TREAD RUBBER COMPOSITION FOR TRUCK TIRE USING ON ROAD AND OFF-ROAD, AND TRUCK TIRE MANUFACTURED BY USING THE SAME

摘要

PURPOSE: A tread rubber composition for truck tire is provided to improve abrasion resistance and durability and to ensure excellent chipping resistance and cutting resistance while not using a coupling agent. CONSTITUTION: A tread rubber composition for truck tire comprises 100 parts by weight of a base rubber, 30-60 parts by weight of carbon black, 5-25 parts by weight of silica, 2-8 parts by weight of a phenol-free novolac resin as a reinforcing resin, and 2-6 parts by weight of a methylene donating material. The sum of carbon black and silica is 65 parts by weight or less. The base rubber includes 10-30 parts by weight of a styrene butadiene rubber and 70-90 parts by weight of a natural rubber.