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http://dx.doi.org/10.7473/EC.2011.46.2.152

Effects of CR Contents on Rubber Vulcanization and Mechanical Properties of NR/CR Blends  

Ahn, Won-Sool (Department of Chemical Engineering, Keimyung University)
Park, Dong-Ryul (Rubber Research Center, KCW Co.)
Publication Information
Elastomers and Composites / v.46, no.2, 2011 , pp. 152-157 More about this Journal
Abstract
Effects of CR contents in NR/CR blends on the vulcanization kinetics and miscibility were studied by dynamic DSC and TGA, as well as the mechanical properties. While the vulcanization activation energy showed a constant value of $77.5{\pm}2.5$ kcal/mol regardless of CR contents, reaction rate, however, was observed to be somewhat lowered at increased CR contents. Partial miscibility was found between NR and CR phases at lower CR content of 3 wt%, but immiscibility was observed at higher CR content of 21 wt%. Mechanical properties were also affected by this miscibility, showing linear increase of compression set but decrease of tensile strength with CR contents in the blends.
Keywords
NR; CR; Vulcanization; DSC; TGA; Miscibility;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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