The invention provides a rubber composition used for an automobile suspension
bushing. The composition comprises 80-90 parts of
natural rubber, 10-20 parts of butadiene rubber, 6-8 parts of activatingagent, 1-2 parts of
stearic acid, 1.5-2.5 parts of para-phenylenediamine antiager, 1.5-3.5 parts of
phosphite ester antiager, 1.5-2.5 parts of keto-amine antiager, 2-3 parts of physical antiager, 50-70 parts of reinforcing agent, 10-22 parts of
plasticizer, 2.0-3.0 parts of resin, 2.0-3.0 parts of
tackifier, 2.0-3.0 parts of vulcanizing agent, 1.0-2.0 parts of accelerator and 1.0-2.0 parts of anti-sulphuration
reducing agent. The invention further provides the preparation method of the rubber composition. The rubber composition has good mechanical performance and
fatigue resistance performance, and not only is the
adhesive performance effectively improved, but good
heat resistance performance is provided; the rubber composition is used for the automobile suspension
bushing and maintains good
adhesive performance and low stiffness loss after being used for a long time.