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http://dx.doi.org/10.7473/EC.2012.47.2.148

Thermal Aging Behaviors of Weather Resistant Rubber Composites of EPDM, IIR, and BIIR  

Choi, Sung-Seen (Department of Chemistry, Sejong University)
Kim, Jong-Chul (Department of Chemistry, Sejong University)
Publication Information
Elastomers and Composites / v.47, no.2, 2012 , pp. 148-155 More about this Journal
Abstract
EPDM, IIR, and BIIR composites were thermally aged and the crosslink density changes were investigated. Crosslink densities of the EPDM composite increased with increasing the aging time and temperature, whereas those of IIR and BIIR composites for long-term aging at high temperatures tended to decrease. Activation energies for the crosslink density changes of the EPDM composite were higher than those of the BIIR one. The experimental results were explained with the number of allylic hydrogens, activation of the zinc complex, the steric hindrance effect, and oxidation of rubber chain.
Keywords
thermal aging; EPDM; IIR; BIIR; crosslink density change; activation energy;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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