木基镁质复合材料的制备及力学性能研究  

Process and mechnical property study on wood magnesite composite materials

作　　者：李睿璇 应俊华 沈杨[1] 罗斌[1] 刘毅[1] 

机构地区：[1]北京林业大学木质材料科学与应用教育部重点实验室北京林业大学木材科学与工程北京市重点实验室北京林业大学林业生物质材料与能源教育部工程研究中心,北京100083

出　　处：《木材加工机械》2017年第3期32-35,共4页Wood Processing Machinery

基　　金：北京市级大学生创新训练项目(S201610022087);国家林业公益性行业科研专项项目(201204702)

摘　　要：以农林废弃物和无机材料进行复合制备成的生物质复合建材,具有环保和可再生性,应用前景广阔。本研究以废旧胶合板为基材,按一定比例调配活性氧化镁和氯化镁制备改性菱镁水泥,将菱镁水泥、玻纤丝和废旧胶合板通过优化组合制备多层结构的建筑用木基镁质复合材料,同时利用先进的测试分析仪器检测该复合材料的基本参数与力学性能。结果表明:木基镁质复合材料甲醛释放量达到国家E_0级标准,耐沸水、耐老化性能好,力学性能优于结构胶合板,玻纤丝覆面对增强材料强度具有重要贡献。The biomass composite building materials with agricultural and forestry waste and inorganic materials, wich is of with environmental protection and regeneration, has broad application prospect. In this paper, using waste plywood as base material, the modified magnesite cement was prepared by the active magnesium oxide and magnesium chloride in a certain proportion. The magnesite cement, glass fiber and waste plywood were combined to prepare multilayer structural wood-based magnesium composite materials for building. Meanwhile the basic parameters and mechanical properties of the composite were tested by advanced test analysis instrument. The results show that the formaldehyde emission of wood-based magnesium composites material reaches the national standard of E_0, which has good resistance to boiling water, anti-aging properties, mechanical properties is better than that of structural plywood, and glass fiber has important contribution to the strength of material.

关 键 词：菱镁水泥 生物质复合建材 力学性能 

分 类 号：TS653[轻工技术与工程]