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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。
Biomass composite materials made of agricultural, forestry waste and inorganic materials are environmentally friendly and renewable, and have broad application prospects. In this study, waste plywood as a substrate, according to a certain proportion of active magnesium oxide and magnesium chloride prepared by the modified magnesite cement, magnesite cement, glass fiber and waste plywood through the optimization of the preparation of multi-layer structure of wood-based magnesia Composite materials, while the use of advanced testing and testing equipment to detect the basic parameters of the composite material and mechanical properties. The results showed that the formaldehyde emission of wood-based magnesia composites reached the national E_0 level. It has good resistance to boiling water, aging resistance and mechanical properties superior to structural plywood. Fiberglass cladding has an important contribution to enhancing the strength of materials.