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http://dx.doi.org/10.5658/WOOD.2012.40.1.10

Analysis of Factors Affecting the Hygroscopic Performance of Thermally Treated Pinus koraiensis Wood  

Chang, Yoon-Seong (Dept. Forest Science, CALS, Seoul National University)
Han, Yeon-Jung (Dept. Forest Science, CALS, Seoul National University)
Eom, Chang-Deuk (Div. Wood Engineering, Dept. Forest Resources Utilization, Korea Forest Research Institute)
Park, Joo-Saeng (Div. Wood Engineering, Dept. Forest Resources Utilization, Korea Forest Research Institute)
Park, Moon-Jae (Div. Wood Engineering, Dept. Forest Resources Utilization, Korea Forest Research Institute)
Choi, In-Gyu (Dept. Forest Science, CALS, Seoul National University)
Yeo, Hwan-Myeong (Dept. Forest Science, CALS, Seoul National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.40, no.1, 2012 , pp. 10-18 More about this Journal
Abstract
A high airtightness is required for the residential spaces constructed recently to save cooling and heating energy through improving insulation performance. Because the chances to release steam formed by human activity in building and inflow of water vapor in outdoor air to residential space are reduced, the natural humidity control performance of interior materials has become more important. In this study, hygroscopic performance of thermo-physically treated wood (Pinus koraiensis) was estimated. At various relative humidity condition, the water vapor adsorption and desorption rates of wooden materials were measured as well as equilibrium moisture content. Effects of roughness and surface microstructure as physical factors and functional groups as chemical factors on the hygroscopicity were analyzed. It is expected that the results from this study and further study of measuring moisture generation in residential spaces could contribute to install a system for evaluating the hygrothermal performance of wooden building.
Keywords
hygroscopic performance; equilibrium moisture content; adsorption; desorption; heat treatment; roughness; FE-SEM; FT-IR;
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