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Influence of Silane Coupling Agent on Retraction Behaviors of NR Vulcanizates Reinforced with Carbon Black and Clay  

Choi, Sung-Seen (Department of Applied Chemistry, Sejong University)
Park, Byung-Ho (Kumho Research and Development Center)
Kim, Wan-Soo (Hankook Tire Co.)
Kim, Wan-Doo (Micro System & Structural Mechanics Group, Korea Institute of Machinery and Materials)
Publication Information
Elastomers and Composites / v.40, no.2, 2005 , pp. 112-118 More about this Journal
Abstract
Influence of a silane coupling agent on the reatraction behaviors of NR vulcanizates reinforced with carbon black and c lay was studied. Bis-(3-(triethoxysilyl)-propyl )-tetrasulfide (TESPT) was used as a silane coupling agent. The vulcanizates containing the silane coupling agent were, on the whole, recovered faster than those without the silane coupling agent. However, for the vulcanizate with the higher clay content at low temperature region (below $-12^{\circ}C$), the vulcanizate containing the silane coupling agent was recovered slower than that without the silane coupling agent. The recovery difference of the vulcanizates with and without silane coupling agent decreased with increase of clay content. The experimental results were explained with crosslink density, modulus, and bound rubber content.
Keywords
refraction behaviors; silane coupling agent; carbon black and caly; NR vulcanizate;
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