膨胀珍珠岩复合相变储能材料的制备及其在外墙保温中的应用研究

发布时间：2018-02-26 18:25

本文关键词： 外墙外保温相变材料膨胀珍珠岩制备实验技术经济分析　出处：《西南石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着我国的经济水平及居民居住条件的不断提高,建筑的保温隔热等功能不断完善,但在满足居民舒适度要求的同时,建筑能耗问题也更加突出。我国既有建筑95%为高耗能建筑,建筑耗能达到全国总耗能量的33%左右,而外墙耗能占建筑能耗的比例最大,因此外墙节能保温材料的研制与技术的应用,将对建筑节能起到至关重要的作用。相变储能材料具有调节温度、储存能量等特性,而外墙保温具有保温、隔热等性能,若将二者加以结合,即在外墙的保温砂浆、石膏、涂料中应用相变储能材料具有保温、隔热功能,同时也具有调节温度以及储存能量的特性,将对大大降低建筑的整体能耗具有重要意义。本文通过对外墙保温系统的发展沿革及其材料与技术的应用现状,对比研究得到外墙外保温系统是最有价值的保温体系,然后针对外墙外保温体系制备适用于保温砂浆的膨胀珍珠岩复合相变储能材料。通过膨胀珍珠岩改性实验,使得膨胀珍珠岩的憎水性提高,吸水率下降。在外墙外保温系统应用中,膨胀珍珠岩改性实验解决膨胀珍珠岩吸水率高这一缺点。正癸酸/膨胀珍珠岩复合相变储能材料制备实验采用真空吸附法与水解沉积法相结合的方法,得到正癸酸与膨胀珍珠岩材料配比。然后定性地分析了正癸酸/膨胀珍珠岩复合相变储能新型材料在外墙保温砂浆中的技术经济性能,为正癸酸/膨胀珍珠岩复合相变储能新型材料的应用与推广提供了理论依据。
[Abstract]:With the continuous improvement of our country's economic level and residents' living conditions, the functions of heat preservation and insulation of buildings are constantly improved, but at the same time, while meeting the requirements of residents' comfort, The problem of building energy consumption is also more prominent. In our country, 95% buildings are high energy consuming buildings, and the building energy consumption is about 33% of the total energy consumption in China, while the energy consumption of external walls accounts for the largest proportion of building energy consumption. Therefore, the development of exterior wall energy-saving and thermal insulation materials and the application of technology will play an important role in building energy conservation. Phase change energy storage materials have the characteristics of regulating temperature and storing energy, while external wall heat preservation has the properties of heat preservation and heat insulation. If the two are combined, that is, the application of phase change energy storage materials in external wall insulation mortar, gypsum and paint has the function of heat preservation and insulation, at the same time, it also has the characteristics of regulating temperature and storing energy. It will greatly reduce the overall energy consumption of the building. Through the development and evolution of the external wall insulation system and the application of materials and technology, it is found that the external wall thermal insulation system is the most valuable thermal insulation system. Then the expanded perlite composite phase change energy storage material suitable for thermal insulation mortar was prepared according to the external wall thermal insulation system. The hydrophobicity of expanded perlite was improved by the experiment of expanded perlite modification. Decrease in water absorption. In the application of external insulation system, The modification experiment of expanded perlite solves the shortcoming of high water absorption of expanded perlite. The preparation of composite phase change energy storage material of sebacic acid / expanded perlite is made by the method of vacuum adsorption combined with hydrolytic deposition. The ratio of sebacic acid and expanded perlite is obtained. Then the technical and economic properties of the new composite phase change energy storage material of sebacic acid / expanded perlite in external wall insulation mortar are analyzed qualitatively. It provides a theoretical basis for the application and popularization of the new composite phase change energy storage materials of sebacic acid / expanded perlite.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB34;TU761.12

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