| Título: | Effects of the Thickness of the Heat-Treated Wood Specimen on Water-Soluble Extractives and Mechanical Properties of Merbau Heartwood |
| Autores: |
Hu, Chuanshuang; Dept. of Wood Science & Engineering, Faculty of Forestry, South China Agricultural University Jiang, Guifen; Dept. of Wood Science & Engineering, Faculty of Forestry, South China Agricultural University Zhou, Jianhui; Dept. of Wood Science & Engineering, Faculty of Forestry, South China Agricultural University Xiao, Min; State Key Laboratory of Subtropical Building Science, School of Architecture, South China University of Technology Yi, Zhao; Dept. of Wood Science & Engineering, Faculty of Forestry, South China Agricultural University |
| Fecha: | 2012-11-05 |
| Publicador: | Bioresources |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| Tema: | Heat treatment; Water-soluble extractives; Heartwood; Merbau; Bending strength |
| Descripción: | Merbau wood has a disadvantage in outdoor applications because its water-soluble extractives readily leach out and stain adjacent materials. This study examined the thickness of the heat-treated wood specimen on water-soluble extractives and some mechanical properties. The results show that heat treatment is efficient at removing the water-soluble extractives of merbau heartwood and overcoming the leaching problem. The absorbance of UV light decreased in intensity when the duration of heating was increased from 1 hour to 5 hours. The dominant absorbance peak increased from the surface layer to the core layer. The modulus of elasticity (MOE) and modulus of rupture (MOR) of heat-treated samples showed significant reductions when the heating duration exceeded a certain point. The total loss of mass during heat treatment and water extraction verified that heat treatment removes the water-soluble extractives efficiently. |
| Idioma: | Inglés |