TIRE TREAD RUBBER COMPOSITION FOR TRUCK

摘要

PURPOSE: A tire tread rubber composition for a truck is provided, to achieve a suitable cure rate and to improve the exothermic characteristic and the resistance against flexural property. CONSTITUTION: The tire tread rubber composition comprises 100 parts by weight of a raw rubber comprising a natural rubber and a butadiene rubber; 0.7-1.0 parts by weight of sulfur; 0.5-0.7 parts by weight of a benzothiazolesulfenamide-based curing promoter; 0.1-0.3 parts by weight of a guanidine-based curing promoter; and 0.7-1.2 parts by weight of 1,6-bis(N,N'-dibenzylthiocarbamoylthio)-hexane. Preferably the source rubber comprises 50-80 wt% of a natural rubber and 20-50 wt% of a butadiene rubber.