▎ 摘　　要

NOVELTY - Making nanocomposite involves adding sulfuric acid solution to natural graphite to oxidize natural graphite to create solution 1; adding potassium permanganate to solution 1 to make solution 2 and maintaining temperature of solution 2 below 20 degrees C; stirring solution 2; washing solution 2 with hydrogen peroxide and water; filtering solution 2 to isolate graphene oxide; drying graphene oxide; and mixing the powder of graphene oxide in specific ratio with styrene and methyl methacrylate mixture, and stirring and sonicating for an hour to make a suspension. USE - For making nanocomposite, where the nanocomposite is poly(styrene-co-methyl methacrylate) and graphene nanocomposite (claimed) which is used medical devices such as bone cement, dentures, paper, paint and automotive industries. ADVANTAGE - The obtained nanocomposite has a superior nanomechanical properties, and a better morphology and dispersion with enhanced thermal stability compared with the nanocomposite prepared without Microwave irradiation (MWI); achieves an average increase of 136% in hardness and 76% in elastic modulus through the addition of only 2 wt.% of RGO nanocomposite obtained via the MWI method. DETAILED DESCRIPTION - Making a nanocomposite, involves adding sulfuric acid solution to a natural graphite to oxidize the natural graphite to create a solution 1; adding potassium permanganate to the solution 1 to make solution 2 and maintaining the temperature of solution 2 below 20 degrees C; stirring the solution 2 for 1 hour at 35 degrees C; washing the solution 2 with a hydrogen peroxide and water; filtering the solution 2 to isolate a graphene oxide; drying the graphene oxide at 80 degrees C to obtain a dry powder of graphene oxide; and mixing the powder of graphene oxide in a specific ratio with a styrene and methyl methacrylate mixture, and stirring and sonicating for an hour to make a suspension, where the weight ratio between styrene and methyl methacrylate is 1:1.