radiation. High dielectric behaviour and efficient retention of strength properties suggest that the flexible and light-weight hybrid nanocomposite material developed in the present work can be used as potential capacitors in microelectronics for satellites operating at low earth orbit.