▎ 摘　　要

NOVELTY - Method for preparing and synthesizing graphene and natural silk reinforced epoxy composite materials, comprises: providing a mixed solution at desired temperature and related chemical conditions for a predefined volume of graphene oxide solution, epoxy resin and relevant hardener; producing, by predefined chemical reactions, a homogeneous graphene oxide/epoxy resin; impregnating, with silk fabric, the produced solution to reach to the final product; and synthesizing, the final product of the graphene/silk epoxy composite materials; wherein in first stage, the epoxy is reinforced with graphene oxide, where in second stage, the homogeneous epoxy/graphene oxide mixture is subjected to impregnation process over silk fabric followed by curing and compressing molding, such as vacuum assisted resin transfer molding (VARTM) at 30 psi. USE - The method is used for preparing and synthesizing graphene and natural silk reinforced epoxy composite materials for structural applications. ADVANTAGE - The method provides graphene, natural silk and epoxy resin based composite materials used as matrix material in the composite at low cost and having high strength to low weight ratio, higher amenability with superior dimensional stability in elevated temperatures and chemical environment. The composite material has higher tensile and flexural stiffness and impact strength and fracture toughness. The method develops lightweight and high-performance epoxy composite material for structural applications, and provides reinforcement material which is compatible with and considering epoxy resin to be base matrix materials, and exhibits desired characteristic properties as needed for the wind and aero industry structural components at relatively lower cost.