Thermal degradation of wood treated with flame retardants



Wood, one of the most flammable materials, was treated with various compounds containing nitrogen, phosphorus, halogens, and boron. For a study of flame retardance from the standpoint of thermal degradation, the samples were subjected to thermogravimetry (TG), differential thermal analysis (DTA) and differential thermogravimetry (DTG) in nitrogen to determine if there were any characteristic correlations between thermal degradation behaviors and the level of flame retardance. From the resulting data, kinetic parameters for different stages of thermal degradation are obtained using the method of Broido. The energies of activation for the decomposition of samples are found to be from 72 to 109 kJ mol–1. For wood and modified wood, the char yields are found to increase from 10.2 to 30.2%, LOI from 18 to 36.5, which indicates that the flame retardance of wood treated with compounds is improved. The flame retardant mechanism of different compounds has also been proposed.


degradation DTA DTG flame retardant TG wood 


  1. 1.
    Woo, JK, Schniewind, AP 1987Holzforsch.41305CrossRefGoogle Scholar
  2. 2.
    Berndt, H, Schniewind, AP, Woo, JK 1990Holzforsch.44439Google Scholar
  3. 3.
    Brady, TP, Langer, HG,  et al. 1980Thermal AnalysisBirkhauser VerlagBasel443W. Hemminger (Ed)Google Scholar
  4. 4.
    Broido, A 1969J. Polym. Sci. Part A-271761CrossRefGoogle Scholar
  5. 5.
    S. C. Juneja, 1975, U. S. 3,887,511.Google Scholar
  6. 6.
    Bagga, SL, Jain, RK, Gur, IS, Bhatnagar, HL 1990British Polymer Journal22107Google Scholar
  7. 7.
    Chen, Y, Xie, JQ, Zhang, B, Zeng, XC 2004J. Therm. Anal. Cal.75847CrossRefGoogle Scholar
  8. 8.
    H. G. Wiedemann and I. Lamprecht, Chapter 14, Wood, Handbook of Thermal Analysis and Calorimetry, 4 (1999) 765.Google Scholar
  9. 9.
    Jain, RK, Lal, K, Bhatnagar, HL 1985J. Appl. Polym. Sci.30897CrossRefGoogle Scholar
  10. 10.
    Bartkowiak, M, Zakrzewski, R 2004J. Therm. Anal. Cal.77295CrossRefGoogle Scholar
  11. 11.
    Hirata, T, Kawamoto, S 1991Fire Mater.1527CrossRefGoogle Scholar
  12. 12.
    Gao, M, Zhu, K, Sun, CY 2004J. Therm. Anal. Cal.75221CrossRefGoogle Scholar
  13. 13.
    Gao, M, Pan, DX, Sun, CY 2003J. Fire Sci.21189CrossRefGoogle Scholar
  14. 14.
    Nakanishi, S, Hashimoto, T 1998Textile Res J.68807Google Scholar

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© Springer-Verlag 2006

Authors and Affiliations

  1. 1. Department of Safety and Environmental Engineering, North China Institute of Science and TechnologyNational Safety Training Center of Coal MinesYanjiao BeijingP. R. China
  2. 2.Department of Basic Subject, North China Institute of Science and TechnologyNational Safety Training Center of Coal MinesYanjiao BeijingP. R. China

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