| 摘要 |
PURPOSE: Provided is a tire tread rubber composition, which has improved wear resistance compared with conventional tread rubber compositions with maintaining other physical properties. CONSTITUTION: The tire tread rubber composition is characterized by comprising 110-130 parts by weight of a carbon black based on 100 parts by weight of a natural rubber. In particular, the carbon black is obtained by milling it with a styrene-butadiene rubber to form powder having a nano-scaled particle size, and has an iodine adsorption value of 115-120 mg/g and DBP adsorption value of 135-140 ml/100g. The tire tread composition optionally further comprises a conventional additive, such as a vulcanization accelerator, an anti-aging agent and zinc oxide.
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