我国传统的保温材料是以提高气相空隙率,降低导热系数和传导传热为主。纤维类保温材料在使用环境中要使对流传热和辐射传热升高,必须有较厚的履层;型材类无机保温材料要拼装施工,存在接缝多、影响美观、防水性差、使用寿命短等缺点。上世纪九十年代,美国国家航空航天局(NASA)的科技人 China’s traditional insulation material is to improve the gas phase porosity, reduce thermal conductivity and conduction heat-based. Fiber insulation materials in the use of the environment to make the convection heat transfer and radiation heat transfer, there must be a thick layer; profile inorganic insulation materials to be assembled construction, there are many seams, affecting the appearance, poor water resistance, service life Short and other shortcomings. Nineties of last century, the United States National Aeronautics and Space Administration (NASA) technology