| 摘要 |
PURPOSE: A rubber composition for tire tread is provided to improve braking performance on icy road and wet road, and fuel efficiency while maintaining processability and controllability. CONSTITUTION: A rubber composition for tire tread comprises 5-35 parts by weight of natural rubber, 35-65 parts by weight of solution-polymerized styrene butadiene rubber, 15-45 parts by weight of neodymium butadiene rubber, and 30-120 parts by weight of intermediate dispersibility silica. The solution-polymerized styrene butadiene rubber contains 15-35 weight% of styrene, and 30-50 weight% of vinyl in butadiene. The neodymium butadiene rubber comprises 20-50 parts by weight of oil based on 100.0 parts by weight of crude rubber elastomer contained in the neodymium butadiene rubber. |
