STRUCTURAL AND THERMAL STABILITY OF FUNCTIONALIZED GRAPHENE INCORPORATED POLYURETHANE NANOCOMPOSITE FOAM

Abstract

The thermal stability and morphology of polyurethane nanocomposite foams reinforced with chemically modified Fenton graphene (FG), graphene oxide (GO), or reduced graphene oxide (rGO) were investigated. The polyurethane (PU) polymeric nanocomposite foams having 0.5 to 2.0 wt.% were prepared using a thermo-reversible solution method involving a supramolecular self-assembly process. The effect of edge and surface oxidization morphology of functionalized graphene/PU foams was characterized by scanning electron microscopy and X-ray diffraction methods. The thermal stability of the polyurethane nanocomposite foam was investigated by thermo-gravimetric analysis (TGA). The thermal stability of 0.5 wt.% FG-based nanocomposite foam was more as compared to 0.5 wt.% of GO and rGO-based nanocomposite foam.