▎ 摘　　要

NOVELTY - Silicone rubber composite material comprises silicone rubber, silica, iron(II, III) oxide, graphene, modifiers, lubricants and crosslinking agents, where the median particle diameter (D50) of iron (II, III) oxide is 600-1000nm. The modifier is hexamethyldisilazane (HMDS). The mass ratio of silicon rubber, silica, iron (II, III) oxide, graphene and lubricant is 100: (30-50): (1-30): (0.5-2): (1-10), the mass ratio of modifier and silica is (15 -25): 100. The mass ratio of cross-linking agent and other components is (1-5): 100. USE - The silicone rubber composite material is useful as electromagnetic shielding material (claimed). ADVANTAGE - The composite material: is simple and suitable for industrial production; has excellent electromagnetic shielding, mechanical and aging resistance properties. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing the silicone rubber composite material comprising (i) mixing the components except the cross-linking agent in the raw material composition to obtain mixed rubber and (ii) vulcanizing the mixed rubber and cross-linking agent to obtain the final product; and a silicone rubber composite material prepared by the above preparation method.