The Thermal Conductivity of Fir and Beech Wood Heat Treated at 170, 180, 190, 200, and 212°C
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Heat treatment changes the chemical, physical, and mechanical properties of wood. The properties of heat-treated wood have been researched considerably, but the thermal conductivity of heat-treated wood in various conditions has not been reported. In this study, the thermal conductivity of heat-treated fir and beech wood at temperatures 170, 180, 190, and 212 degrees C for 2 h with ThermoWood method were investigated. The results were compared with industrially kiln-dried reference samples. The results show that heat treatment caused an important reduction on thermal conductivity of wood, the extend of which is depend upon temperature and wood species. Considering all heat treating temperatures, generally by increasing heat treatment temperature the thermal conductivity of wood decreased. The effect of heat treating temperature on thermal conductivity was identical for fir and beech wood. The highest decrease in thermal conductivity occurred at 212 degrees C for both wood species. When compared with untreated wood, the decreases in thermal conductivity at 170 degrees C, and 212 degrees C for fir and beech wood were 2%, 9 and 2%, 16% respectively. Depending on heat treatment temperature, the decrease found out beech in high temperature is higher than that of fir. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 2473-2480, 2011
Açıklama
Anahtar Kelimeler
thermal properties, modification, heterogeneous polymer, heat treatment, wood
Kaynak
Journal of Applied Polymer Science
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
121
Sayı
4
