▎ 摘　　要

NOVELTY - Road bridge shock insulation rubber bearing saddle comprises ethylene propylene diene monomer/graphene composite rubber sheet, steel sheet layer, fluororubber/graphene composite rubber sheet, thin steel plate layer and chlorobutyl rubber/graphene composite rubber sheet layer, where each of the composite rubber sheets has thickness of 10-30 mm, and the thin steel sheet layer has thickness of 1-4 mm. USE - The rubber bearing saddle is useful in the field of bridge construction for road traffic. ADVANTAGE - The rubber bearing saddle: has improved shock absorbing and flexing flexibility, and strong ability to withstand light, ozone, rain and ultraviolet rays, and has long service life under natural conditions; and ensures structural stability of the bridge. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing road bridge shock insulation rubber bearing saddle comprising (i) adding graphene oxide into deionized water and dispersing ultrasonically for 1-1.5 hours to obtain graphene oxide dispersion having mass concentration of 4-6 mg/l, (ii) adding ammonia cyanate into the graphene oxide dispersion, and transferring to 0 degrees C ice water bath, magnetically stirring for 30-35 minutes, adding reducing agent and stirring for 30-35 minutes, heating at 80-85 degrees C constant temperature, stirring for 1-1.5 hours, filtering, washing and drying to obtain modified graphene, (iii) placing ethylene propylene diene monomer rubber, fluorine rubber and chlorinated butyl rubber into the internal mixer separately, modifying each rubber separately with graphene, nano zinc oxide, hindered phenol A080, coupling agent, stearic acid, sulfur, accelerator, and other additives, mixing at 150-180 degrees C for 10-15 minutes to obtain three kinds of rubber compounds, (iv) thinly spreading three kinds of rubber compounds on the open mill, and packaging triangle, mixing mixture at 60-70 degrees C for 1-2 hours to obtain ethylene propylene diene monomer/graphene composite rubber sheets, fluororubber/graphene composite rubber sheet and chlorobutyl rubber/graphene composite rubber sheet, (v) alternately laminating the three graphene composite rubber sheets and two layers of thin steel sheets in a mold, and performing vulcanization treatment, carrying out overall jacket assembly to obtain final product.