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IMPACT OF HEAT TREATMENT ON THE SURFACE COLOR AND GLOSSINESS OF YOUNG EUCALYPTUS WOOD

文献类型： 外文期刊

作者： Lu, Cuixiang 1 ; Liu, Yuan 1 ; Jiang, Huichuan 2 ; Lu, Quanji 2 ;

作者机构： 1.Guangxi Forestry Res Inst, Guangxi Key Lab Super Timber Trees Resource Culti, Nanning 530002, Peoples R China

2.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou 571101, Hainan, Peoples R China

关键词： Heat treatment; young eucalyptus; surface color; glossiness

期刊名称：WOOD RESEARCH （ 影响因子：1.254； 五年影响因子：1.18 ）

ISSN： 1336-4561

年卷期： 2022 年 67 卷 3 期

页码：

收录情况： SCI

摘要： The study analyzed the impact of heat treatment conditions (temperature and duration) on the surface color and glossiness of young eucalyptus wood. The young eucalyptus wood samples were treated at different treatment temperatures (165 degrees C, 185 degrees C, 205 degrees C) and duration (2 h, 3 h, 4 h). The color of the young eucalyptus wood was determined using CIE L*a*b* system and the gloss was measured with glossmeter at 20 degrees, 60 degrees, and 85 degrees incident angle before and after the heat treatment. The total color difference (.E*), lightness (L*), red-green index (a*), and yellow-blue index (b*), were investigated at different treatment conditions. The values of L* and b* decrease continuously with the increasing temperature and duration. The results of analysis of variance (two-way ANOVA) indicate that the heat treatment temperature has a significant effect on the colorimetric properties of the heat-treated young eucalyptus wood. The gloss decreased after the heat treatment for both perpendicular and parallel directions. ANOVA analysis showed that the treatment temperature duration have a significant effect on the parallel glossiness of 85 degrees(p< 0.05). These are probably due to differences in surface roughness between untreated and heat-treated wood. To achieve the desired color like teak wood, the preferred temperature is no more than 185 degrees C.

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