| 摘要 |
PURPOSE: Provided is a silica reinforced tire tread rubber composition applying a conductive carbon black, which improves electroconductivity without reducing rotation resistance and brake property. CONSTITUTION: The silica reinforced tire tread rubber composition contains the silica as a reinforcing filler and less than 30phr of the conductive carbon black having a surface area of 500-1200mg/g and a DBP adsorption value of 150-400ml/100g, wherein the conductivity is increased when the particle size of the carbon black is small and the surface area of the carbon black is large. |
