Facile and Eco-Friendly Preparation of GO/BIIR Composite for Gas Barrier Applications

Abstract

Owing to weak interfacial bonding and incompatibility between graphene and polymer, there are several challenges in the fabrication of graphene-based polymer composites with an effective gas barrier. Hence, it is necessary to enhance the affinity between polymers and graphene. We selected graphene oxide (GO) as filler and brominated butyl rubber (BIIR) as a substrate to prepare GO/BIIR composites via the simple latex mixed route. The tortuous path of diffusion of helium molecules is extended after insertion of GO nanosheets, thus improving the gas barrier of composites. GO/BIIR composite with the GO content of 0.3[Formula: see text]wt.% exhibits favorable barrier efficiency to helium with a helium gas transmission rate of 12.79[Formula: see text]cm3 cm m[Formula: see text] day[Formula: see text] bar[Formula: see text].