The thermal degradation in air of flexible PVC treated with various metal chelates containing Fe, Co, Ni, Cu, or Zn combined with two compounds Al(OH)3 and Mg(OH)2, have been studied by differential thermal analysis and thermogravimetry from ambient temperature to 1023 K. The kinetic parameters were obtained using the equation of Kissinger. Flexible PVC treated with flame-retardants showed a high limiting oxygen index, char yield and a low smoke density rating, maximum smoke density, which indicated that the flame retardance of the treated PVC was improved.
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References
1.
1. Hirschler, M.M. (1998). Fire Performance of Poly (Vinyl Chloride) Updated and Recent Developments , Flame Retardants, 98: 103-103 .
2.
2. Hirschler, M.M. (1982). Recent Developments in Flame-Retardant Mechanisms, Development in Polymer Stabilisation, Vol. 5, p. 107-107, Applied Science Publ, London .
3.
3. Tong, N. and Shaoyun, G. (2000). Flame-Retardant and Smoke-Suppression Properties of Zinc Borate and Aluminum Trihydrate-Filled Rigid PVC , J. Appl. Polym. Sci., 77: 3119-3119 .
4.
4. Hornsby, P.R. and Watson. C.L. (1990). A Study of the Mechanism of Flame Retardance and Smoke Suppression in Polymers Filled with Magnesium Hydroxide , Polymer Degradation and Stability, 30: 73-73 .
5.
5. Jha, N.K., Misra, A.C. and Bajaj, P. (1984). Flame-Retardant Additives for Polypropylene , J. Macromol Sci., Rev. Macromol. Chem. Phys., C24: 1: 69-69 .
6.
6. Pearce, E.M. (1986). Flame Retardants for Polymer Systems , Pure & Appl. Chem., 58: 925-925 .
7.
7. Shigco, M., Takeshi, I. and Hitoshi, A. (1980). Fire-Retarding Polypropylene with Magnesium Hydroxide , J. Appl. Polym. Sci., 25: 415-415 .
8.
8. Lum, R.M. (1977). Antimony Oxide-PVC Synergism: Laser Pyrolysis Study of the Interaction Mechanism , J. Polym. Sci. Polym. Chem. Ed., 15(2): 489-489 .
9.
9. Kroenke, W.J. (1986). Low-melting Sulfate Glasses and Glass-Ceramics and Their Utility as Fire and Smoke Retarder Additives for PVC . J. Mater. Sci., 21: 1123-1123 .
10.
10. Reddy, P.V., Sridhar, S. and Ratra, M.C. (1992). Flame-retardant PVC Compound for Cable Applications , J. Appl. Polym. Sci., 46(3): 483-483 .
11.
11. Gonzalez, L.A. and Mendiola, A.J. (1981). Effect of Various Metal Oxides on the Combustion of Soft PVC , Rev. Plast. Mod., 42(31): 58-58 .
12.
12. Carty, P., Graut, J. and Metcalfe, E. (1996). Flame Retardancy and Smoke Suppression Studies on Ferrocene Derivatives in PVC , Appl. Org. Chem., 10(2): 101-101 .
13.
13. Wescott, L.D. (1985). Mechanistic Studies on the Role of Copper and Molybdenum Containing Species as Flame and Smoke Suppressants for PVC , J. Anal. Appl. Pyrolysis., 8: 163-163 .
14.
14. Cullis, C.F., Gad, A.M.M. and Hirschler, M.M. (1984). Metal Chelates as Flame Retardants and Smoke Suppressants for Thermoplastic Polymers , Eur. Polym. J., 20: 710-710 .
15.
15. Cullis, C.F. and Hirschler, M.M. (1984). Char Formation from Polyolefins , Eur. Polym. J., 20: 53-53 .
17. Xu, J.Z., Gao, M. and Guo, H.Z. (2002). Study on the Thermal Degradation of Cellulosic Fibers Treated with Flame Retardants , Journal of Fire Science, 20: 227-227 .
18.
18. Hirschler, M.M. (1986). Thermal Decomposition (STA and DSC) of PVC Compounds Under a Variety of Atmospheres and Heating Rates , Eur. Polym. J., 20: 710-710 .
19.
19. Brauman, S.K., Fishman, N. and Brolly, A.S. (1976). Smoke Generation from the Burning of some Polymeric Materials , J. Fire Retardant Chem., 3: 66-66 .
20.
20. Kissinger, H.E. (1956). Variation of Peak Temperature with Heating Rate in Differential Thermal Analysis , J. Research Natl. Bur. Standards, 57: 217-217 .
21.
21. Cullis, C.F. and Hirschler, M.M. (1983). The Significance of Thermoanalytical Measurements in the Assessment of Polymer Flammability , Polymer, 24: 834-834 .
22.
22. Brauman, S.K. (1976). Fire Retardance of Polymers Containing Antimony Oxide-halogen , J. Fire Retardant Chem., 3: 117-117 .
23.
23. Knuemann, R. and Bockhorn, H. (1994). Low-temperature Pyrolysis as a Potential Solution for the Chemical Separation of Plastics Mixtures , Combust. Sci. Technol., 101: 285-285 .
