Investigation on the effect of acetylation and the resin type on the biological resistance of aspen tree layered particleboard

Dost Hosseini, Kazem; Ghorbani Kobandeh, Maryam; Mohammad Ali Bighi, Samira; Karimi, Alinaghi

doi:10.22092/ijwpr.2011.117202

Document Type : Research Paper

Authors

¹ Professor, wood and paper science & technology, natural resources faculty, university of Tehran, Iran

² Assistant professor, Faculty of Natural Resources,Sari agricultural sciences and natural resources university

³ M.Sc., wood and paper science & technology, natural resources faculty, university of Tehran, Iran.

⁴ Associate Prof., wood and paper science & technology, natural resources faculty, university of Tehran, Iran

https://doi.org/10.22092/ijwpr.2011.117202

Abstract

This research was conducted to evaluate the effects of acetylation and the resin type on three layered populus particleboard against white-rot fungus, Trametes versicolor. Populus particles were acetylated at three levels of acetyl content (WPG of 0, 8.39% and 17.27%). In manufacturing of single and three layered boards with acetylated particles two type of resin, urea formaldehyde and isocyanate( as adhesives) were employed.

The results indicated positive role of acetylation in reducing decay rate. Weight loss of boards made from isocyanate was less than the boards containing urea formaldehyde resin. Also, three layered boards showed higher resistance against the fungus compared with single layered boards.

Keywords

Main Subjects

Biology and Wood Protection

References

-دوست حسینی، ک، ١۳۸۰، فناوری تولید و کاربرد صفحات فشرده چوبی، انتشارات دانشگاه تهران، ۶۴۸ص.ژ

- قربانیکوکنده، م، 1386، تأثیر استیله کردن خردهچوب راش بر انتقال گرما در سیکل پرس و خواص کاربردی تختهخردهچوب با تأکید بر مقاومت بیولوژیک، رساله دکتری، دانشگاه تهران، ۱۱۰ ص.

-Cardis, W.F., Hale, M.D., 2003. The resistance of wood chemically modified with isocyanate: the role of moisture content in decay suppression. International Biodeterioration & Biodegradation 52(2003): 215-221pp.

- Garcia, P. , 2002. Three-dimensional heat and mass transfer during oriented strandboard hot-pressing. Ph. D. Dissertation. University of British Columbia,, Vancouver, BC. 254 p.

-. Hill, C.A.S., 2002. How does the Chemical Modification of Wood Provide Protection Against Decay Fungi? School of Agricultural and ForestSciencesUniversity of WalesBangor.

-. Imamura, Y., Subiyanto, B., Rowell, R.M. & Nilsson, T., 1989. Dimensional Stability and Biological Resistance of Particleboard from Acetylated Albizzia Wood Particles. WOOD RESEARCH , No. 76: 49-58pp.

- Militz, H. & E. P. J. Beckers, 1994. Process for acetylation solid wood. European patent Application 85850268. 5.

-. Mohebby, B. & H. Militz, 2002. Soft rot decay in acetylated wood: Microcalorimetry: Chemical and anatomical changes in decayed wood: Int. Research group on wood preservation, document No. IRG/WP 02-40231.

- Nishimoto, K. & Y. Imamura, 1985. Physical and protective properties of particleboards made of mixtures of acetylated and normal chips. Mokuzai kogyo 40, 414-418pp.

- Papadopoulos, A.N., 2006. Decay resistance of acetylated OSB in ground stake test. Holz Roh- Werkst. 64(3): 245-246 pp.

- Papadopoulos, A.N., 2009. Decay resistance in ground stake-test of acetylated OSB after six years of testing. European Journal of Wood and Wood Products. 67 (3): 365-366 pp.

- Rowell, R.M., Cleary Brenda A., Rowell Jeffrey S., Clemons Craig & Young Raymond. A.; 1993: Results of chemical modification of lignocellulosic fibers for use in composites. Forest Products Society; 1993: 121-127pp.

- Rowell, R.M., 2006. Acetylation of wood, Forest Products Journal. Vol 56, No 9: 1-12pp.

- Sander, C. , E. P. J. Beckers, H. Militz & W. Vanveenendaal, 2003. Analysis of acetylated wood by electron microscopy: Wood Science & Technology: 37:39-46pp.

- Takahashi, M., 1996. Biological properties of chemically modified wood. In: D.N.S. Hon ( ed. ) Chemical modification of lignocellulosic materials; Marcel Dekker, Inc. ; New York, Basel, Hong Kong: 339-369pp.

- Tarkow, H., 1945. Decay resistance of acetylated balsa. USDA Forest Service, Forest products laboratory, Madison, WI, 4p.

- Zabel, R. a. & J. J, Morrell, 1992. Wood microbiology, Decay and its prevention. Academic Press, Inc. ;New York; 476 p.

Iranian Journal of Wood and Paper Science Research

Investigation on the effect of acetylation and the resin type on the biological resistance of aspen tree layered particleboard

References

References

Volume 26, Issue 3 - Serial Number 36
September 2011
Pages 466-476

Investigation on the effect of acetylation and the resin type on the biological resistance of aspen tree layered particleboard

References

References

Volume 26, Issue 3 - Serial Number 36September 2011Pages 466-476

Volume 26, Issue 3 - Serial Number 36
September 2011
Pages 466-476