Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood
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 tre...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2013-02-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://www.ncsu.edu/bioresources/BioRes_08/BioRes_08_1_0603_b_Hu_JZXY_Size_Heat_Treat_Extraction_Property_Heartwood_3395.pdf |
| _version_ | 1811310432031342592 |
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| author | Min Xiao Zhao Yi Jianhui Zhou Guifen Jiang Chuanshuang Hu |
| author_facet | Min Xiao Zhao Yi Jianhui Zhou Guifen Jiang Chuanshuang Hu |
| author_sort | Min Xiao |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T09:58:39Z |
| format | Article |
| id | doaj.art-8340527424774295b383b768780ff152 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-04-13T09:58:39Z |
| publishDate | 2013-02-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-8340527424774295b383b768780ff1522022-12-22T02:51:17ZengNorth Carolina State UniversityBioResources1930-21262013-02-0181603611Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwoodMin XiaoZhao YiJianhui ZhouGuifen JiangChuanshuang HuMerbau 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.http://www.ncsu.edu/bioresources/BioRes_08/BioRes_08_1_0603_b_Hu_JZXY_Size_Heat_Treat_Extraction_Property_Heartwood_3395.pdfHeat treatmentWater-soluble extractivesHeartwoodMerbauBending strength |
| spellingShingle | Min Xiao Zhao Yi Jianhui Zhou Guifen Jiang Chuanshuang Hu Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood BioResources Heat treatment Water-soluble extractives Heartwood Merbau Bending strength |
| title | Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood |
| title_full | Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood |
| title_fullStr | Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood |
| title_full_unstemmed | Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood |
| title_short | Effects of the thickness of the heat-treated wood specimen on water-soluble extractives and mechanical properties of merbau heartwood |
| title_sort | effects of the thickness of the heat treated wood specimen on water soluble extractives and mechanical properties of merbau heartwood |
| topic | Heat treatment Water-soluble extractives Heartwood Merbau Bending strength |
| url | http://www.ncsu.edu/bioresources/BioRes_08/BioRes_08_1_0603_b_Hu_JZXY_Size_Heat_Treat_Extraction_Property_Heartwood_3395.pdf |
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