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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

Abstract

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.

Keywords

Correlation Artificial weathering tests Ethylene–propylene–diene monomer 

Notes

Acknowledgments

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.

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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

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