▎ 摘　　要

NOVELTY - Modified-natural rubber comprises natural rubber, graphene oxide and amine antioxidant, and natural rubber is obtained from Brazil rubber. USE - Modified-natural rubber. ADVANTAGE - The modified-natural rubber has good yield and excellent modified mechanical property and oxidation resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing modified-natural rubber, which involves: (A) taking rubber tree branch in Brazil grows to 2-3 puffs, branches and leaves are mechanically harvesting at noon on a sunny day so as to reduce the loss of latex at the incision, and adding foliage powder into a sodium sulfite solution, mixing and stirring to form a homogenization solution; (B) concentrating ammonia to adjust pH value to 11 of obtained homogenization solution, and plant residue is filtering and homogenizing to obtain a natural rubber; (C) adding a surfactant into the graphene oxide aqueous solution, thoroughly crushing and filtering to obtain a slurry; and (D) adding the natural rubber and the amine antioxidant to obtained slurry and subjecting into high-speed mixing and mixing, melt blending and pelletizing in a twin-screw extruder to obtain modified natural rubber with antioxidation.