新型建筑墙体无机保温隔热板材的研究与开发

发布时间：2018-09-12 16:59

【摘要】：近年来建筑火灾的频繁发生,与建筑墙体保温层的有机材料不无关系。因此,高效无机保温隔热材料迎来了前所未有的发展机遇。通过对材质、技术及资源状况等方面的综合分析,本论文开展了以膨胀珍珠岩为绝热材料保温隔热板材的研发及其产业化以及创新型无机保温隔热材料的探索。本文的研究主要围绕膨胀珍珠岩基水玻璃粘结剂体系无机保温隔热板材的优化、膨胀珍珠岩基水泥粘结剂体系无机保温隔热板材的研发及其产业化和创新型无机保温材料—低温泡沫玻璃的初步探索三个方面展开。通过对水玻璃粘结剂的改性、膨胀珍珠岩骨料的不同种类、级配、憎水性的改性等方面的研究,与现有的水玻璃膨胀珍珠岩体系无机保温隔热板材相比,优化后板材的性能得到了很大程度上的改善：力学强度提高了30%,导热系数降低了20%,软化系数由40%提高到了70%以上；水泥膨胀珍珠岩体系无机保温隔热板材的研发,主要从板材成型工艺、原料配方及养护制度对板材性能的影响等方面着手,研制出了一种容重约为180kg/m3,抗压强度高于0.8MPa,导热系数低于0.06W/(m-K),养护时间少于10h的高性能无机板材,并完成了其相应的产业化中试；通过胶体化学工艺得到Na2O-B2O3-SiO2系高粘度溶胶,然后将得到的溶胶进行低温干燥及热处理发泡从而获得一种新型非晶态、多孔水合玻璃材料,且这种材料有望成为下一代广泛应用的新型无机保温隔热材料。
[Abstract]:The frequent occurrence of building fire in recent years is related to the organic materials of building wall insulation layer. Therefore, high-efficiency inorganic thermal insulation materials ushered in unprecedented opportunities for development. Based on the comprehensive analysis of material, technology and resource status, the research and development of thermal insulation board with expanded perlite as insulation material and its industrialization as well as the exploration of innovative inorganic thermal insulation material are carried out in this paper. This paper focuses on the optimization of expanded perlite based water glass binder system inorganic thermal insulation plate. The development and industrialization of inorganic thermal insulation board of expanded perlite based cement binder system and the preliminary exploration of innovative inorganic thermal insulation material-low temperature foam glass were carried out. Through the modification of sodium silicate binder, different kinds of expanded perlite aggregate, gradation, hydrophobicity modification and so on, compared with the existing inorganic thermal insulation plate of water glass expanded perlite system, The properties of the optimized plates have been greatly improved: the mechanical strength has been increased by 30 percent, the thermal conductivity has been reduced by 20 percent, the softening coefficient has been increased from 40 percent to more than 70 percent, and the development of inorganic thermal insulation plates for cement expansion perlite systems, A kind of high performance inorganic plate with a bulk density of about 180kg / m ~ 3, compressive strength of more than 0.8MPa, thermal conductivity lower than 0.06W/ (m-K) and curing time of less than 10h was developed from the aspects of forming process, formula of raw materials and curing system, etc. The high viscosity sol of Na2O-B2O3-SiO2 system was obtained by colloidal chemical process, and then the sol was dried at low temperature and foamed by heat treatment to obtain a new amorphous, porous hydrated glass material. And this material is expected to be a new type of inorganic insulation material widely used in the next generation.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU551.3

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