摘要
润湿性表征胶粘剂与木质材料接触时在木质材料表面上粘附、渗透及铺展的难易程度和效果。笔者根据木质材料的结构与性能特点,建立了描述其表面动态润湿性能的数学模型,在模型中提出了用系数K来评价材料的润湿性能。运用该模型对异氰酸酯(MDI)和脲醛树脂(UF)在中密度稻草板(MDSB)表面的润湿性能进行了研究,得出MDI的K值较大,MDI在中密度稻草板表面的润湿性能较好。
Wetting is an important interface characteristic of wood-based material, which describes what happens when an adhesive comes into contact with a wood surface. In this study, a wetting model was developed to describe the dynamic contact angle process at the woodbased material surface. A parameter （K） was used to evaluate the wettability during the adhesive wetting process. By applying the wetting model, two resins （MDI） and （UF） wetting of median density straw board （MDSB） was studied. It was seen that the wetting model could accurately describe the dynamic adhesive wetting process on MDSB surface. The model analysis showed that MDI resin exhibited a better wettability on MDSB surface than UF resin did.
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第5期71-74,共4页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
国家自然科学基金资助项目(30671640)
