摘要
气凝胶是一种合成多孔材料,具有显著低于其他商业绝热材料的热导率,兼具独有的物理和化学特性,因而被认为是最有前途的建筑保温材料之一.综述了硅基气凝胶材料的制备工艺及方法、增强改性技术以及SiO2 气凝胶在建筑材料领域(如隔热板/毡、水泥、砂浆、混凝土、玻璃系统和太阳能集热器盖等)的研究应用现状,并对气凝胶复合材料的研究方向进行了展望.
Abstract
Aerogel is a kind of synthetic porous material,which has significantly lower thermal conductivity than other commercial thermal insulation materials,and has special physical and chemical properties.Therefore,it is considered as one of the most promising building insulation materials.This paper summarizes the preparation process of silica-based aerogel materials,the reinforcement and modification technology,and the research and application status of SiO2 aerogel in the field of building materials(such as insulation board(felt),cement,mortar,concrete,glass system,solar collector cover,etc.).At the end of this paper,the research trend of aerogel composites in the future research,production and application is prospected.
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