摘要
无机氧化硅气凝胶因具有超低导热系数、A级不燃、吸湿率低、轻质等特点,在航天航空、工业及建筑领域的节能减碳方面具有广泛的应用潜力。然而氧化硅气凝胶力学性能差、制备成本高等缺点限制了其发展应用。介绍了氧化硅气凝胶绝热材料制备工艺的研究进展,对氧化硅气凝胶在建筑领域的应用形式(如超轻气凝胶泡沫混凝土、超高性能气凝胶保温隔热板、超低传热系数气凝胶节能玻璃等)进行了综述,并对氧化硅气凝胶在建筑节能领域的发展方向进行了展望。响应碳中和发展目标,随着气凝胶制备技术的发展与成本降低,氧化硅气凝胶绝热材料将在建筑墙体保温隔热方面广泛应用,同时对其性能提出了更多功能性要求,对氧化硅气凝胶材料还需开展更系统的基础研究以及工程应用技术研发,推动建筑领域的节能减碳与可持续发展。
Inorganic silica aerogels have broad application potential in energy saving and carbon reduction in aerospace,aviation,industrial and construction fields due to their ultra-low thermal conductivity,nonflammability of class A,low mo-isture absorption rate and light weight.However,poor mechanical property and high preparation cost limit the development and application of silica aerogels.The research progress of preparation technology of silica aerogel insulation materials was introduced.The application forms of silica aerogels in building field(such as super light aerogel foam concrete,super high performance aerogel insulation board,ultra-low heat transfer coefficient aerogel energy-saving glass)were reviewed,and the development trend of silica aerogels in building energy conservation was prospected.In response to the goal of carbon neutral development,with the development and cost reduction of aerogel preparation technology,silica aerogel insulation materials would be widely applied in building insulation,and at the same time,more functional requirements were put forward for their performance.Therefore,more systematic basic research and engineering application technology research are needed for silica aerogel materials to promote energy conservation,carbon reduction and sustainable development in the field of construction.
作者
张广鹏
吴会军
刘彦辰
杨丽修
Zhang Guangpeng;Wu Huijun;Liu Yanchen;Yang Lixiu(College of Civil Engineering,Institute of Building Energy Efficiency,Guangzhou University,Guangzhou 510006,China;Guangdong Provincial Key Laboratory of Building Energy Efficiency and Application Technologies,Guangzhou University)
出处
《无机盐工业》
CSCD
北大核心
2021年第9期1-5,共5页
Inorganic Chemicals Industry
基金
国家自然科学基金项目(51678167)。
关键词
氧化硅气凝胶
绝热材料
建筑减碳
碳中和
silica aerogels
thermal insulation materials
building carbon reduction
carbon neutralization
