International Journal of Agricultural Research1816-48972152-2553Academic Journals Inc.10.3923/ijar.2008.331.339SulaimanO. HashimR. KumarR.N. TamyezP. MurphyR.J. AliZ. 5200835The aim of the study is to investigate the effect of incorporation
of flame retardants chemical on some of the properties of phenol formaldehyde
medium density fiberboard. Flame retardant chemicals that were used include
sodium aluminate, zinc borate and aluminum trihydrate. Four concentrations
levels, 10, 15, 20 and 30% of the flame retardants and 15% phenol formaldehyde
resin based on oven dry weight were used to manufacture the experimental
panels. The effect on physical and mechanical properties were then evaluated.
Flame retardant and thermal properties of the panels were also investigated
using a cabinet test method, thermogravimetry analysis and differential
scanning calorimetry. Thickness swell decreased as the amount of the flame
retardants increased while the mechanical properties decreased as the
amount of flame retardants increased except for the modulus of rupture.
The mechanical properties reduced considerably after cyclic tests. The
boards incorporated with aluminum trihydrate gave an overall best performance
in both physical and mechanical properties followed by sodium aluminate
and zinc borate. The study indicated flame retardant MDF incorporated
with sodium aluminate as the most effective flame retardant.]]>Abdul Rashid, A.M. and R.J. Murphy,19935322336ASTM D 1360-79, 19791979Ayrilmis, N., Z. Candan and R. White, 200765449458Barnes, H.M. and D. Farrell, 1978283637Berndt, H., A.P. Schniewind and J.K. Woo, 199044439443Chih, P.C. and C.H. Szu, 200386201202Garba, B., 199964517522Gao, M., C.Y. Sun and C.X. Wang, 200685765769Hashim, R., L.S. How, R.N. Kumar and O. Sulaiman,20059618261831International Standard ISO/DIS 16978, 20022002International Standard ISO/DIS 16983, 20022002International Standard ISO/DIS16984, 20022002Jian, L., L. Bin, Z. Xiucheng and S. Renzhou, 200172493498Kozlowski, R, B. Mieleniak, M. Helwig and A. Przepiera, 199964523528Laufenberg, T., N. Ayrilmis and R. White, 200664137143LeVan, S.L. and J.E. Winandy, 199022113131Misra, C., 1986ACS Monograph, 184,pp: 151-155pp: 151-155Sain, M., S. H. Park, F. Suhara and S. Law, 200483363367Troitzsch, J., 19981669Wang, Q., J. Li and J.E. Winandy, 200438375389Woo, J.K. and Schniewind, 198741305314