Correlation Between UV/Condensation and Xe Artificial Weathering Tests on Ethylene–Propylene–Diene Monomer Rubber

  • Quanlin Zhao
  • Xiaogang Li
  • Zhengfang Ye
Technical Article---Peer-Reviewed


Artificial weathering tests on ethylene–propylene–diene monomer (EPDM) rubber were conducted in a fluorescent UV/condensation weathering equipment (E-UV environment) and a xenon lamp light exposure and weathering equipment (E-Xe environment) for different time periods. The correlation between E-UV and E-Xe environment was investigated by using crosslink density as criteria. Thermal gravimetric analysis (TGA) was used to evaluate the thermal stability of EPDM. The fracture morphology was monitored by scanning electron microscope (SEM). The results showed that the correlation between E-UV and E-Xe environments can be expressed as: \( t_{\text{Xe}} = - 7.4818 + 1.1837t_{{{\text{Xe}}{-}{\text{UV}}}} , \) where the correlation coefficient R is 0.9856. The thermal stability of EPDM did not deteriorate dramatically on exposure to the two artificial weathering environments. An oxidation layer was formed after 90 days of exposure.


Correlation Artificial weathering tests Ethylene–propylene–diene monomer 



The authors are grateful for the financial support from the National Natural Science Foundation of China, whose register numbers are 50533060 and 50571013. The authors are also thankful for the financial support of National R&D Infrastructure and Facility Development Program of China, whose register number is 2005DKA10400.


  1. 1.
    Assink, R.A., Gillen, K.T., Sanderson, B.: Monitoring the degradation of a thermally aged EPDM terpolymer by 1H NMR relaxation measurements of solvent swelled samples. Polymer 43, 1349–1355 (2002)CrossRefGoogle Scholar
  2. 2.
    Chou, H.W., Huang, J.S., Lin, S.T.: Effects of thermal aging on fatigue of carbon black-reinforced EPDM rubber. J. Appl. Polym. Sci. 103, 1244–1251 (2007)CrossRefGoogle Scholar
  3. 3.
    Zaharescu, T., Giurginca, M., Jipa, S.: Radiochemical oxidation of ethylene–propylene elastomers in the presence of some phenolic antioxidants. Polym. Degrad. Stab. 63, 245–251 (1999)CrossRefGoogle Scholar
  4. 4.
    Rivaton, A., Cambon, S., Gardette, J.L.: Radiochemical ageing of ethylene–propylene–diene elastomers. 4. Evaluation of some anti-oxidants. Polym. Degrad. Stab. 91, 136–143 (2006)CrossRefGoogle Scholar
  5. 5.
    Giurginca, M., Zaharescu, T., Meghea, A.: Degradation of ethylene–propylene elastomers in the presence of ozone. Polym. Degrad. Stab. 50, 45–48 (1995)CrossRefGoogle Scholar
  6. 6.
    Mitra, S., Ghanbari-Siahkali, A., Almdal, K.: A novel method for monitoring chemical degradation of crosslinked rubber by stress relaxation under tension. Polym. Degrad. Stab. 91, 2520–2526 (2006)CrossRefGoogle Scholar
  7. 7.
    Mitra, S., Ghanbari-Siahkali, S., Kingshott, P., Rehmeier, H.K., Abildgaard, H., Almdal, K.: Chemical degradation of crosslinked ethylene-propylene-diene rubber in an acidic environment. Part I. Effect on accelerated sulphur crosslinks. Polym. Degrad. Stab. 91, 69–80 (2006)CrossRefGoogle Scholar
  8. 8.
    Mitra, S., Ghanbari-Siahkali, A., Kingshott, P., Hvilsted, S., Almdal, K.: Surface characterisation of ethylene–propylene–diene rubber upon exposure to aqueous acidic solution. Appl. Surf. Sci. 252, 6280–6288 (2006)CrossRefGoogle Scholar
  9. 9.
    Aimura, Y., Wada, N.: Reference materials for weathering tests on rubber products. Polym. Test. 25, 166–175 (2006)CrossRefGoogle Scholar
  10. 10.
    Zhao, Q.L., Li, X.G., Gao, J.: Aging of ethylene–propylene–diene monomer (EPDM) in artificial weathering environment. Polym. Degrad. Stab. 92, 1841–1846 (2007)CrossRefGoogle Scholar
  11. 11.
    Zhao, Q.L., Li, X.G., Gao, J.: Surface degradation of ethylene–propylene–diene monomer (EPDM) containing 5-ethylidene-2-norbornene (ENB) as diene in artificial weathering environment. Polym. Degrad. Stab. 93, 92–99 (2008)Google Scholar

Copyright information

© ASM International 2011

Authors and Affiliations

  1. 1.Department of Environmental EngineeringPeking University, The Key Laboratory of Water and Sediment Sciences, Ministry of EducationBeijingChina
  2. 2.School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina

Personalised recommendations