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http://dx.doi.org/10.7317/pk.2013.37.3.269

Effects of Accelerators on the Vulcanization Properties of Silica vs. Carbon Black Filled Natural Rubber Compounds  

Kim, Sung-Min (Dongah Tire & Rubber Co. Ltd.)
Kim, Kwang-Jea (Dongah Tire & Rubber Co. Ltd.)
Publication Information
Polymer(Korea) / v.37, no.3, 2013 , pp. 269-275 More about this Journal
Abstract
Thiuram (DPTT, TMTD), thiazole (MBT, MBTS), sulfenamide (CBS, NOBS), and zinc containing thiuram (dithiocarbamate) (ZDBC) type accelerators were added into silica and carbon black filled natural rubber (NR) compounds. Their effects on vulcanization time and rate were compared. The vulcanization rate of thiuram type accelerator added compounds showed the fastest rate, followed by thiazole and sulfenamide types. Silica filled natural rubber (NR) compounds showed a slower vulcanization time ($t_{s2}$, $t_{10}$, $t_{90}$) and lower cure rate index (CRI) than carbon black filled ones upon each accelerator.
Keywords
accelerators; carbon black; silica; natural rubber; vulcanization time; rate;
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