| 摘要 |
The abrasion resistance of siliceous filler-reinforced rubber vulcanizates is improved by adding to the unvulcanized rubber composition silane coupling agent comprising a mixture of a mercaptosilane, such as mercaptopropyltrimethoxysilane, and an alkyl alkoxysilane, such as methyltrimethoxysilane. The mercaptosilane is present in amounts of between 0.3 and 15 parts per hundred parts of rubber, and the weight ratio of mercaptosilane to alkyl alkoxysilane is between 0.15:1 and 15:1. Preferably, the silanes in a ratio of about 1:1 are admixed with a hydrocarbon process oil and the oil-silane mixture added to the siliceous filler-rubber mixture.
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