Article
  • Flame Retardant Synergistic Performance between Cyclic Diphosphonate Ester and Melamine in Polyamide 6
  • Wang X, Jiang J, Yang S, Jin J, Li G
  • Polyamide 6에서 Cyclic Diphosphonate Ester와 Melamine의 난연 효과
  • Wang X, Jiang J, Yang S, Jin J, Li G
Abstract
A commercial cyclic diphosphonate ester (TPMP) and melamine (MA) was combined and added to polyamide 6 (PA6) to prepare the fire retardant PA6. An increase of the oxygen index to 28.6 as well as an improvement of the UL-94 classification to V-0 rating was observed. Cone measureme nts explained the rate of heat release (RHR) decreased and TGA showed the early decomposition and high solid residue due to co-addition of TPMP and MA, suggesting the occurrence of synergistic effect of TPMP and MA on fire resistance of PA6. The morphology of the char developed during combustion showed the appearance of thick, intumescent cells on the surface of retardant PA6, which protects the underlying material from the action of the heat flux or flame and limits the diffusion of combustible volatile products towards the flame and oxygen.

Keywords: polyamide 6; melamine; cyclic diphosphonate ester; flame retardancy

References
  • 1. Fire FLCombustability of Plastics-Flame Retardant and Flame Retarded Plastics, Van Nostrand Reinhold Publication, New York (1991)
  •  
  • 2. Zanetti M, Camino G, Canavese D, Morgan AB, Lamelas FJ, Wilkie CA, Chem. Mater., 14, 189 (2002)
  •  
  • 3. Wang H, Ling Z, Zhuang Y, Chen Z, Fan W, Macromol. Mater. Eng., 288, 272 (2003)
  •  
  • 4. Levchik SV, Levchik GF, Murashko EA, Et ALACS Symposium Series, ACS, Washington, DC, Vol 797, p 214 (2001)
  •  
  • 5. Balabanovich AI, J. Anal. Appl. Pyrolysis, 72, 229 (2004)
  •  
  • 6. Levchik GF, Grigoriev YV, Balabanovich AI, Levchik SV, Klatt M, Polym. Int., 49, 1095 (2000)
  •  
  • 7. Tang Y, Hu Y, Wang S, Gui Z, Chen Z, Fan W, Polym. Int., 52, 1396 (2003)
  •  
  • 8. Songa L, Hu Y, Polym. Degrad. Stabil., 86, 535 (2004)
  •  
  • 9. Balabanovich AI, Levchik GF, Levchik SV, Engelmann J, J. Fire Sci., 20, 71 (2002)
  •  
  • 10. Jin J, Lin T, Jiang J, Journal of Donghua University (Chinese Edition), 32, 7 (2006)
  •  
  • 11. Herrera M, Wilhelm M, Matuschek G, Kettrup A, J. Anal. Appl. Pyrolysis, 58, 173 (2001)
  •  
  • 12. Nielsen M, Jurasek P, Hayashi J, Furimsky E, J. Anal. Appl. Pyrolysis, 35, 43 (1995)
  •  
  • 13. Levchik SV, Costa L, Camino G, Polym. Degrad. Stabil., 36, 229 (1992)
  •  
  • 14. Bockhorn H, Donner S, Gernsbeck M, Hornung A, Hornung U, J. Anal. Appl. Pyrolysis, 58, 79 (2001)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2008; 32(2): 125-130

    Published online Mar 25, 2008

  • Received on Nov 6, 2007
  • Accepted on Jan 15, 2008