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A Study on Thermal Degradation of Acrylonitrile Butadiene Rubber  

Kim, Ki-Yup (Korea Atomic Energy Research Institute)
Kang, Hyun-Koo (Korea Atomic Energy Research Institute)
Lee, Chung (Korea Atomic Energy Research Institute)
Ryu, Boo-Hyung (Department of Safety Engineering, Dongguk University)
Publication Information
Journal of the Korean Society of Safety / v.18, no.4, 2003 , pp. 57-63 More about this Journal
Abstract
Thermal degradation of Acrylonitrile butadiene rubber(NBR), which is used for O-ring material as elastomeric sealed diaphragm value in the nuclear power plants, is examined. The thermal degradation is accelerated at 130$^{\circ}C$ by Arrhenius exploit method using the activation energy calculated by thermogravimetric analysis. The weight loss temperature and glass transition temperature are verified for thermally aged NBR. The relationship between dynamic mechanical properties and elongation at break are also investigated. The threshold alue of thermally aged NBR is a ten year in the change of elongation at break.
Keywords
thermal degradation; NBR; TGA; DSC; DMA;
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Times Cited By KSCI : 1  (Citation Analysis)
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