(6944)--氧化铝粉体填充制备复合纤维板的物理力学性能分析.pdf

技术探讨 科技 TECHNOLOGY 氧化铝粉体填充制备复合纤维板的 物理力学性能分析 摘要： 探讨氧化铝粉体施加量对复合纤维板性能的影响，采用不同施加量的氧化铝粉与已施胶木质纤维进行混合分别制备复合 纤维板，测试分析吸水厚度膨胀率和力学强度，并表征其微观分布形貌。结果表明，在本试验条件范围内，氧化铝粉体施加量 由3%增加至15%时，氧化铝颗粒分布逐渐致密，复合纤维板的吸水厚度膨胀率未见较大的变化，内结合强度、静曲强度及弹性模 量呈递减趋势，相关物理力学性能均达到GB/T 31765—2015《高密度纤维板》中潮湿型高密度纤维板要求。 关键词： 纤维板；氧化铝；物理力学性能 中图分类号： 文献标志码： 文章编号： TS653 B 1673-5064（2019）09-0013-05 1 1 2 1 2 1 Li Xinpu , Huang Yuan , Wei Qifeng , Shao Chuang , Qin Zhangji , Yuan Quanping 1. School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China 2. Guangxi Fenglin Wood Industry Group Co. Ltd., Nanning 530221, China Abstract In this study, the influence of aluminum oxide powder amount on the performance of fiberboard composite was investigated. ： Different amounts of aluminum oxide powder were mixed and dispersed with wood fiber to make fiberboard composite, and thickness swelling rate of water absorption (TS) and mechanical strength were tested and analyzed, as well as the distribution morphology of alumina in fiberboard. The results indicated that increasing amount of aluminum oxide powder from 3% to 15%, distribution density of aluminum oxide particles in the fiberboard gradually increased. And the TS showed no great change, while internal bonding strength (IB), modulus of rupture (MOR) and modulus of elasticity (MOE) exhibited a decreasing trend. The related physical and mechanical properties were excellent according with the demand of humid high density fiberboard in GB/T 31765—2015 High density fiberboard. Key words fiberboard; aluminum oxide; physical and mechanical properties ： 木质导热材料可用于制造地采暖用木质地板，在 制品的导热性能，有关专利技术