断面密度分布与中密度纤维板力学性能关系的初步研究  

Effects of VDP on Mechanical Properties of MDF

作　　者：张扬[1] 于志明[1] 黄伟雄 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083 [2]广西梧州三威林产公司,广西梧州543001

出　　处：《中国人造板》2008年第10期8-10,共3页China Wood-Based Panels

基　　金：废旧人造板回收利用技术的引进(948项目)(2006-4-106);国家"十一五"科技支撑"木制材料环境友好制造技术"(2006BAD18B0904)

摘　　要：通过改变热压曲线,热压出断面密度分布不同的板材并测量其静曲强度、内结合强度,进而分析平均密度、表层最高密度以及芯层密度与静曲强度、内结合强度的关系。结果表明:平均密度与板材力学性能之间的近似线性关系并不可靠;在一定的平均密度范围内,静曲强度与中密度纤维板表层最高密度呈近似的线性关系,内结合强度与中密度纤维板芯层密度呈相关性良好的线性关系。To investigate the relationship between VDP and MOR, inner-bonding strength, different VDP boards were hot-pressed following different hot-pressing curves and the MOR, inner-bonding strength of each board were tested later on. The authors analyzed the relationships among the average density, the highest surface layer density, the inner layer density and MOR, inner-bonding strength. The results revealed that there was not an approximate linear relationship between the average density and the mechanics performance, however, there was the linear relationship between MOR and the highest surface density, and there was also a linear relationship between inner-bonding strength and the inner layer density within certain scope of average density.

关 键 词：中密度纤维板 断面密度分布 静曲强度 内结合强度 

分 类 号：TS653[轻工技术与工程]