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Investigation on the Dimensional Stability of Acetylated Larch (Larix kaempferi) Small Square  

Lee, Won-Hee (Department of Wood Science and Technology, Kyungpook National University)
Kang, Ho-Yang (Department of Bio-based Materials, Chungnam National University)
Publication Information
Journal of the Korea Furniture Society / v.27, no.4, 2016 , pp. 302-308 More about this Journal
Abstract
It has been known that acetylation improves the dimensional stability of wood. Liquid phase acetylation is more popular than gas-phase acetylation for the effectiveness of weight gain of wood. In this study the specimens of domestic red and Korean pines are acetylated in liquid phase and their physical properties, such as density, bending strength, anti-hygroscopicity etc., are analyzed. Acetylation increases the average weights and volume of larch specimens by 11.4% and 3.4%, respectively, and their average oven-dry densities are increased by $0.03g/cm^3$. Acetylation does not influence on Modulus of Rupture (MOR) and Modulus of Elasticity (MOE). The average Percentage Reduction in Hygroscopicity (PRH) and average Percentage Reduction in Water soaking (PRW) of larch specimens are respectively 20.2% and 20.8%. Thus it can be concluded that acetylation improves the dimensional stability of larch specimens.
Keywords
Acetylation; Dimensional stability; Weight Percentage Gain; Hygroscopicity; Larix kaempferi;
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Times Cited By KSCI : 2  (Citation Analysis)
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