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Crack and Cutting Resistance Properties of Natural Rubber(NR) Compounds with Silica/Carbon Black Dual Phase Filler  

Son, Woo-Jung (Department of Chemical Engineering, Pusan National University)
Cho, Ur-Ryung (Department of Applied Chemical Eng., Korea Univ. of Technology and Education)
Kim, Won-Ho (Department of Chemical Engineering, Pusan National University)
Publication Information
Elastomers and Composites / v.37, no.2, 2002 , pp. 86-98 More about this Journal
Abstract
The application of silica/carbon black dual phase fillers to natural rubber(NR) compound was investigated. When the amounts of filler content were restricted to 60phr, the optimum ratio of dual phase fillers were 25phr/35phr of silica/carbon black. It was found that these new fillers give better overall performance in comparison with carbon black in tear strength, crack resistance, and cutting resistance. Also the thermal degradation resistance of NR vulcanizates which were filled with dual phase fillers was better than that of the carbon black. Dual phase fillers filled NR vulcanizates showed better viscoelastic properties, like tan${\delta}$, for the wet skid resistance and rolling resistance of motor vehicle tires.
Keywords
crack; cutting; silica; step-mixing; dual phase filler; crack resistance; cutting resistance; thermal degradation;
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