Wood protection and modification is an effective strategy to improve its engineering properties

Document Type : Scientific Letters

Authors

1 Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

2 Senior Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

Abstract

Wood is a natural bio-polymer. The unique advantages of this engineering material including its widespread availability, sustainable renewal, favorable ecological assessment, ease of processing, lightness, reusability, and environmental compatibility have not been hidden from the eyes of scientists and engineers and have made it one of the most popular materials in the construction of structures, such as houses, bridges, docks, furniture, etc. However, the natural nature of this engineering material imposes limits on its properties (moisture absorption, dimensional changes, biological deterioration, weathering and ultraviolet degradation, etc.) and application. Therefore, this natural material may need to be transformed in order to acquire the desired functionality. Accordingly, wood modification can be an effective method to increase the strength and durability of this engineering material and results in a wide range of wood products. Therefore, nowadays, with the development of technology, various methods of wood modification have been invented to improve its engineering properties, and consequently wood has considerable importance for engineers, architects and designers of structures. The department of wood and paper science of research institute of forests and rangelands is one of the oldest and most experienced custodians in field of wood and its products. The wide research has been carried out by this group in various fields of wood protection and modification. This research team has achieved considerable results by applying various methods of wood protection and modification as well as different preservatives, whose results are presented in scientific journals, internal and international conferences and seminars. The results of this research can be used as effective solutions to increase the strength and durability of wood and its products.

Keywords

References

- حاجی‌­حسنی، ر. و محبی، ب.، 1387. تاثیر استیله کردن الیاف صنوبر بر پایداری ابعادی تخته‌­فیبر با دانسیته متوسط (MDF). پژوهش و سازندگی، 21(2): 53-46.
- حاجی­‌حسنی، ر. و همکاران، 1396. ارزیابی ویژگی­‌های فیزیکی و مکانیکی چوب اصلاح شده با فرایند بخارگرمایی. تحقیقات علوم چوب و کاغذ ایران، 32(1): 12-1.
- حاجی­‌حسنی، ر. و زمانی، س.م، 1393. تأثیر تیمار شیمیایی الیاف در جلوگیری از تخریب بیولوژیکی تخته‌­فیبر با دانسیته متوسط (MDF). تحقیقات علوم چوب و کاغذ ایران، 29(3): 398-390.
- Gong, M.,  Lamason, C. and Li, L., 2010. Interactive Effect of Surface Densification and Post-Heat- Treatment on Aspen Wood. Journal of Materials Processing Technology, 210: 293–296.
- Larsson­­, P.B., 1998. Acetylation of solid wood: Ph.D. thesis; Chalmers University of Technology; Göteborg; Sweden.
- Militz, H., 2002. Thermal treatment of wood: European processes and their background; The International Research Group on Wood Preservation; Document No. IRG/WP 02-40241.
- Mohebby, B., 2003. Biological attack of acetylated wood, Ph.D. Thesis; Göttingen University; Göttingen: p. 147.
- Navi, P., and Sandberg, D., 2011. Thermo-hydro-mechanical processing of wood, Engineering Sciences, Taylor & Francis Group, LLC, Swiss, p. 360.
- Rowell, R.M., 1975. Chemical modification of wood: Advantages and disadvantages; proceedings Am. Wood preservers Association:1-10.
- Stamm, A.J., 1964. Wood and Cellulose Science, New York: Ronald Press, p. 549.                   
- Unbehaun, H., Dittler, B., Kühne,G. and Wagenführ, A., 2000. Investigation into the biotechnological modification of wood and its application in the wood-based material industry.ActaBiotechnol.; 20 (34): 305-312.
Iran Nature
Volume 3, Issue 1 - Serial Number 8
March and April 2018
Pages 32-39

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