Abstract -Epoxidised Natural Rubber as a Coupling Agent in in situ Precipitated Silica


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	Publications of MRB Latest Publications MRB Digest Journal of Rubber Research 3^rd Qtr 2008 Vol 11(3) 2^nd Qtr 2008 Vol 11(2) 1^st Qtr 2008 Vol 11(1) 4^th Qtr 2007 Vol 10(4) 3^rd Qtr 2007 Vol 10(3) 2^nd Qtr 2007 Vol 10(2) 1^st Qtr 2007 Vol 10(1) 1^st Qtr 2006 Vol 9(1) 2^nd Qtr 2006 Vol 9(2) 3^rd Qtr 2006 Vol 9(3) 4^th Qtr 2006 Vol 9(4) Submit paper/article Order Form	Abstract Epoxidised Natural Rubber as a Coupling Agent in in situ Precipitated Silica–Natural Rubber Composites Maya, K.S.,, Rani Joseph#, Jacob K. Varkey* and Benny George* Natural rubber (NR) compounds were prepared with in situ precipitated silica in the presence of epoxidised natural rubber (ENR) as a coupling agent. In situ silica masterbatches were prepared from NR latex along with ENR. For this, NR latex was mixed with a suitable amount of ENR latex and precipitation of silica was carried out using sodium silicate and ammonium chloride. Compounds were prepared with these masterbatches. The mechanical properties of the vulcanisates were compared with two reference compounds prepared from NR and commercially available silica with and without a silane-coupling agent Si-69^®. The NR-silica composites prepared with ENR as the coupling agent showed better mechanical properties and improved rubber-filler interaction. back
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