Abstract - Cure Characteristics and Mechanical Properties of Vulcanised Natural Rubber by Using a New Binary Accelerator System


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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 Cure Characteristics and Mechanical Properties of Vulcanised Natural Rubber by Using a New Binary Accelerator System Natural Rubber was vulcanised with a new binary accelerator system: 1-phenyl-2, 4-dithiobiuret (DTB)/2, 4-morpholinothio benzothiazole sulphenamide. The processing characteristics of the mix showed a significant reduction in cure time with the addition of DTB. Mechanical properties of the vulcanisates showed a better performance. DTB does not change the stress-strain nature of natural rubber. The observed mechanical properties could be correlated with network characteristics of the vulcanisates. The chemical characterisation of the vulcanisates was done by swelling measurements. The crosslink density obtained by swelling measurements was compared to that obtained by stress-strain measurements. Based on the processing, mechanical and chemical characterisation of the vulcanisates an optimum concentration of DTB was found.
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