| 摘要 |
PURPOSE: A rubber composition for tire side wall is provided to reduce tire deformation by rising modulus, thereby having low fuel efficiency effect, and improving fatigue property which is most important property in a side wall. CONSTITUTION: A rubber composition for tire side wall comprises 100.0 parts by weight of crude rubber, 32-48 parts by weight of carbon black of which average diameter is 26-47 nm, and average diameter of aggressive is 121-140 nm. The DMODE value of the carbon black is 115-135 nm, ΔD50 value is 85-95 nm, heterogeneity index value is 1.40-1.46, iodine adsorption specific surface area is 50-70 m^2/g, nitrogen adsorption specific surface area is 52-74 m^2/g, DBP oil absorption amount is 134-152 cc/100g, and tint is 80-96. |
