学术
摘 要:
采用人工模拟大气湿度变化环境,对尾巨桉木材进行循环解吸-吸湿处理,并测定木材的弦向胀缩性。结果表明：在解吸过程中,初含水率对尾巨桉木材弦向干缩率影响显著;在吸湿过程中,循环处理次数对尾巨桉木材弦向湿胀率影响显著。循环处理可以使尾巨桉木材弦向胀缩率达到稳定的时间缩短,有利于其尺寸稳定。[著者文摘]
文章出处:
《木材工业》-2007年21卷5期,20 -16-17,20页
栏目信息:
文献标识码:
B
文章编号:
1001-8654（2007）05-0016-02
Effect of Alternate Adsorption-Desorption Treatments on Shrinkage and Bulking Properties of Eucalyptus urophylla × grandis
LI Ben-gui, PENG Wan-xi, QIAO Jian-zhen, ZHANG Zhong-feng, WU Yi-qiang （College of Material Science and Engineering, Central South Forestry Science and Technology University, Changsha 410004, Hunan, China） Abstract： Alternate adsorption-desorption treatments were carried out on Eucalyptus urophylla ）
Abstract:
Alternate adsorption-desorption treatments were carried out on Eucalyptus urophylla × grandis wood through cyclic humidity exposure and recording the real-time tangential shrinkage and bulking properties. The results showed that the initial moisture content had a notable effect on the tangential shrinkage of Eucalyptus urophylla × grandis, while the times of alternate adsorptiondesorption treatments only affected the tangential hulking property. The cyclic humidity treatments also shortened the shrinkage and bulking vibration periods, and thus was helpful in alleviating deformation and keeping dimensional stabilization.[著者文摘]
Key words:
Eucalyptusurophylla × grandis; alternate adsorption-desorption treatments; tangential shrinkage and bulking properties
基金资助:
国家自然科学基金（30671634）;国家教育部留学基金（吴义强）;中南林业科技大学青年科学研究基金重点项目（07012A）和（0429）;中南林业科技大学引进高层次人才科研启动基金（0652）.
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