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| 热处理对桉树木材抗湿胀性能的影响 |
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曹永建,李怡欣,李兴伟,王剑菁,谢桂军,李万菊,王颂
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广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院
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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。 |
| 关键词: 热处理 桉树 抗湿胀率 |
| DOI： |
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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 |
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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. |
| Key words: thermal treatment Eucalyptus anti-swelling efficiency |
