高温过热蒸汽处理对木材结晶性能的影响  

Impact on timber crystallization performance of superheated steam-treated wood under high temperature and pressure

作　　者：张士成[1] 齐华春[1,2] 刘一星[2] 程万里[2] 

机构地区：[1]北华大学林学院,吉林吉林132013 [2]东北林业大学,生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《南京林业大学学报（自然科学版）》2010年第5期164-166,共3页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家自然科学基金项目(30871981)

摘　　要：以日本柳杉(Cryptomeria japonica Don)为试材,经120、140、180℃,相对湿度为0、60%和100%过热蒸汽处理后,采用X-射线衍射仪进行测试,分析了不同温度及湿度条件对木材相对结晶度的影响。通过正交试验分析得出:高温高湿处理后木材的相对结晶度最大,处理后木材的相对结晶度受温度的影响非常显著,受相对湿度的影响不显著。Effects of temperature and relative humidity（RH） on relative crystallinity of wood were discussed in this paper.Specimens from Japanese Sugi（Cryptomeria japonica Don） wood were treated with superheated steam under different temperature （120,140,180 ℃） and different RH （0,60 %,100 %）,and the effects on relative crystallinity of wood was examined by X-ray diffractometer.The highest relative crystallinity was found on specimens treated with the highest temperature and the highest RH by orthogonal experiment analysis.It was found that temperature has more important effect than RH.Variance analysis showed that relative crystallinity depends more significantly on temperature,and less significantly on RH.

关 键 词：高温过热蒸汽 日本柳杉 相对结晶度 

分 类 号：S781[农业科学—木材科学与技术]