Effect of Eco-friendly Inorganic Flame Retardants on Mechanical and Flame-Retardant Properties of EPDM Compound

  • Do, Jong Hwan (Material Development Team, DATWYLER Sealing Solutions) ;
  • Kim, Do Young (Department of Polymer Science & Engineering, Kyungpook National University) ;
  • Seo, Kwan Ho (Department of Polymer Science & Engineering, Kyungpook National University)
  • Received : 2019.12.05
  • Accepted : 2020.01.14
  • Published : 2020.03.31


In this study, the mechanical and flame-retardant properties of ethylene-propylene-diene-termonomer (EPDM) based rubber compounds and various other environmentally friendly inorganic flame retardants were investigated. Alumina trihydrate (ATH) and magnesium hydroxide (MDH) were used as inorganic flame retardants. The mechanical properties after thermal oxidation aging and the flame-retardant properties of the EPDM compounds were measured using a moving die rheometer, a universal testing machine, a compression set, and a UL 94 V flammability test. We focused on how the properties were affected by the type and amount of flame retardants. The results demonstrated that the optimal mechanical and flame-retardant V-0 grade properties were obtained at an ATH content of 200 phr.


Supported by : 경북대학교


  1. W. Hofmann, "Rubber Technology Handbook", Hanser Publishers, New York, 1994.
  2. I. Franta, "Elastomers and Rubber Compounding Materials", Elsevier, New York, 1989.
  3. Indian Rubber Institute, "Rubber Engineering", McGraw-Hill, New York, 2000.
  4. J. A. Brydson, "Rubbery Materials and Their Compounds", Elsevier, New York, 1988.
  5. B. N. Jang and J. H. Choi, "Research Trends of Flame Retardant and Flame Retardant Resin", Polym. Sci. Tech., 20, 8 (2009).
  6. Menachem Lewin, S. M. Atlas, and Eli M. Pearce, "Flame-Retardant Polymeric Materials Volume 3", Plenum Press, New York, 2012.
  7. S. Y. Lu and I. Hamerton, "Recent developments in the Chemistry of Halogen-free Flame Retardant Polymers", Prog. Polym. Sci., 27, 1661 (2002).
  8. S. Bourbigot and S. Duquesne, "Fire Retardant Polymers: Recent Developments and Opportunities", J. Mater. Chem., 17, 2283 (2007).
  9. C. de Wit, "An Overview of Brominated Flame Retardants in the Environment", Chemosphere, 46, 583 (2002).
  10. J. H. Troitzsch, "Overview of Flame Retardants", Chim. Oggi, 16, 1 (1998).
  11. P. R. Hornsby and C. L. Watson, "A Study of the Mechanism of Flame Retardance and Smoke Suppression in Polymers Filled with Magnesium Hydroxide", Polym. Degrad. Stab., 30, 73 (1990).
  12. W. S. Ahn and S. H. Lee, "A Study on Vulcanization Reaction of Modified Rubber Blends Using Dynamic Differential Scanning Calorimetry", Elastomer, 38, 326 (2003).
  13. G. J. Lake and A. G. Thomas, "Engineering with Rubber-How to Design Rubber Components", Oxford University Press, New York, 1992.
  14. E. H. Seo, G. H. Kim, D. Y. Kim, D. W. Lee, and K. H. Seo, "Effect of Co-agent on Cure, Mechanical Properties of NBR Compounds in Peroxide System", Elastomers and Composites, 52, 187 (2017).
  15. U. A. Pinto, L. L. Y. Visconte, J. Gallo, and R. C. R. Nunes, "Flame Retardancy in Thermoplastic Polyurethane Elastomers (TPU) with Mica and Aluminum Trihydrate (ATH)", Polym. Degrad. Stab., 69, 257 (2000).