Fire Resistance Properties of Chloroprene Rubber containing Inorganic Flame Retardant

  • Received : 2015.10.05
  • Accepted : 2015.10.16
  • Published : 2015.12.31


This study examined the mechanical properties and the flame retardant properties of CR rubber containing inorganic flame retardant with various contents of aluminium trihydroxide (ATH, $Al(OH)_3$). The content of aluminium trihydroxide was added in 0, 30, 50, 70 and 100 phr for T1~T5 samples. It was found that increasing the amount of addition over 30 phr resulted in decreasing the mechanical properties. On the other hand in oxygen index measurements T1 sample showed a value of 38.6%, indicating the improvement of flame retardant properties showed a value of 49.7~64.2%. In case of burn test, it was confirmed that CR rubber containing over ATH 50phr content showed performance corresponding to that of first grade fire-resistance.


Supported by : 부경대학교


  1. J. K. Kallitsis and N. K. Kalfoglou, "Compatibility of epoxidized natural rubber with thermoplatics and thermosetting resins", J. Appl. Polym. Sci., 37, 453 (1989).
  2. T. Marinovic, M. Sustar, A. Pertot, and Z. Susteric, "Properties and morphology of crosslinked butadiene-acrylonitrile rubber and polysulphide rubber (NBR/TM) blends", Polym. Int., 45, 77 (1998).<77::AID-PI889>3.0.CO;2-#
  3. S. H. Botros and Abdel-Nour, "Preparation and characterization of butyl/NBR vulcanizates", Polym. Degrad. Stab., 62, 479 (1998).
  4. A. Genovese and R. A. Shanks, "Structural and thermal interpretation of the synergy and interactions between th fire retardants magnesium hydroxide and zinc borate", Polym. Degrad. Stab, 92, 2 (2007).
  5. T. S. Hwang, B. J. Lee, Y. K. Yang, J. H. Choi, and H. J. Kim, "The R&D Trends of Polymer Flame Retardants", Korean Industrial Chemisry News, 8(6), 36 (2005).
  6. D. W. Shin, C. S. Hong, and J. Ko, Ins. Rubb. Ind., 30, 4 (1995).
  7. M. Lewin, S. M. Atlas, and E. M. Pearce, Flame Retardant Polymeric Material; Plenum Press: Oxford, U. K., 1975; Vol. I, p 19.
  8. Cho, W. J. Elastomer 30, 4 (1995).
  9. H. Ismail and H. C. Leong, "Curing characteristics and mechanical properties of natural rubber/chloroprene rubber and epoxidized natural rubber/chloroprene rubber blends", Polym. Test., 20, 509 (2001).
  10. B. K. Kim and I. H. Kim, "Blends of Epoxidized Natural Rubber with Chloroprene Rubber", Polym.-Plast. Technol. Eng., 32, 167 (1993).
  11. ASTM Designation, D 2084 76T, 1972
  12. ISO 4589-2, "Plastics Determination of burning behaviour by oxygen index", (2011).
  13. KS M 6678, "Flame Resistant Conveyor Belt - Classification and Test Method", (2008).
  14. K. H. Seo and D. G. Kang, "The effect of fillers on rubber characteristics for gasket to lithium ion battery", Polymer (Korea), 34, 5 (2010).
  15. F. S. Conant, "Rubber Technology", Chapter 5. 3rd. Va Nostrand, New York (1987).
  16. G. Camino, S. M. Lomakin, and M. Lazzari, "Polydimethylsiloxane thermal degradation Part 2. The degradation mechanisms", Polymer, 43, 2011 (2002).
  17. Y. S. Lee, W. K. Lee, S. G. Cho, I. Kim, and C. S. Ha, "Quantitative analysis of unknown compositions in ternary polymer blends: A model study on NR/SBR/BR system", J. Anal. Appl. Pyrol., 78, 89 (2007).
  18. B. T. Poh and E. K. Tan, "Mooney scorch time and cure index of epoxidized natural rubber in presence of sodium carbonate", J. Appl. Polym. Sci., 82, 6 (2001).
  19. S. J. Kim, "Flame Retardant Plastics", Polym. Sci. Technol., 6, 118 (1995).

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