人工林杨树木材液体纵向渗透性研究-林业工程学报.PDFVIP

宋晓辉 高东海 王 群 () :通过系列化试验,用常压和减压浸渍的方法, 研究了人工林 树木材的渗透工艺及工艺参数对纵向渗透 性能的影响试验结果表明:( 1) 真空浸渍优于常压浸渍; ( 2) 渗透剂的加入对 树木材的液体纵向渗透性有很大 的影响;(3) 增加浸渍时间, 可显著增大深度, 浸渍24 h渗透深度是浸渍4 h的10倍, 但再延长时间效果不明显;( 4) 提 高染液温度在较短的时间内能较好地改善 树木材的渗透性, 染液温度达到95e 时, 纵向渗透深度最深可达 38mm染色的最佳温度为85~ 90e :人工林 树;木材; 渗透性; 浸渍 Study on Liquid Longitudinal Permeability of Wood from Plantation Poplar MSONG Xiao-hui, GAO Dong-hai, WANG un Abstract:Effects of treating technology and technology parameters on liquid longitudinal penetration of woodfrom plantation poplar were studiedrespectively in this paper by impregnating1The experiments were carried out under normal pressure aswell as vacuum condition1The study indicated that:Firstly,vacuum impregnating was much better than normal pressure impregnating1Secondly per- meable agent had a great influence on wood permeability1Permeability increased with permeable agent superimposition1Thirdly, prolong impregnating time may increase permeable depth remarkably1When the poplar woodwas impregnated for 24hours,the per- meable depth was as 10 times as others that was impregnated for 4 hours1 But if time was prolonged further,the permeable depth changed a little1Fourthly, raising impregnating agent. s temperature could improvewood permeability in a short time1When temper- ature of impregnating agent reaches 95e , its longitudinal permeable depth was 38 mm, and the optimum temperature was 85~ 90e 1 Key words :Plantation poplar;Wood;Permeability; Impregnate Author. s address: College of Materials Science and Engineering,Beijing University of Technology, 100022, Beijing,China , [1] , 1 ,, , 111 试验材料与仪器设备 11111