| 木质材料动态润湿性能的表征 |
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| 引用本文： | 周兆兵,张洋,贾翀. 木质材料动态润湿性能的表征[J]. 南京林业大学学报(自然科学版), 2007, 31(5): 71-74 |
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| 作者姓名： | 周兆兵 张洋 贾翀 |
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| 作者单位： | 南京林业大学木材工业学院,江苏,南京,210037 |
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| 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.
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| 关 键 词： | 动态润湿性能 异氰酸酯 脲醛树脂 中密度稻草板 木质材料 动态 润湿性能 表征 Materials Wood Wettability 研究 中密度稻草板 脲醛树脂 异氰酸酯 运用 评价 系数 数学模型 材料表面 描述 结构与性能 效果 难易程度 |
| 文章编号： | 1000-2006（2007）05-0071-04 |
| 修稿时间： | 2006-11-23 |
Describing on Dynamic Wettability of Wood and Wood-based Materials |
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| ZHOU Zhao-bing,ZHANG Yang,JIA Chong. Describing on Dynamic Wettability of Wood and Wood-based Materials[J]. Journal of Nanjing Forestry University(Natural Sciences ), 2007, 31(5): 71-74 |
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| Authors: | ZHOU Zhao-bing ZHANG Yang JIA Chong |
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| Affiliation: | College of Wood Science and Technology Nanjing Forestry University,Nanjing 210037,China |
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| Abstract: | 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 wood-based 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. |
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| Keywords: | Dynamic wettability MDI UF Median density straw board |
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