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Thermal degradation and evolved gas analysis of epoxy (DGEBA)/novolac resin blends (ENB) during pyrolysis and combustion

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Abstract

The thermal degradation of epoxy (DGEBA) and phenol formaldehyde (novolac) resins blend was investigated by using thermogravimetric analysis (TGA) coupled with Fourier transform infrared spectroscopy and mass spectroscopy. The results of TGA revealed that the thermal degradation process can be subdivided into four stages: drying the sample, fast and second thermal decomposition, and further cracking process of the polymer. The total mass loss of 89.32 mass% at 950 °C is found during pyrolysis, while the polymer during the combustion almost finished at this temperature. The emissions of carbon dioxide, aliphatic hydrocarbons, carbon monoxide, etc., while aromatic products, are emitted at higher temperature during combustion and pyrolysis. It was observed that the intensities of CO2, CO, H2O, etc., were very high when compared with their intensities during pyrolysis, attributed to the oxidation of decomposition product.

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References

  1. May CA. Epoxy resins chemistry and technology, 2nd edition. New York: Marcel Dekker Inc; 1988.

    Google Scholar 

  2. Petrie EM. Epoxy adhesive formulations. New York: McGraw-Hill Publishing; 2006.

    Google Scholar 

  3. Pham HQ, Marks MJ. Encyclopedia of polymer science and technology. New York: Wiley; 2004.

    Google Scholar 

  4. Mitra K. Assessing optimal growth of desired species in epoxy polymerization under uncertainty. Chem Eng J. 2010;162:322–30.

    Article  CAS  Google Scholar 

  5. Gu JW, Zhang GC, Dong SL, Zhang QY, Kong J. Study on preparation and fire-retardant mechanism analysis of intumescent flame-retardant coatings. Surf Coat Technol. 2007;201:7835–41.

    Article  CAS  Google Scholar 

  6. Qian LJ, Long JY, Xu GZ, Jing L, Guo JQ. The non-halogen flame retardant epoxy resin based on a novel compound with phosphaphenanthrene and cyclotriphosphazene double functional groups. Polym Degrad Stab. 2011;96(6):1118–24.

    Article  CAS  Google Scholar 

  7. Limei C, Yong Z, Yinxi Z, Xiangfu Z, Wen Z. Electrical properties and conductive mechanisms of immiscible polypropylene/novolac blends filled with carbon black. Eur Polym J. 2007;43(12):5097–106.

    Article  Google Scholar 

  8. Shasha L, Shuhua Q, Nailiang L, Peng C. Study on thermal conductive BN/novolac resin composites. Thermochim Acta. 2011;523(1–2):111–5.

    Google Scholar 

  9. Derouet D, Morvan F, Bross JC. Chemical modification of epoxy resins by dialkyl(or aryl) phosphates: evaluation of fire behavior and thermal stability. JAppl Polym Sci. 1996;62(11):1855–68.

    CAS  Google Scholar 

  10. Tao X, Xiaoming H. A TG–FTIR investigation into smoke suppression mechanism of magnesium hydroxide in asphalt combustion process. J Anal Appl Pyrol. 2010;87(2):217–23.

    Article  Google Scholar 

  11. Kök MV, Pokol G, Keskin C, Madarasz J, Bagci S. Combustion characteristics of lignite and oil shale samples by thermal analysis techniques. J Therm Anal Calorim. 2004;76(1):247–54.

    Article  Google Scholar 

  12. Marisa SC, Martins QV, de Sonia A, Hernane SB, Marcelo K, Clovis AR. Characterization and thermal behavior of residues from industrial sugarcane processing. J Therm Anal Calorim. 2011;106:753–7.

    Article  Google Scholar 

  13. Sikorska MI, Łyszczek RM. Application of coupled TG–FTIR system in studies of thermal stability of manganese(II) complexes with amino acids. J Therm Anal Calorim. 2004;78(2):487–500.

    Article  Google Scholar 

  14. Anca MM, Lucia O, Apostolescu N, Moldoveanu C. TG–FTIR study on thermal degradation in air of some new diazoaminoderivatives. J Therm Anal Calorim. 2010;100(2):615–22.

