Thermo-mechanical Characterization of Graphene Based Hybrid Nanocomposites

摘要

The goal of this paper is to investigate the effect of graphene nanosheets addition to laminated composites (carbon fibers/epoxy). A set of graphene based nanocomposites, up to 3 wt%, are synthesized using a high shear mixer and sonication. The results from XRD and SEM have showed that nano-structures formed are mostly into the exfoliated condition. The Hybrid laminates were evaluated using three point bending tests. The results have shown that graphene based hybrid nanocomposites lead to peak stresses around 139% higher than control samples. A decrease on glass transition temperature with the addition of graphene was observed. Furthermore, the thermal stability was compromised, as the temperature on 5% weight loss dropped around 30%.