| 摘要 |
A rubber composition for tires is provided to improve crack resistance by using zinc naphthenate as a dispersing agent for improving dispersibility of a reinforcement filler. A rubber composition for tires includes 100 parts by weight of raw material rubbers, 50-60 parts by weight of at least any one reinforcement filler selected from carbon black having an iodine adsorption value of 32-40 mg/g and a DBP adsorption value of 87-95 mg/100 g, silica having an iodine adsorption value of 30-50 mg/g and a DBP adsorption value of 80-100 mg/100 g, calcium carbonate, clay, and talc, 2-4 parts by weight of zinc naphthenate as a dispersing agent, 1.9-2.4 parts by weight of 80%-CRYSTEX as a vulcanizing agent, and 0.7-0.9 parts by weight of N-tert-butyl-2-benzothiazolesulfenamide as a vulcanization accelerator. |
