文献类型：期刊文献

中文题名：不同干燥方法对杉木人工林木材浸注性的影响

英文题名：Effect of Different Drying Methods on the Liquid Impregnation of Chinese Fir Plantation Wood

作者：吕建雄[1] 林志远[1] 蒋佳荔[1] 赵有科[1] 江京辉[1] 高瑞清[1] 殷亚方[1]

第一作者：吕建雄

机构：[1]中国林业科学研究院木材工业研究所国家林业局木材科学与技术重点实验室

年份：2006

卷号：42

期号：10

起止页码：85-90

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目"干燥方法对杉木人工林木材浸注性影响机理的研究"(30271053)的一部分。

语种：中文

中文关键词：杉木;高频真空干燥;常规窑干;高温干燥;液体浸注性;纹孔闭塞率

外文关键词：Cunninghamia lanceolata ; radio-frequency vacuum drying （RFVD） ; conventional kiln drying （KD） ; high temperature drying（HT） ; liquid impregnation; pit aspiration ratio

分类号：S781.71

摘要：采用高频真空干燥、常规窑干和高温干燥3种方法对杉木人工林木材的心、边板材进行干燥处理,用毛细管上升法评价干燥后试样的浸注性能,用半薄切片法测定干燥试样具缘纹孔的闭塞率,最后用扫描电子显微镜观察干燥试样微观构造的变化,比较分析3种干燥方法对杉木人工林木材浸注性的影响机理。结果表明对于杉木边材,经高频真空干燥后试样的浸注性显著高于常规干燥和高温干燥后试样的浸注性,后2种干燥方法对试样浸注性影响的差异并不显著;对于杉木心材,高频真空干燥与高温干燥后试样的浸注性存在显著差异,而高频真空干燥与常规干燥之间、高温干燥与常规干燥之间对试样浸注性的影响差异均不显著;3种干燥方法处理后,杉木边材的浸注性均显著高于心材的浸注性;具缘纹孔的闭塞率较低以及部分具缘纹孔周缘破裂是高频真空干燥后木材浸注性提高的主要原因。
Chinese Fir（ Cunninghamia lanceolata） plantation sapwood and heartwood boards were treated by radio-frequency vacuum drying（RFVD）, conventional kiln drying（KD） and high temperature drying（HT） methods. The maximum amount of dyeing solution uptake by the capillary rise method was used to evaluate the liquid impregnation properties of treated wood. The pit aspiration ratio was determined by semithin section method. Changes in the wood microstructure were investigated using scanning electron microscopy. The results showed that the liquid impregnation of Chinese Fir sapwood after radio-frequency vacuum drying is significant higher than that after conventional kiln drying and high temperature drying, there is no significant difference of liquid impregnation for Chinese Fir sapwood after conventional kiln drying and high temperature drying. The effect of radio-frequency vacuum drying and high temperature drying methods on liquid impregnation of Chinese Fir heartwood is significant, but there is no significant difference of liquid impregnation for Chinese Fir heartwood after radio-frequency vacuum drying and conventional kiln drying, high temperature drying and conventional kiln drying. The liquid impregnation of Chinese Fir sapwood is significantly higher than heartwood after three drying treatments. Low pit aspiration ratio and cracks of some bordered pits are the main reasons for increasing liquid impregnation after radio-frequency vacuum drying treatment.