▎ 摘　　要

NOVELTY - Graphene composite is prepared by weighing 100-500 mg graphene oxide (GO), adding 100-500 ml deionized water, stirring for 1-10 hours, crushing in crushing machine at 25-75% power for 10-30 minutes to obtain solution A, weighing 1-10 g gamma -methacryloxypropytrimethoxysilane (KH570) silane coupling agent, adding 100-500 ml deionized water of 2-6 pH at room temperature for 1-10 hours to obtain solution B, reacting solutions A and B at 25-100 degrees C for 12-24 hours, separating precipitate, washing with ethanol for 2-3 times, and drying in vacuum at 25-75 degrees C for 12-24 hours. USE - Preparation of graphene composite for conductive polymer filling materials. ADVANTAGE - The composite has excellent compatibilizing effect, low percolation threshold, and improved thermal stability. DETAILED DESCRIPTION - Preparation of graphene composite which involves weighing 100-500 mg graphene oxide (GO), adding 100-500 ml deionized water, ultrasonic stirring for 1-10 hours, crushing in crushing machine at 25-75% power for 10-30 minutes to obtain solution A, weighing 1-10 g gamma -methacryloxypropytrimethoxysilane (KH570) silane coupling agent, adding 100-500 ml deionized water of 2-6 pH at room temperature for 1-10 hours to obtain solution B, reacting solutions A and B at 25-100 degrees C for 12-24 hours, separating precipitate, washing with ethanol for 2-3 times, drying in vacuum at 25-75 degrees C for 12-24 hours to obtain modified GO-KH570 coupling agent material, weighing 100-500 mg modified GO-KH570 material, 10-50 g styrene (St), and 10-50 g methyl methacrylate (MMA), ultrasonic stirring for 1-10 hours, adding 100-500 mg n-hexadecane, 100-500 mg azo-bis-iso-butyrynitrile, cooling while stirring for 1-2 hours to obtain oil phase solution C, preparing 0.1-1 wt % sodium dodecyl benzene sulfonate, and 0.1-1 wt.% alkyl phenol ethoxylates, mixing, adding deionized water, stirring at 25-75 degrees C, standing for 1-10 hours to obtain water phase solution D, adding solution C with 100-500 ml solution D, emulsifying at 25-75 degrees C for 1-10 hours, crushing at 25-75% power for 10-30 minutes to obtain mixed solution, heating under nitrogen protection at 25-75 degrees C for 1-10 hours, raising temperature to 75-100 degrees C, reacting for 1-10 hours, heating continuously to boil, adding excess ethanol, emulsifying, separating, collecting precipitate, washing with hot water, purifying with organic solvent for 2-3 times, drying at 25-75 degrees C for 12-24 hours to obtain polymer-modified Gr-P-(St-MMA), weighing 10-100 mg dried Gr-P-(St-MMA) polymer, adding in 10-100 ml organic solvent, ultrasonic stirring for 1-10 hours to obtain solution E, weighing 1-10 g PS polymer matrix, 1-10 g polymethyl methacrylate (PMMA) polymer matrix, 10-100 mg phenol/phosphite antioxidant, dissolving in 10-100 ml organic solvent at 75-100 degrees C to obtain solution F, mixing solutions E and F, ultrasonic stirring for 1-10 hours, adding 100-500 mu l hydrazine hydrate, reacting at 75-100 degrees C for 12-24 hours, adding deionized water after reaction is complete, precipitating, filtering, washing precipitate with deionized water for 2-3 times, drying at 75-100 degrees C for 1-10 days to obtain Gr-P-(St- MMA)/PS/PMMA mixture, and pressing Gr-P-(St-MMA)/PS/PMMA mixture at 100 MPa and 100-200 degrees C for 10-30 minutes to obtain 0.05-5 wt.% filler containing ternary graphite alkenyl conductive macromolecule composite. DESCRIPTION OF DRAWING(S) - The drawing shows a capillary pressure curve (CPC) of the modified Gr-P-(St-MMA) filler and unmodified Gr filler. (Drawing includes non-English language text).