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http://dx.doi.org/10.6108/KSPE.2019.23.1.046

Study on the Degradaion Behavior of Acrylonitrile Rubber(NBR) O-ring by Intermittent CSR and Time-Temperature Superposition Principle  

Lee, Jin Hyok (Rubber Research Division, Korea Institute of Footwear & Leather Technology)
Bae, Jong Woo (Rubber Research Division, Korea Institute of Footwear & Leather Technology)
Choi, Myung Chan (Rubber Research Division, Korea Institute of Footwear & Leather Technology)
Yun, Yu Mi (Rubber Research Division, Korea Institute of Footwear & Leather Technology)
Kim, Wonho (Department of Polymer Science and Chemical Engineering, Pusan National University)
Park, Sung Han (Agency for Defense Development)
Jo, Nam-Ju (Department of Polymer Engineering, Pusan National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.1, 2019 , pp. 46-51 More about this Journal
Abstract
Intermittent CSR testing was used to investigate the degradation of a NBR O-ring, and also the prediction of its life-time. An intermittent CSR jig was designed taking into consideration the O-ring's environment under use. Degradation of O-rings by thermal aging was observed between $40^{\circ}C$ and $120^{\circ}C$. O-rings showed non-linear degradation behavior under $80^{\circ}C$. At 20% of failure condition, predicted life-times were 32.5 years by Arrhenius plot and 22.6 years by WLF plot.
Keywords
NBR O-rng; Intermittent CSR(compression stress relaxation) test; Degradation behavior; Time-temperature superposition principle;
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  • Reference
1 ISO 11346, "Rubber, vulcanized or thermopl astic - Estimation of life-time and maximum temperature of use", 2004.
2 K.T. Gillen, "Non-Arrhenius behavior for oxidative degradation of chlorosulfuonated polyethylene materials", Polymer Degradation and Stability, Vol. 87, pp. 335-346, 2005.   DOI
3 K.T. Gillen, "Validation of improved methods for predicting long-term elastomeric seal lifetimes from compression stress-relaxation", Polymer Degradation and Stability, Vol. 82, pp. 25-35, 2003.   DOI
4 P. Tuckner, "Compression, Compression stress relaxation test comparisons and development", SAE Technical report 2000-01-0752, 2001.
5 P. Tuckner, "Compression stress relaxation testing - comparisons, methods, and correlations", SAE Technical report 2001-01-0742, 2001.
6 M. Celina, K.T. Gillen, and R.A. Assink, "Accelerated aging and lifetime prediction : Review of non-Arrhenius behavior due to two competing processes", Polymer Degradation and Stability, Vol. 90, Issue. 3, pp. 395-404, 2005.   DOI
7 S. Ronan, T. Alshuth, S. Jerrams and N. Murphy, "Long-term stress relaxation prediction for elastomers using the time-temperature superposition method", Materials & Design, Vol. 28, pp. 1513-1523, 2007.   DOI
8 R. W. Ogden and D. G. Roxburgh, "A pseudo-elastic model for the Mullins effect in filled rubber", Proceedings: Mathematical, Physical and Engineering Sciences, Vol. 455, pp. 2861-2877, 1999.   DOI