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| 高温热处理对尾叶桉木材颜色的影响* |
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曹永建,李兴伟,王颂,李怡欣,李万菊
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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
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| 摘要: |
| 热处理可改变木材的颜色，使其由原来的浅色系逐渐过渡到咖啡色乃至深褐色。以尾叶桉
（Eucalyptus urophylla）木材为研究对象，采用完全随机区组设计方法，以 180~220 ℃、处理时间 1~5 h 的
条件对其进行高温热改性处理。结果表明，随着处理时间的延长和处理温度的升高，木材的总体色差 ΔE *
和色相差 ΔH * 逐渐增大，而色饱和度差值 ΔC * 逐渐减小，表明热处理后尾叶桉木材的颜色由原色逐步
过渡到深褐色。双因素方差分析结果表明，在 0.01 水平上，热处理温度和时间均对木材颜色变化有显著
影响，热处理温度对桉树木材颜色变化的影响要比热处理时间更为重要。 |
| 关键词: 热处理 尾叶桉 色饱和度 总体色差 色相差 |
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| Effects of Thermal Treatment on Color in Eucalyptus urophylla Wood |
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Cao Yongjian,Li xingwei,wang song,Li Yixin and Li Wanju
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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 most effective methods to modify wood color, which can
change wood color from original to deeper even puce with an increase of temperature and duration during
thermal treatment process. Eucalyptus urophylla wood was chosen as material treated by the temperature of
180, 190, 200, 210 and 220 ℃ for 1, 2, 3, 4, and 5 hours respectively, according to Random Complete Block
Design method. The range of variance value of ΔE * and ΔH * is increased. However, the range of variance
value of ΔC * is decreased, that indicates that the color of the wood is changed from original to puce. There is a
significant difference at the 0.01 level between color change and treat temperature and duration, respectively. The
temperature of thermal treatment has a more effective than thermal treatment duration. |
| Key words: thermal treatment Eucalyptus urophylla chroma difference color difference hue difference |
