| 摘要 |
A rubber composition for tire tread is provided to improve processability in the un-vulcanized state, to maintain control stability, braking ability and wear performance and to reduce rotation resistance. A tire tread rubber composition comprises base rubber 100 parts by weight and silica as a reinforcing filler. The base rubber comprises solution polymerization styrene-butadiene rubber 60-80 weight%, neodymium butadiene rubber (Nd-BR) 10-20 weight% and butadiene rubber gel 10-20 weight%. The butadiene rubber gel contains a hydroxyl group.
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