| 甘油预处理对热处理材尺寸稳定性的影响 |
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| 引用本文： | 党娅萍,闫丽,雷亚芳.甘油预处理对热处理材尺寸稳定性的影响[J].木材工业,2012,26(3):55-58. |
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| 作者姓名： | 党娅萍 闫丽 雷亚芳 |
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| 作者单位： | 西北农林科技大学机械与电子工程学院,陕西杨陵,712100 |
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| 基金项目： | 西北农林科技大学博士科研启动基金 |
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| 摘 要： | 为提高木材的尺寸稳定性,采用甘油水溶液对毛白杨和云杉进行预处理,然后再进行热处理.通过检测处理材的密度、平衡含水率、吸水和吸湿抗胀率等,结果表明:与未预处理的热处理材相比,经甘油水溶液预处理后,热处理材的密度增加率提高；平衡含水率先降低后增加;吸水和吸湿抗胀率均显著增加.
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| 关 键 词： | 甘油水溶液 预处理 热处理 尺寸稳定性 |
Glycerin Pretreatment Effect on Heat-treated Wood Dimensional Stability |
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| DANG Ya-ping
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YAN Li
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LEI Ya-fang.Glycerin Pretreatment Effect on Heat-treated Wood Dimensional Stability[J].China Wood Industry,2012,26(3):55-58. |
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| Authors: | DANG Ya-ping YAN Li LEI Ya-fang |
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| Institution: | (Faculty of Mechanical and Electrical Engineering,Northwest Agriculture & Forestry University, Yangling 712100,Shanxi,China) |
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| Abstract: | Poplar(Populus tomentosa) and spruce(Picea asperata) samples were pretreated by soaking them in a glycerin solution before further heat treatment.Density increasing rate,moisture content,moisture adsorption antiswelling efficiency(ASE),and water absorption ASE of the treated wood samples were measured.The results showed that after glycerin pretreatment the sample’s density increasing rate increased,their equilibrium moisture content first decreased but then increased,and both moisture adsorption and water absorption ASEs also increased. |
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| Keywords: | glycerin solution pretreatment heat treatment dimensional stability |
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