| 落叶松木材的高强度微波辐照法改性 |
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| 引用本文： | LIU Hong-Hai WANG Qing-Wen YANG Lin JIANG Tao CAI Ying-Chun. 落叶松木材的高强度微波辐照法改性[J]. 林业研究, 2005, 16(3): 237-240. DOI: 10.1007/BF02856823 |
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| 作者姓名： | LIU Hong-Hai WANG Qing-Wen YANG Lin JIANG Tao CAI Ying-Chun |
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| 作者单位： | [1]MOE Key Laboratory of Bio-based Material Science and technology, Northeast Forest University Harbin 150040 |
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| 基金项目： | This paper was supported by Science Fund for Distinguished Young Scholars, Heilongjiang Province （No. JC04-01） |
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| 摘 要： | The larch wood was treated by microwave irradiation under different radiant intensity and treating duration. The microwave-treated wood specimens together with the un-treated for comparison were impregnated by water in pressure vessel and then tested for permeability, mechanical properties and microstructure change by SEM to study the modification performance of microwave treatment on larch wood. The results showed that under suitable conditions of microwave treatment the permeability of larch wood was improved without noticeable decreasing of the modulus of rupture （MOR） and the modulus of elasticity （MOE）. The radial parenchyma and some pit membrane were ruptured, and tiny cracks were formed in the cell walls. The formation of tiny cracks in the cell walls serves as man-made channels of gas and liquid and this contribute to improve the permeability of the wood.
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| 关 键 词： | 落叶松 木材 微波放射 亮度 渗透性 |
| 文章编号： | 1007-662X（2005）03-0237-04 |
| 收稿时间： | 2005-06-11 |
| 修稿时间： | 2005-07-22 |
Modification of larch wood by intensive microwave irradiation |
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| Liu Hong-Hai,Wang Qing-Wen,Yang Lin,Jiang Tao,Cai Ying-Chun. Modification of larch wood by intensive microwave irradiation[J]. Journal of Forestry Research, 2005, 16(3): 237-240. DOI: 10.1007/BF02856823 |
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| Authors: | Liu Hong-Hai Wang Qing-Wen Yang Lin Jiang Tao Cai Ying-Chun |
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| Affiliation: | (1) MOE Key Laboratory of Bio-based Material Science and technology, Northeast Forest University, 150040 Harbin |
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| Abstract: | The larch wood was treated by microwave irradiation under different radiant intensity and treating duration. The micro- wave-treated wood specimens together with the un-treated for comparison were impregnated by water in pressure vessel and then tested for permeability, mechanical properties and microstructure change by SEM to study the modification performance of microwave treatment on larch wood. The results showed that under suitable conditions of microwave treatment the permeability of larch wood was improved without noticeable decreasing of the modulus of rupture (MOR) and the modulus of elasticity (MOE). The radial parenchyma and some pit mem- brane were ruptured, and tiny cracks were formed in the cell walls. The formation of tiny cracks in the cell walls serves as man-made chan- nels of gas and liquid and this contribute to improve the permeability of the wood. |
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| Keywords: | Larch wood Modification Microwave irradiation Permeability |
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