▎ 摘　　要

NOVELTY - Composite material comprises 100 pts. wt. natural rubber, 0.1-5 pts. wt. amino-modified graphene oxide, 0.5-1.5 pts. wt. accelerator, 0.5-1 pts. wt. antioxidant, 1-2 pts. wt. stearic acid, 1-5 pts. wt. zinc oxide and 1.5-3 pts. wt. sulfur. The preparation method of the amino modified graphene oxide comprises mixing the graphene oxide dispersion with diamino diphenyl sulfone, and performing amination modification to obtain amino modified graphene oxide. USE - The composite material is used for military tire, vehicle shock absorption, aircraft stealth and structural member. ADVANTAGE - The amino-modified graphene oxide/natural rubber composite material has excellent mechanical property and conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation method of composite material, comprising (i) mixing amino-modified graphene oxide, accelerator, anti-aging agent, stearic acid, zinc oxide and sulfur after the natural rubber is refining to obtain mixed rubber; and (ii) vulcanizing the mixed rubber obtained in the step (i) to obtain the material.