超临界CO_2流体的夹带剂对木材渗透性的影响  

Effects of co-solvent in supercritical CO_2 treatment on wood permeability

作　　者：肖忠平[1] 卢晓宁[2] 陆继圣[3] 

机构地区：[1]扬州工业职业技术学院建筑工程系,江苏扬州225127 [2]南京林业大学木材工业学院,江苏南京210037 [3]福建农林大学材料工程学院,福建福州350002

出　　处：《福建林学院学报》2009年第2期178-182,共5页Journal of Fujian College of Forestry

基　　金：扬州工业职业技术学院科研启动基金资助项目;福建省自然科学基金资助项目(E0510025)

摘　　要：以甲醇、乙醇、苯—乙醇为夹带剂,考察超临界CO2流体处理对福建产马尾松、檫木渗透性及失重率的影响。结果表明,试材经超临界CO2流体处理后,渗透性得到了较大地改善,夹带剂的使用更有利于木材渗透性的提高,在3种夹带剂中,以苯—乙醇效果最佳,马尾松、檫木的渗透性变化率最高分别可达504%和339%。The permeability of Masson＇s pine and Chinese sassafras treated with methanol, ethanol or benzne-ethanol using supereritical CO2 was measured with rising-water volume displacement method. The results indicated that the permeability of samples was improved in supereritical CO2 treatment. The co-solvent was propitious to the permeability improvement of wood. The benzene-ethanol was better for permeability improvement than methanol, ethanol and the permeability of Masson＇s pine, Chinese sassafras were increased to 504%, 339%.

关 键 词：超临界CO2 夹带剂 渗透性 木材 

分 类 号：S781.35[农业科学—木材科学与技术]