曹永建,李怡欣,李兴伟,王剑菁,谢桂军,李万菊,王颂
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美高梅,美高梅,美高梅,美高梅,美高梅,美高梅,美高梅
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摘要: |
热处理是显著提高木材尺寸稳定性的重要途径之一。该研究采用完全随机区组设计方法,以
处理温度 180~220 ℃、处理时间 1~5 h 等不同组合条件在真空度为 -0.08 MPa 的密闭容器内对木材进行热
处理,测定了尾叶桉(Eucalyptus urophylla)、尾巨桉(E. urophylla × E. grandis)、巨桉(E. grandis)3 种
木材的体积从全干至全湿过程中的体积变化率。结果表明,尾叶桉、尾巨桉、巨桉 3 种木材的抗湿胀性
能分别提高了 6.60~ 59.27、6.72~ 64.91 和 11.85~ 60.02 个百分点。
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关键词:
热处理;桉树;抗湿胀率
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DOI:
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分类号:
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基金项目:广东省省级科技计划项目“珍贵树种培育创新团队建设”(2016B070701008) |
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Effect of Thermal Treatment on Anti-Swelling Characteristics of Eucalyptus |
CAO Yongjian,LI Yixin,LI Xingwei,WANG Jianjing,XIE Guijun,LI Wanju and WANG Song
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Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry
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Abstract: |
Thermal treatment is one of the high-efficiency methods to improve the dimensional stability of
wood. In this study, Eucalyptus urophylla, E. urophylla × E. grandis and E. grandis were treated at temperatures of
180-220 ℃ for 1-5 h, respectively, then the effect of thermal treatment on the anti-swelling efficiency of wood was
investigated based on wood sample from absolute-dry, air-dry to absolute-wet volumes according to the method of
Random Complete Block Design. The results showed that, under the treatment conditions above mentioned, the anti-
swelling efficiency of E. urophylla, E. urophylla × E. grandis and E. grandis was increased by 6.60-59.27、6.72-
64.91 and 11.85-60.02 percentage point respectively. Thermal treatment has a significant contribution to extend the
utilizable fields of eucalyptus resources.
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Key words:
thermal treatment; Eucalyptus; anti-swelling efficiency
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