▎ 摘　　要

NOVELTY - Nanocomposite comprises 0.1-10 pts. wt. graphene oxide, 0.1 to 10 pts. wt. ethylenic-containing silane coupling agent, 0.05-3 pts. wt. emulsifier, 100 pts. wt. poly(phenylene oxide), 5-50 pts. wt. styrene, 0.05 to 3 pts. wt. initiator, 0.01-100 pts. wt. reducing agent and 0.05-2 pts. wt. antioxidant. The antioxidant is pentaerythritol tetrakis ( beta - (3,5-di-t-butyl-4-hydroxyphenyl) propionate) (Irganox (RTM: not defined) 1010), N, N'- (4-hydroxy-3,5-di-tert-butylphenyl) propionate (i.e., Irganox 1098), beta -(4-hydroxy-3,5-di-tert-butylphenyl) propionate, i.e. (Irganox 1076). USE - Nanocomposite. DETAILED DESCRIPTION - Nanocomposite comprises 0.1-10 pts. wt. graphene oxide, 0.1 to 10 pts. wt. ethylenic-containing silane coupling agent, 0.05-3 pts. wt. emulsifier, 100 pts. wt. poly(phenylene oxide), 5-50 pts. wt. styrene, 0.05 to 3 pts. wt. initiator, 0.01-100 pts. wt. reducing agent and 0.05-2 pts. wt. antioxidant. The antioxidant is pentaerythritol tetrakis ( beta - (3,5-di-t-butyl-4-hydroxyphenyl) propionate) (Irganox (RTM: not defined) 1010), N, N'- (4-hydroxy-3,5-di-tert-butylphenyl) propionate (i.e., Irganox 1098), beta -(4-hydroxy-3,5-di-tert-butylphenyl) propionate, i.e. (Irganox 1076). The antioxidant is 2,6-di-tert-butyl-4-methylphenol i.e. BHT (264). The emulsifier is sodium dodecyl sulfate, sodium dodecyl sulfonate and sodium dodecyl benzene sulfonate. The initiator is ceric ammonium nitrate, ammonium persulfate, potassium persulfate and sodium bisulfite. The reducing agent is hydrazine hydrate, sodium borohydride, vitamin C, sodium citrate, n-butylamine, isopropanol, benzyl alcohol, hydroquinone. The ethylenic bond-containing silane coupling agent is vinyltriethoxysilane, vinyl-tris ( beta - methoxyethoxy) silane, and gamma -methacrylic acid propyltrimethoxysilane. An INDEPENDENT CLAIM is included for a method for preparing nanocomposite, which involves: (A) preparing polystyrene / graphene nanocomposite powder by dispersing 0.1 to 10 pts. wt. oxidized graphene in 100 to 1000 pts. wt. deionized water; (B) adding 0.1-10 pts. wt. ethylenic silane coupling agent and stirring at room temperature; (C) adopting ultrasonic dispersion for 10-200min, ultrasonic power 100-5000 W, frequency 10000-100000 HZ at 40-100 degrees C; (D) adding 0.05 to 3 pts. wt. emulsifier at 40 to 90 degrees C; (E) stirring and dissolving, then adding 5-50 pts. wt. styrene, deaerating with nitrogen for 30 minutes, fully emulsifying; (F) adding 0.05 to 3 pts. wt. initiator and stirring for 4 to 8 hours; (G) filtering product, washing with distilled water, dying at 90 degrees C for 8 hours to constant weight, crushing to obtain polystyrene / graphene nanocomposite powder; (H) mixing PPO / graphene nanocomposite with 100 pts. wt. PPO with 0.05-2 pts. wt. antioxidant, 5-50 pts. wt. polystyrene / graphene nanocomposite powder and mixing them with high-speed mixer; and (I) extruding and granulating at screw speed of 50-200 rpm, and the temperature of the barrel is 270-340 degrees C and obtaining PPO / graphene nanocomposite.