Decay resistance of propionylated Iranian beech wood against white rot  fungus (Trametes versicolor)

Hosseini, Sayed Mohammad; Mastari Frahani, Mohammad Reza

doi:10.22092/ijwpr.2012.117070

Document Type : Research Paper

Authors

¹ MSc. student, Gorgan University of Agriculture and Natural Resources, Gorgan, Golestan

² Assistant Professor, Department of Wood and Paper Engineering, Gorgan University of Agriculture and Natural Resources, Gorgan, Golestan

https://doi.org/10.22092/ijwpr.2012.117070

Abstract

Decay resistance of propionic anhydride modified Iranian beech wood against the white rot fungus (Trametes versicolor) was investigated. Iranian beech (Fagus orientalis), which is a nondurable wood was modified by propionic anhydride at different temperatures, concentrations and times without using any catalyst. Propionylation was determined by calculating volume change (VC) and weight percentage gain (WPG) after solvent extraction using acetone. Different WPGs were obtained applying different treatment conditions. VC increased linearly with increasing WPG. The decay resistance of the propionylated wood against Trametes versicolor was determined according to ASTM D1413 standard test methods. Weight loss (WL) due to decay was reduced significantly when WPG increased. WPG of about 17 % was found to be the threshold level of the propionylated wood.

Keywords

References

Bekers, E.P.J., Milits, H. and Stevens, M. 1994. Resistance of acetylated wood to basidiomycetes, soft rot and blue stain. International Group on Wood Preservation. Document no. IRG/WP 40021.

-Hill, C.A.S. 2006. Wood modification: thermal, chemical and other processes. Whiley, London.

-Hill, C.A.S., Papadopoulos, A.N. and Payane, D. 2004. Chemical modification employed as a mean of probing the cell wall micropore of pine sapwood. Wood Science and Technology. 37 (6):475-488.

-Hill, C.A.S., Hale, M.D., Farahani, M.R.M., Foster, S., Sutties, ED., Jones, D. and Papadopoulos, A.N. 2003. Decay resistance of anhydride modified wood. European Conference on Wood Modification.

-Jones, D. 2000. The potential for modified materials in the panel products industry_ a thematic network approach. Proceeding of the fifth European Panel Products Symposium. 184-197.

-Li, J.Z. Furuno, T. and Katoh, S. 2000. Chemical modification of wood without using solvent and cataslyt. Journal of Wood Science. 46 (3): 215-221.

-Milits, H., Son, D.W., Gomez-Hemadez, L. and Sierra-Alvarez, R. 2003. The effect of fungal degradation on the chemical composition of acetylated beech wood. International Group on Wood Preservation. Document no. IRG/WP 40267.

-Takahashi, M., Imamura, Y. and Tanahashi, M. 1989. Effect of acetylation on decay resistance of wood against brown rot, white rot and soft rot fungi. International Group on Wood Preservation. Document no. IRG/WP 3540.

Iranian Journal of Wood and Paper Science Research

Decay resistance of propionylated Iranian beech wood against white rot fungus (Trametes versicolor)

References

References

Volume 27, Issue 2 - Serial Number 39
June 2012
Pages 319-325

Decay resistance of propionylated Iranian beech wood against white rot fungus (Trametes versicolor)

References

References

Volume 27, Issue 2 - Serial Number 39June 2012Pages 319-325

Volume 27, Issue 2 - Serial Number 39
June 2012
Pages 319-325