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当前位置: 首页 > 文章 > 高温热处理对木材吸湿性和尺寸稳定性的影响 中南林业科技大学学报 2010,30 (6) 92-96
Position: Home > Articles > The effect of high temperature thermal treatment on moisture Absorption and dimension stability of wood Journal of Central South University of Forestry & Technology 2010,30 (6) 92-96

高温热处理对木材吸湿性和尺寸稳定性的影响

作  者：
李贤军;傅峰;蔡智勇;乔建政;牟群英;刘元;黄泽才
单  位：
中国林科院木材所北京;中南林业科技大学材料科学与工程学院;美国林产品研究所
关键词：
木材科学;杉木木材;高温热处理;吸湿性;木材尺寸稳定
摘  要：
在4个不同温度和时间水平下,对人工林杉木木材进行高温热处理,研究了处理温度和时间对木材吸湿性和尺寸稳定性的影响规律。结果表明:高温热处理可以显著降低木材平衡含水率、吸水率和体积膨胀率,提高尺寸稳定性;随着处理温度的增加和处理时间的延长,杉木平衡含水率、吸水率和体积膨胀率降低;与处理时间相比,处理温度对平衡含水率、吸水率和体积膨胀率的影响程度更大。在本研究范围,与对照材相比,通过高温热处理可以使杉木平衡含水率降低17.73%~66.74%,吸水率降低33.99%~64.00%,体积膨胀率减少36.7%~69.30%。
译  名：
The effect of high temperature thermal treatment on moisture Absorption and dimension stability of wood
作  者：
LI Xian-jun1,FU Feng2,CAI Zhi-yong2,QIAO Jian-zheng1,MOU Qun-ying1,LIU Yuan1,HUANG Zhe-cai1 (1.School of Material Science and Engineering,Central South University of Forestry and Technology,Changsha 410004,Hunan,China;2.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100083,China;3.USDA / Forest Products Laboratory,Madison,USA)
关键词：
wood science;China fir wood;thermal treatment;moisture Absorption;wood dimension stability
摘  要：
The experiment of thermal treatment with high temperature for China fir wood was conducted at 4 varying temperatures and for 4 varying durations,and the effect of treatment temperature and duration time on the moisture Absorption and dimension ability of the wood was investigated in this study.The results show that the thermal treatment could reduce significantly equilibrium moisture content,water Absorption and volume swelling,and improve the dimension stability;the higher the treatment temperature and the longer the treatment time,the lower the amount of equilibrium moisture content,water Absorption,and the volume swelling;Compared with the treatment time,the treatment temperature was a more important factor to affect the moisture Absorption and dimension stability;After thermal treatment,the equilibrium moisture content,water Absorption,and volume swelling could be decreased by about 17.73%～66.74%,33.99%～64.00%,and 36.7%～69.30%,respectively.

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