▎ 摘　　要

NOVELTY - Preparation of graphene nanocomposite comprises preparing trimethylene hexamethoxymethyl (HMT), 2,3,6,7,10,11-hexahydroxytriphenylene (HHT), 10-bromo-1-decanol, 2,3,6,7,10,11-hexa(10-hydroxydecyloxytriphenylene) (HHDTP), graphite oxide (GO) and graphene adsorbed HHDTP hybrid materials by grinding GO and HHDTP, adding dimethylformamide (DMF), carrying out UV radiation, adding toluene, stirring at 60 degrees C, refluxing for 5 days, centrifuging, washing with tetrahydrofuran (THF), centrifuging, vacuum drying to obtain the product. USE - Method for preparing graphene nanocomposite used for modifying polymers (claimed). ADVANTAGE - The method can greatly improve dispersibility of graphene and improves graphene compatibility of the polymer matrix. DETAILED DESCRIPTION - Preparation of graphene nanocomposite comprises: (A) mixing ferric chloride hexahydrate (FeCl3-6H20) and sulfuric acid (H2SO4) of mass ratio 1:4, adding 5% dimethyl ether phthalate, placing in ice bath to dissolve, stirring for 24 hours at room temperature, filtering, washing with water, ethanol and toluene, and vacuum drying for 24 hours to obtain HMT; (B) mixing HMT, hydrogen bromide (HBr) and glacial acetic acid of mass ratio 1 g:50 ml:50 ml into a three-mouth flask under nitrogen atmosphere at 130 degrees C, stirring, refluxing for 24 hours, cooling to room temperature, placing in ice water bath for 5 hours, filtering, and obtaining solid; adding volume ratio of 1:1-40 of glacial acetic acid and activated carbon under nitrogen atmosphere at 120 degrees C, refluxing for 30 minutes, filtering, placing in ice water bath for 5 hours, filtering, vacuum drying at 70 degrees C, and obtaining HHT; (C) mixing 10-decanediol, HBr and benzene of mass/volume 1 g:30 ml:30 ml in oil-water separator at 100 degrees C for 30 hours, washing with saturated sodium bicarbonate (NaHCO3) solution, washing twice with water, standing, filtering, rotary evaporating to remove benzene, and vacuum distilling at 180 degrees C to obtain 10-bromo-1-decanol; (D) mixing HHT, potassium carbonate (K2CO3), 10-bromo-1-decanol of mass ratio 1:2:3 with refined DMF into three-mouth flask under nitrogen atmosphere at 100 degrees C, refluxing for 48 hours, cooling to room temperature, slowly adding concentrated sulfuric acid, filtering, vacuum drying, adding ethyl acetate, stirring at 90 degrees C, refluxing for 30 minutes, filtering, placing filtrate in ice water bath for 5 hours, filtering, and vacuum drying to obtain HHDTP; (E) mixing potassium persulfate (K2S2O8) and phosphorus pentoxide (P2O5), slowly adding concentrated sulfuric acid to dissolve, adding graphite at 80 degrees C for 10 days, cooling to room temperature, washing with water, filtering, naturally drying, placing in ice bath, slowly adding potassium permanganate (KMnO4), stirring for 2 hours, slowly adding water, stirring for 2 hours at room temperature, adding 30% hydrogen peroxide solution, standing, removing upper layer, washing lower layer with 1:10 aqueous hydrochloric acid, standing, removing upper layer, washing with water, centrifuging, and vacuum drying to obtain GO; and (F) grinding GO and HHDTP, adding DMF, stirring at 800 degrees C for 24 hours, carrying out UV radiation for 2 hours, adding toluene, stirring at 60 degrees C, refluxing for 5 days, centrifuging, washing with tetrahydrofuran (THF), centrifuging, and vacuum drying to obtain the product.