EFFECT OF FLAME RETARDANT TREATMENT ON THERMAL BEHAVIOUR OF SOME TROPICAL TIMBERS
Date
2009-11-26
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Department of Chemistry, Nasarawa State University Keffi
Abstract
Some wood species namely Oro, (Nesogrdonia paparcrifera) Agbagun (Distemonantus benthaminaus), Ububa (Khaya iveronsis) Obeche (Triplochiton sceroxylon) and Black/Afara (Terminalia Iveronsis), commonly used for roofing and furniture were impregnated with solution of borax (Na2B407.10H2O) andantimony trioxide (Sb2Of Results obtained showed that ignition time (sec) for antimony trioxide for the different wood species concentration (g/dm3) increased as follows: Obeche 3 7.3-23.6, Oro 10.9-13.6, Black/Afara 6.6-8 A, Agbagun 11.4 -14-4, and Ububa 9.3-12.3 while that of sodium tetra borate for Obeche 36.0-58.0, Oro 16.0-32.0, Black/Afara 20.0-31.0, Agbagun 10.040.0and Ububa 19.0-35.0. ltwas alsoobserved that the flame propagation rate and after glow-time reduced while char formation and ignition time increased drastically.
Description
Keywords
Flame retardant, flammability, timber woods.
Citation
Abdulrahaman, F.W., Mohammed, A.U., Garba, B. 2002. Effect of flame retardant treatment on thermal behaviour of some Fibrous Materials. Nigeria Journal of Renewable Energy, 10(1&2): 93 - 96. Garba, B., Abdulrahaman F. W., Obaseki, M.E. 1996. Effect of some halogenated flame retardants on the characteristics of selected tropical construction materials. International Journal of fire and Materials, 19:191 -195. Cook, W.E., 1974. Where there is fire there is smoke, Chemistry and Industry, Essay Review 52 pp. 39 - 40. Desch, H.E. 1973. Timber with structure properties and utilization, Macmillan Press London, pp. 295 -306. Hancock, R. 1977. How it works: "Encyclpedia of science and Technology" Marshal Cavendish, London 8 pp. 1008 -1009. Eboatu, A.N. and Oloja, D.0.1989. Studies on the thermal properties of polyvinyl chloride polyester alloy. Journal of Applied Polymer Science, 37,2488 -2489. Horrocks, A.R., Price, D., June, M. 1987. Flame Retardants for cellulosic Materials. Chemistry in Britain, pp. 235. Kattab, M. A., Kandil, S.H., Gad, A.M., El-Latif, M. Morsi, S.E. 1992. Fire and Materials, Intern, /. 16(1): Wiley Publishers U.K. Jan March, pp.1-5. Eboatu, A.N., Abdulrahaman, F.W., Garba, B. and Altine M. 1990. Studies on thermal characteristics of some tropical timbers. "Paper presented at the 31fl Annual Conference of Science Association of Nigeria", Kolman F.P., Cote, W.A. Jr. 1969. "Principles of Wood Science and Technology I, Solid Wood" springer-verlag Berlin, pp. 149 - 153. Akure, Nigeria. Eboatu, A.N., Chuke, C., Ndife, U., and Nwadiche, E. 1998. Some factors influence the thermal and flammability characteristics of timbers, Journal of Chemical Society of Nigeria, 23:41-46. Lyons, J.W. 1970. The Chemistry and uses of Fire Retardants. Wiley Inter-Science, New York. P.81. Garba, B. 1988. "Effect of flame retardant treatment on the thermal behavior of some Nigeria timbers" Unpublished B.Sc. project work submitted to Chemistry Department, UsmanDanfodiyo University, Sokoto. pp5-16. Mommoh, M., Eboatu, A.N., Kolawole, F.G. 1998. On Wood Conservation to Energy III. Thermal investigation of wood pyrolysis. Nigeria Journal of Renezvable Energy, 6: 84- 86. Obaseki, M.E. 1993. Studies of Flame Retardancy property of some chemical compounds on selected construction materials. M.Sc. Garba B. 1992. The possible use of superphosphate fertilizer as flame 99 Effect of flame retardant treatment on thermal behaviour Of some tropical timbers thesis, Department of Chemistry, Usman Danfodiyo University, Sokoto. Panshin, A.J., Vander lee, J., Carle D.Z. 1980. Textbook of Wood Technology Structure, Identification, properties and uses of the commercial woods of the United States and Canada. 4,h edition published by McGraw Hill, Inc. pp. 157-242. Shet, R.T., Yabani, A.M. 1981. Reaction of Formaldehyde and Demethylo, Urea with Unmodified and modified cellulose. Textile Research Journal; 51 (10): 621 - 622. Eboatu, A.N., Rades, J. and Shehu, D. 1992. Flame Retardant Treatment of some Roofing Thatch. Nigeria Journal of Renewable Energy, 3 (1&2): 91 - 94. Wyle, 1971. Flame Retardancy, in Encyclopedia of Chemical Technology, Wiley Inter- Science, Vol. 10, pp, 349. William Yardley, November 15‘h, 2008. "In Fighting Wildfires, Concerns about Chemicals" The NewYork Times. Retrieved on 26,h November, 2008. 100