▎ 摘　　要

NOVELTY - Manufacturing ultra-light high-strength graphene cable comprises e.g.(i) dissolving raw material graphene oxide and octyltriethoxysilane in an organic solvent and carrying out condensation reaction; (ii) dispersing octyltriethoxysilane-modified graphene oxide ultrasonically in an oleic acid solvent, and reacting; (iii) filtering the graphene and washing using a distilled water; (iv) adding graphene into anhydrous ethanol, and performing ultrasonic dispersion; (v) taking titanium powder, carrying out ultrasonic dispersion, adding dispersing agent and performing ultrasonic dispersion again; (vi) filtering the mixed slurry; (vii) introducing the obtained mixed powder into a ball mill tank and adding a grinding ball for grinding; (viii) filtering mixed powder; (ix) drying powder; (x) introducing the dried powder into a graphite mold for hot pressing and sintering; and (xi) cooling furnace to room temperature. USE - The method is useful for manufacturing ultra-light high-strength graphene cable. ADVANTAGE - The method produces cable with excellent electrical conductivity and solves problem of heavier current cable line, difficulty in construction, and insufficient strength. DETAILED DESCRIPTION - Manufacturing ultra-light high-strength graphene cable comprises (i) dissolving raw material graphene oxide and octyltriethoxysilane in an organic solvent and carrying out condensation reaction to obtain precursor-octyltriethoxysilane-modified graphene oxide in the presence of a catalyst, where reaction temperature is 40-60 degrees C, concentration of graphene oxide is 2-5 mg/ml, where mass ratio of octyl triethoxysilane and graphene oxide is 4-3:1-1; (ii) dispersing octyltriethoxysilane-modified graphene oxide ultrasonically in an oleic acid solvent, and reacting at 150-180 degrees C for 12-10 hours; (iii) filtering the graphene and washing using a distilled water; (iv) adding graphene into anhydrous ethanol, and performing ultrasonic dispersion using dispersing agent; (v) taking titanium powder, adding titanium powder into the solution of graphene, carrying out ultrasonic dispersion, adding dispersing agent and performing ultrasonic dispersion again; (vi) filtering the mixed slurry to remove the dispersing agent to obtain a mixed powder of graphene and titanium powder; (vii) introducing the obtained mixed powder into a ball mill tank and adding a grinding ball for grinding; (viii) filtering mixed powder to remove the grinding ball; (ix) drying powder under vacuum at 110-130 degrees C for 8-10 hours; (x) introducing the dried powder into a graphite mold for hot pressing and sintering; and (xi) cooling furnace to room temperature.