杨木单板及其染色后的光变色研究  

Study on Light-induced Discoloration of Poplar Veneer and Dyed Veneer

作　　者：郭洪武[1] 李黎[1] 王金林[2] 李春生[2] 

机构地区：[1]北京林业大学材料科学与技术学院,北京1000832 [2]中国林业科学研究院木材工业研究所,北京100091

出　　处：《林业机械与木工设备》2011年第6期15-18,共4页Forestry Machinery & Woodworking Equipment

基　　金：国家自然科学基金(30972302)

摘　　要：以杨木单板及其染色单板为试材,使用氙光衰减仪进行辐射试验,分析这两种单板的光变色规律及影响因素,并进行耐光性能评价。结果表明:杨木单板的光变色是木材本身;染色杨木单板的光变色是染料和木材共同作用的结果,影响其光变色的主要因素是染料的品种和结构。因此,杨木单板的光变色小于染色杨木单板,而染色杨木单板中酸性蓝染色单板光变色最显著。With poplar veneer and dyed veneer as test pieces,a xenon attenuation instrument is used to conduct radiation tests in order to analyze light-induced discoloration rules and influential factors and to evaluate their light fastness.The results show that the light-induced degradation of poplar veneer is caused by the veneer itself and that the light-induced degradation of dyed veneer is the communal effect of dye and wood,with the main factors influencing the light-induced discoloration being the varieties and structures of dye.As a result,the light-induced discoloration of poplar veneer is smaller than that of dyed veneer and acid blue dyed veneer has the most noticeable light-induced discoloration.

关 键 词：杨木单板 染色杨木单板 光变色规律 影响因素 

分 类 号：S781[农业科学—木材科学与技术]