一种气凝胶保温隔热涂料的节能评价研究

Energy Saving Evaluation of an Aerogel Heat Insulation Coating

摘要: 我国是一个建筑大国，建筑能耗每年也随之增长。现采用的保温隔热材料存在很多安全隐患，新型保温隔热材料在保证其功能外，从根本上杜绝了现用保温材料存在的问题。本文在基层墙体表面外涂气凝胶涂料，测定外墙传热系数。外墙传热系数(热阻)的检测数据表明在自身热阻值较大的基层墙体(铝蜂窝复合墙板)单侧(热测)涂刷3 mm涂料系统情况下，其等效热阻能够达到0.86 (m²•K)/W，可与35 mm模塑聚苯板的保温隔热效果相媲美。

Abstract: As China is a big building country, building energy consumption increases every year. There are a lot of safety risks in the heat preservation and heat insulation materials used now. The new heat preservation and heat insulation coating ensures the function itself and fundamentally puts an end to the problems existing in the heat preservation materials. In this paper, aerogel coating is applied to the surface of the wall and the heat transfer coefficient of the exterior wall is measured. The heat transfer coefficient of exterior wall (thermal resistance) test data shows that the equivalent thermal resistance of the base wall (aluminum honeycomb composite wall panel) with a large thermal resistance value can reach 0.86 (m²•K)/W when one side of the coating system is coated with 3 mm (thermal measurement), which is comparable to the thermal insulation effect of 35 mm molded polystyrene board.