▎ 摘　　要

NOVELTY - Graphene natural rubber polymer car cushion composite foam material includes 66-74 pts. wt. of natural rubber, 13-17 pts. wt. of isoprene rubber, 9-12 pts. wt. of polyolefin elastomer, 4-6 pts. wt. of nanomedium, 1.5-1.8 pts. wt. of graphene, 1.8-2.2 pts. wt. carbon nanotube, 1.5-2 pts. wt. zinc oxide, 3-4 pts. wt. heat stabilizer, 1.5-1.8 pts. wt. of crosslinking agent, 2-2.4 pts. wt. of expansion agent and 2-2.4 pts. wt. of foaming agent. USE - Graphene natural rubber polymer car cushion composite foam material. ADVANTAGE - The graphene natural rubber polymer car cushion composite foam material has a low density and is ultra-light, and the compression permanent deformation rate is low, the resilience is good, is durable, and is not easy to deform during use, has good mechanical properties such as tensile strength and elongation at break, taking into account ultra-lightness and excellent mechanical properties, and has a broad market application prospects. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a graphene natural rubber polymer car cushion composite foam material, which involves: (A) weighing natural rubber, isoprene rubber, polyolefin elastomer, nano-medium, graphene, carbon nanotubes, zinc oxide, heat stabilizer, cross-linking agent and expansion agent; (B) feeding the natural rubber into the internal mixer and masticate at a temperature of 145-150 degrees C for 12-15 minutes, discharging material, and after the mastication, storing the natural rubber at room temperature for more than 50 hours and reserved; (C) sending natural rubber processed by mixing with isoprene rubber, polyolefin elastomer, nano-medium, graphene, carbon nanotubes, zinc oxide, and heat stabilizer to the mixer at a temperature of 84-88 degrees C for 12-14 minutes, then at a temperature of 104-108 degrees C, mixed for 10-13 minutes; (D) adding the cross-linking agent, expansion agent and foaming agent, and mixing for 8-10 minutes under the condition of temperature 118-122 degrees C, and then discharging the material to obtain the mix rubber compound; (E) sending the mixed rubber mixture to the open mixer, thin it 2 to 4 times on the open mixer, and taking out the tablets to obtain the open rubber mixture; and (F) sending the mixture of raw rubber into a mold, hot-pressing and foaming, cooled and formed, and then cutting into samples to obtain the graphene natural rubber polymer car cushion composite foamed material.