TIRE TREAD RUBBER COMPOSITION HAVING IMPROVED ANTI-WEAR PROPERTY AND ROTATIONAL RESISTANCE

摘要

PURPOSE: Provided is a tire tread rubber composition having improved anti-wear property and rotational resistance than a conventional rubber composition using a carbon black. CONSTITUTION: The tire tread rubber composition comprises a rubber selected from the group consisting of a natural rubber, a synthetic rubber or a mixture thereof. The tire tread rubber composition is characterized by further comprising 45-80 phr of a nano-structured carbon black having a BET surface area of 90-120 m¬2/g, DBP of 110-150 ml/100 g, an average agglomerate size of 100-140 nm and a width of 60 nm or more as a reinforcing agent, based on 100 phr of the rubber.