| 蒸汽爆破开启落叶松木材细胞通道 |
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| 引用本文： | 夏金尉,张耀丽,蔡家斌. 蒸汽爆破开启落叶松木材细胞通道[J]. 福建农业大学学报(自然科学版), 2013, 0(5): 543-547 |
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| 作者姓名： | 夏金尉 张耀丽 蔡家斌 |
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| 作者单位： | [1]南京林业大学材料科学与工程学院,江苏南京210037 [2]苏州市产品质量监督检验所,江苏苏州215132 |
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| 基金项目： | 国家自然科学基金资助项目（31070493）;江苏高校优势学科建设工程资助项目（PAPD）;国家林业局948资助项目（2011-4-12）. |
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| 摘 要： | 采用5种蒸汽爆破处理（压力0.2MPa，爆破重复10次；压力0.3MPa，爆破分别重复5次、10次和15次；压力0.4MPa，爆破重复10次），结果表明：压力0.4MPa、爆破10次处理的木材细胞闭塞纹孔开启程度最大，开启率为38.5％；压力0.3MPa、爆破15次处理的开启率为31.2％；压力0.3MPa、爆破10次处理的开启率为28.5％；压力0.3MPa、爆破5次处理的开启率为18.3％；压力0.2MPa、爆破10次处理的开启率仅为13.9％.落叶松木材具缘纹孔膜塞缘出现不同程度的断裂，闭塞纹孔变成非闭塞纹孔，开启了落叶松木材细胞液体流动通道.
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| 关 键 词： | 蒸汽爆破 闭塞纹孔 细胞通道 开启率 |
Opening cell pathways of larch wood by steam explosion |
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| XIA Jin-wei,ZHANG Yao-li,CAI Jia-bin. Opening cell pathways of larch wood by steam explosion[J]. Journal of Fujian Agricultural University, 2013, 0(5): 543-547 |
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| Authors: | XIA Jin-wei ZHANG Yao-li CAI Jia-bin |
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| Affiliation: | 1.College of Material Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; 2. Suzhou Institute of Supervision and Inspection on Product Quality, Suzhou, Jiangsu 215132, China) |
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| Abstract: | Larch lumber was treated by five different steam explosions such as 0.2 MPa pressure, 10 explosion times; 0.3 MPa pressure, 5, 10 and 15 explosion times; 0.4 MPa pressure, 10 explosion times. The results were as follows： under the treatment of 0.4 MPa, 10 times, opening percentage of aspirated pits in larch was maximum, reached 38.5% ; under the treatments of 0.3 MPa, 15 times, 0.3MPa, 10 times and 0.3 MPa, 5 times, the opening percentages were 31.2%, 28.5% and 18.3%, respectively. The minimum percentage of 13.9% was obtained under the treatment of 0.2 MPa, 10 times. It suggested that membranes were ruptured more or less, de-aspirated pits were achieved and water paths were unlocked by five treatments. |
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| Keywords: | steam explosion aspirated pit cell pathway opening percentage |
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