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

실란 커플링제가 카본블랙과 점토로 보강된 천연 고무 가황물의 회복 특성에 미치는 영향

  • Published : 2005.06.30

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.

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