Natural Weathering of Wood Heat-Treated at 220℃
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초록
When wood is exposed to natural weathering and UV radiation discoloration progresses. The color variation of heat-treated wood was investigated. Four domestic species were selected and heat-treated at 220℃ and naturally weathered for 42 days. Their colors were measured with a portable colorimeter. The color variations were different between species. The Korean red pine specimens were highly discolored by the natural weathering even though they were heat-treated. In contrast to Korean red pine, Korean pine is less discolored. The maximum color difference of larch was lower than Korean red pine. All specimens of birch exceeded the color difference criterion of 15 after 25 hours with the maximum of 28.
Abstract
When wood is exposed to natural weathering and UV radiation discoloration progresses. The color variation of heat-treated wood was investigated. Four domestic species were selected and heat-treated at 220℃ and naturally weathered for 42 days. Their colors were measured with a portable colorimeter. The color variations were different between species. The Korean red pine specimens were highly discolored by the natural weathering even though they were heat-treated. In contrast to Korean red pine, Korean pine is less discolored. The maximum color difference of larch was lower than Korean red pine. All specimens of birch exceeded the color difference criterion of 15 after 25 hours with the maximum of 28.
참고문헌 (8)
- Feist, William C, "Moisture sorption and accelerated weathering of acetylated and methacrylated aspen", Wood Fiber Sci, 23(1), pp.128~136 (1991)
- Hon, D. N.-S, "Weathering characteristics of hardwood surfaces", Wood Sci. Technol, 20, pp.169~183 (1986)
- Kalnins, M. A, "Increase in wettability of wood with weathering", Forest Products J, 43(2), pp.55~57 (1993)
- Kang, H. Y, "Development of Color Changing Technology for Domestic Softwood", J. Korea Furnit. Soc, 19(3), pp.156~162 (2008)
- Kang, H. Y, "Hygroscopicity and Surface Hardness of Domestic Wood heat-Treated at 220℃", J. Korea Furnit. Soc, 19(4), pp.229~234 (2008)
- ang, H. Y, "Weathering of Prunus sargentii specimens modified with acetic anhydride and formaldehyde vapor", MokJaeKonhak, 31(5), pp.57~64 (2003)
- Mitsui, K, "Changes in the properties of light-irradiated wood with heat treatment", Holzforschung, 55(6), pp.601~605 (2001)
- Yata S, "Histological changes of softwood surfaces during outdoor weathering", Mokuzai Gakkaishi, 41(11), pp.1035~1042 (1995)