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北方建筑保温节能、南方建筑隔热降温是长期来困扰着建筑界的难题之一。然而,解决保温隔热问题的重要物质条件是寻找理想的绝热材料。绝热材料的应用和发展,同传热学的发展紧密相关。传热学中的导热学和热辐射学,是绝热的理论基础。导热学至今已有200多年的历史,以其为理论基础的多孔绝热材料的普遍应用已不足为奇了;而热辐射学直到70年代方趋成熟,以其为理
The heat insulation and energy saving of buildings in the North and the insulation and cooling of buildings in South China are one of the problems that have plagued the construction industry for a long time. However, an important material condition for solving the thermal insulation problem is to find an ideal thermal insulation material. The application and development of thermal insulation materials are closely related to the development of heat transfer. Thermal theories and thermal radiation in heat transfer are the theoretical basis for adiabatic heat. The history of thermal conduction has been more than 200 years ago, and it is not surprising that porous thermal insulation materials based on the theory have been widely used; thermal radiation studies have been mature until the 1970s.