Recovery Behaviors of Natural Rubber Composites Thermally Aged in Altering Medium Systems of Air and Water

공기와 물의 교매질 시스템에서 열노화된 천연고무 복합체의 회복 거동

  • Choi, Sung-Seen (Department of Chemistry, Sejong Polymer Research Center, Sejong University) ;
  • Kim, Ok-Bae (Department of Chemistry, Sejong Polymer Research Center, Sejong University)
  • Received : 2013.04.18
  • Accepted : 2013.05.10
  • Published : 2013.09.30


Unfilled, carbon black-filled, and silica-filled natural rubber (NR) composites were aged with a circular deformation at $60-90^{\circ}C$ and the recovery behaviors were investigated. The samples were aged under the altering aging medium systems of air and distilled water every day for 10 days. The order of the recoveries according to the filler systems was unfilled > silica > carbon black. The recoveries of the samples aged in the air to water altering system were greater than those of the samples aged in the water to air altering system. The initial aging medium dominantly influenced the deformation level.


  1. B. Erman and J. E. Mark, "Rubber-like elasticity", Annu. Rev. Phys. Chem., 40, 351 (1989).
  2. K. T. Gillen, R. Bernstein, and M. H. Wilson, "Predicting and confirming the lifetime of o-rings", Polym. Degrad. Stab., 87, 257 (2005).
  3. T. Cui, C.-W. Lin, C. H. Chien, Y. J. Chao, and J. W. Van Zee, "Service life estimation of liquid silicone rubber seals in polymer electrolyte membrane fuel cell environment", J. Power Sources, 196, 1216 (2011).
  4. S. Ronan, T. Alshuth, S. Jerrams, and N. Murphy, "Long-term stress relaxation prediction for elastomers using the time-temperature superposition method", Mater. Design, 28, 1513 (2007).
  5. S.-S. Choi, H.-M. Lee, J.-E. Ko, and M.-C. Kim, "Recovery behaviors of silica-reinforced SBR vulcanizates using circular deformation test", J. Ind. Eng. Chem., 13, 1169 (2007).
  6. S.-S. Choi and D.-H. Han, " Recovery prediction of thermally aged chloroprene rubber composite using deformation test", J. Appl. Polym. Sci., 110, 3560 (2008).
  7. S.-S. Choi and D.-H. Han, " Comparison of recovery behaviors of thermally aged SBR composite from compressed and circular deformations", Thermochimica Acta, 490, 8 (2009).
  8. S.-S. Choi and D.-H. Han, "Strain effect on recovery behaviors from circular deformation of natural rubber vulcanizate", J. Appl. Polym. Sci., 114, 935 (2009).
  9. S.-S. Choi, J.-H. Jang, S. B. Lee, W. J. Jang, J. S. Oh, and S.-H. Lee, "Circular deformation as a means of simultaneously evaluating the compressive and tensile strain in vulcanized rubber", J. Ind. Eng. Chem., 15, 641 (2009).
  10. S.-S. Choi, "Service lifetime prediction of rubber vulcanizate using circular deformation test", Elast. Compos., 44, 116 (2009).
  11. J.-H. Jang and S.-S. Choi, "Recovery behaviors of NR, SBR and BR vulcanizates from circular deformation", Elast. Compos., 44, 442 (2009).
  12. S.-S. Choi, "Influence of thermal aging on change of crosslink density and deformation of natural rubber vulcanizates", Bull. Korean Chem. Soc., 21, 628 (2000).
  13. S.-S. Choi, "Change of crosslink density of sulfur-cured NR vulcanizates by thermal aging", Kor. Polym. J., 7, 108 (1999).
  14. S.-S. Choi, "Influence of rubber composition on change of crosslink density of rubber vulcanizates with EV cure system by thermal aging", J. Appl. Polym. Sci., 75, 1378 (2000).<1378::AID-APP9>3.0.CO;2-I
  15. S.-S. Choi, "Influence of internal strain on change of crosslink density in rubber vulcanizates", Polym. Int., 50, 107 (2001).<107::AID-PI593>3.0.CO;2-Z
  16. S.-S. Choi, D.-H. Han, S.-W. Ko, and H. S. Lee, "Thermal aging behaviors of elemental sulfur-free polyisoprene vulcanizates", Bull. Korean Chem. Soc., 26, 1853 (2005).
  17. S.-S. Choi, S.-H. Ha, and C.-S. Woo, "Thermal aging behaviors of rubber vulcanizates cured with single and binary cure systems", Bull. Korean Chem. Soc., 27, 429 (2006).
  18. S.-S. Choi and O.-B. Kim, "Influence of aging media and filler system on recovery behaviors of natural rubber composites", Elast. Compos., 47, 156 (2012).
  19. J. S. Kim, J. H. Lee, W. S. Jung, J. W. Bae, H. C. Park, and D. P. Kang, "Effects of reinforcing fillers on far-infrared vulcanization characteristics of EPDM", Elast.Compos., 44, 47 (2009).
  20. K. J. Kim, "Bifunctional silane (TESPD) effects on silica containing elastomer compound Part I: Natural rubber (NR)", Elast. Compos., 44, 134 (2009).
  21. D.-K. Jeon and K. J. Kim, "Bifunctional silane (TESPD) effects on silica containing elastomer compound Part II: Styrene-co-butadiene rubber (SBR)", Elast. Compos., 44, 252 (2009).
  22. S.-S. Choi, J. H. Jang, and S.-H. Im, "Influence of aging medium on recovery behaviors of CR/NR composite from circular deformation", Macromol. Res., 18, 358 (2010).