초록 |
Graphene has been highlighted for the last decade due to its excellent physical and electrical properties. Especially, even micro-sized graphene sheets has high aspect ratio with an atomic thickness, graphene is regarded as promising nanomaterial in barrier applications. Even small molecules cannot penetrate through defect-free and single layer graphene sheet, according to simulations and experimental results. There are two major routes to use graphene and its derivatives for barrier applications; applying graphene or its derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO), on substrates and incorporation of graphene or its derivatives into the polymeric matrix as polymer nanocomposites. In this study, we focused on barrier applications using graphene and GO. As compared to other nanomaterials used in barrier applications, their advantages and current limitations were also discussed together with challenging issues and potential applications for future research. |