酶处理对响叶杨木材表面动态润湿性能的影响  

Enzyme pretreatments and dynamic wettability of a poplar surface

作　　者：韩书广[1] 周兆兵[1] 江华[2] 张洋[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037 [2]南京林业大学化学工程学院,江苏南京210037

出　　处：《浙江林学院学报》2009年第6期774-777,共4页Journal of Zhejiang Forestry College

基　　金：国家自然科学基金资助项目(30671640)

摘　　要：为了研究分析酶处理工艺对杨木表面动态润湿性能的影响,利用木材表面动态润湿模型研究了酶处理前后响叶杨Populus adenopoda木材表面的动态润湿性能变化情况,以及酶处理用量和处理时间对其动态润湿性能变化的影响。研究结果表明:酶处理方法能提高杨木表面动态润湿性能。在相同条件下,水、甘油和二碘甲烷等3种试剂在酶处理后的杨木表面的K值(与液体湿润速度有关的衰减速率常数)的增幅分别达11.5%,7.3%和4.1%;随着酶用量的增加,以及酶处理时间的延长,杨木表面的动态润湿性能改善效果更加明显。To understand the effects of enzyme pretreatments on the dynamic wettability, changes in dynamic wettability of a poplar surface treated with an enzyme were studied using the dynamic wettability model of a wood surface. Also, effects of enzyme concentration and enzyme pretreatmcnt time on dynamic wettability of a poplar surface were discussed. Results showed that enzyme pretreatments improved the dynamic wettability of a poplar surface with K value increments on the treated poplar surfaces of 11.5% for distilled water, 7.3% for glycerol, and 4.1% for methylene iodide. In addition, the dynamic wettability of the poplar surface increased as the dose of the enzyme increased, and for a droplet on the poplar surface, a longer treatment time obtained a higher dynamic wettability.

关 键 词：林业工程 杨木 动态润湿性能 酶处理 

分 类 号：S718.4[农业科学—林学]