    Article  Google Scholar 

  15. Madarász J, Pokol G. Comparative evolved gas analyses on thermal degradation of thiourea by coupled TG–FTIR and TG/DTA–MS instruments. J Therm Anal Calorim. 2007;88:329–36.

    Article  Google Scholar 

  16. Otto K, Bombicz P, Madarász J, Acik IO, Krunks M, Pokol G. Structure and evolved gas analyses (TG/DTA–MS and TG–FTIR) of mer-trichlorotris(thiourea)-indium(III), a precursor for indium sulfide thin films. J. J Therm Anal Calorim. 2011;105:83–91.

    Article  CAS  Google Scholar 

  17. Madarász J, Krunks M, Niinisto L, Pokol G. Evolved Gas Analysis of Dichlorobis(thiourea)zinc(II) by Coupled TG–FTIR and TG/DTA–MS Techniques. J Therm Anal Calorim. 2004;78:679–86.

    Article  Google Scholar 

  18. Toldy A, Szabo A, Novak C, Madarasz J, Toth A, Marosi G. Intrinsically flame retardant epoxy resin—Fire performance and background—Part II. Polym Degrad Stab. 2008;93:2007–13.

    Article  CAS  Google Scholar 

  19. Tansir A. Alshehri SM, Thermal degradation and evolved gas analysis of thiourea-formaldehyde resin (TFR) during pyrolysis and combustion J. Therm. Anal. Calorim, 2011 (in press).

  20. Gibson SL, Baranauskas V, Riffle JS, Sorathia U. Cresol novolac–epoxy networks: properties and processability. Polym. 2002;43(26):7389–98.

    Article  Google Scholar 

  21. Ahamad T, Alshehri S.M, Thermal, microbial, and corrosion resistant metal-containing poly(Schiff) epoxy coatings, J Coat Technol Res 2012. (in press). doi:10.1007/s11998-011-9393-3.

  22. Ahamad T, Nishat N. New antimicrobial epoxy-resin-bearing Schiff-base metal complexes. J Appl Polym Sci. 2008;107(4):2280–9.

    Article  CAS  Google Scholar 

  23. Nishat N, Ahmad S, Tansir Ahamad R. Synthesis and characterization of antibacterial polychelates of urea–formaldehyde resin with Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), and Zn(II) metal ions. J Appl Polym Sci. 2006;100:928–36.

    Google Scholar 

  24. Mocanu AM, Odochian L, Apostolescu N, Moldoveanu C. TG–FTIR study on thermal degradation in air of some new diazoaminoderivatives. J Therm Anal Calorim. 2010;100:615–22.

    Article  CAS  Google Scholar 

  25. Tansir A, Kumar V, Nishat N. Synthesis, characterization and antimicrobial activity of transition metal chelated thiourea–formaldehyde resin. Polym Int. 2006;55:1398–406.

    Article  Google Scholar 

  26. Ma SB, Lu J, Gao JS. Study of the low temperature pyrolysis of PVC. Energy Fuel. 2002;16:338–42.

    Article  CAS  Google Scholar 

  27. Hao L, Lizhong Z. Pollution patterns of polycyclic aromatic hydrocarbons in tobacco smoke. J Hazard Mater. 2007;139:93–198.

    Article  Google Scholar 

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Acknowledgements

This work is supported by Deanship of Scientific Research, Research Center, College of Science, King Saud University, Riyadh.

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  1. Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia

    Tansir Ahamad & Saad M. Alshehri

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  1. Tansir Ahamad
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  2. Saad M. Alshehri
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Correspondence to Saad M. Alshehri.

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Ahamad, T., Alshehri, S.M. Thermal degradation and evolved gas analysis of epoxy (DGEBA)/novolac resin blends (ENB) during pyrolysis and combustion. J Therm Anal Calorim 111, 445–451 (2013). https://doi.org/10.1007/s10973-012-2431-2

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  • DOI: https://doi.org/10.1007/s10973-012-2431-2

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