无机木质复合防火装饰板的研制

发布时间：2018-03-21 15:49

本文选题：氯氧镁水泥　切入点：木质单板　出处：《南京林业大学》2012年硕士论文　论文类型：学位论文

【摘要】：纯木质板材，天然的木质花纹、较高的强重比和木质保温调湿等特质，广泛应用于建筑、家具、室内装饰等与人们生活密切相关的领域，但木材属于易燃材料。而氯氧镁无机防火板因其具有不燃性、可塑性、耐酸碱、防蛀,且能有效地阻隔音波和保湿而得到广泛重视。它属于氯氧镁水泥类制品,以镁质胶凝材料为主体,网状玻璃纤维布为增强材料,轻质保湿材料为填充物复合而成,能满足不燃性要求,是一种新型环保型板材。但由于该板防水性能比较差，表面吸湿后出现返卤泛霜、弯曲变形等现象，严重影响其装饰性能和应用范围。本论文主要研究将木材和氯氧镁无机防火板两类材料的特点进行复合，使无机木质复合防火防火装饰板产品兼具装饰耐用和A2级不燃防火的特点。试验了乳胶（加或不加固化剂）与双组分聚氨酯两种胶粘剂、三/五/七层三种层积结构、100~160g/m2聚氨酯施加量、1~2mm中层板厚度对复合板材性能的影响。结果表明：（1）木质单板与无机板的胶合，使用双组分聚氨酯胶胶合性能优于乳胶，克服了氯氧镁板材耐水性差、体积不稳定等缺点，解决了吸湿、返卤泛霜、弯曲变形等技术难题；（2）通过控制单板厚度，有效控制燃烧试验中的热释放速率、燃烧热值和烟气毒性以及板材的力学性能。通过国家防火建材质检中心全项性能指标检测，所有技术指标均达到或超过国家标准。
[Abstract]:Pure wood panels, natural wood patterns, high weight ratios and wood insulation and moisture conditioning, are widely used in buildings, furniture, interior decoration and other fields closely related to people's lives, But wood belongs to flammable material, and magnesium oxychloride inorganic fireproof board is widely paid attention to because of its noncombustibility, plasticity, acid-alkali resistance, moth-proof, and can effectively block sound wave and moisturize. It belongs to magnesium oxychloride cement products. Taking magnesia cementitious material as main body, net glass fiber cloth as reinforcing material and light moisturizing material as filler, it can meet the requirements of noncombustibility and is a new type of environmental protection plate. However, because of its poor waterproof performance, After moisture absorption, the phenomena such as defrosting, bending deformation and so on seriously affect its decorative performance and application scope. In this paper, the characteristics of wood and magnesium oxychloride inorganic fireproof board were studied. The inorganic wood composite fire prevention and fire resistant decorative board products have the characteristics of decoration durability and A2 class non-fire resistance. Two kinds of adhesives, emulsion (with or without curing agent) and two-component polyurethane, have been tested. The effect of the thickness of 3 / 5 / 7 layer three kinds of laminates on the properties of the composite plates by the application of 100 g / m 2 polyurethane. The results show that the binder of wood veneer and inorganic board is superior to emulsion by using two-component polyurethane adhesive, which overcomes the shortcomings of poor water resistance and unstable volume of magnesium oxychloride sheet, and solves the problems of moisture absorption and halogen flooding. By controlling the thickness of the veneer, effectively controlling the heat release rate, combustion calorific value and smoke toxicity, and the mechanical properties of the plate, the bending deformation and other technical problems, the whole performance index of the National Center for quality Inspection of Fire-proof Building Materials has been tested. All technical indicators are up to or above the national standard.
【学位授予单位】：南京林业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TS653

【参考文献】