The synthesis of a novel graphene-based inorganic–organic hybrid flame retardant and its application in epoxy resin

In this paper, a novel graphene-based inorganic–organic hybrid flame retardant (GFR) was prepared via sol–gel reaction of FGO and phenyl-bis-(triethoxysilylpropyl) phosphamide (PBTP) and characterized by FT-IR, XPS, XRD, TGA and AFM. The influence of the GFR on the thermal stability and flame retardance of epoxy resin composites were characterized by TGA, LOI as well as micro-cone, which indicated that GFR brought a good effect in enhancing the residual char and flame retardance of epoxy composites. The dynamic mechanical properties and electrical properties of EP composites were also analyzed.