溶胶-凝胶法改良速生桉树气干材材性研究  

Study on Sol-gel Modified Material Properties of Fast-growing Eucalyptus Air Dried Wood

作　　者：张钰雯[1] 符韵林[1] 唐贤明[1] 

机构地区：[1]广西大学林学院/广西高校林业科学与工程重点实验室

出　　处：《林产工业》2015年第2期15-17,22,共4页China Forest Products Industry

基　　金：教育部霍英东教育基金(121031)项目:纳米二氧化硅增强木材表面特性反应路径及机理研究

摘　　要：采用溶胶-凝胶法,将速生桉树气干材分别浸渍3、6、9d,检测了改良材的物理力学性能、接触角、耐老化性能,观察了木材微观形貌特征和二氧化硅(SiO_2)分布状态。结果表明,随着浸渍时间延长,改良材物理力学性能均有不同程度的提高,具有良好的疏水性,接触角可达130°以上。By sol-gel method,fast-growing eucalyptus air dried wood were respectively dipped for three,six and nine days.Physical and mechanical properties,contact angle and aging resistance of improved wood were tested.Morphology characteristics of wood and silicon dioxide（SiO2） distribution state were observed.Results show with the extension of dipping time,the physical and mechanical properties of unproved wood are increased in varying degrees,it has good hydrophobic property,and contact angle can be above 130°.

关 键 词：桉树气干材 二氧化硅 浸渍时间 物理力学性能 微观结构 

分 类 号：S781.7[农业科学—木材科学与技术]