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    • 41. 发明授权
    • Method and device for producing aerogels
    • 生产气凝胶的方法和装置
    • US06656527B1
    • 2003-12-02
    • US09762003
    • 2002-07-03
    • Thomas GessnerE. Stefan SchulzThoralf Winkler
    • Thomas GessnerE. Stefan SchulzThoralf Winkler
    • B05D302
    • H01L21/02126C01B33/1585H01L21/02203H01L21/02216H01L21/02282H01L21/31695
    • A method of producing an aerogel layer on a substrate is described. A precursor mixture is provided by mixing at least one material selected from the group consisting of silicates, metal alcolates, aluminates and borates with a solvent. The precursor mixture is used to form a lyosol. The precursor mixture or the lyosol formed therefrom is then applied to the substrate wherein a layer of the lyosol is formed on the substrate. A gel is formed from the lyosol by chemical conversion at a temperature at which the solvent is present in a liquid state. At a pressure between 0.5-2.0 torr the ambient temperature is reduced by about 3-70k below the point at which the solvent is converted into a solid state. The solvent is then converted into a gaseous state in a drying chamber while reducing the pressure of the solvent below the triple point and removing solvent from the gel layer.
    • 描述了在基板上制造气凝胶层的方法。 通过将选自硅酸盐,金属醇酸盐,铝酸盐和硼酸盐的至少一种材料与溶剂混合来提供前体混合物。 前体混合物用于形成溶胶。 然后将前体混合物或由其形成的溶菌液施加到基底上,其中在基底上形成溶胶液层。 在溶剂以液态存在的温度下通过化学转化从溶胶中形成凝胶。 在0.5-2.0托之间的压力下,环境温度比溶剂转化成固态的点低约3-70k。 然后将溶剂在干燥室中转化为气态,同时将溶剂的压力降低到三重点以下,并从凝胶层除去溶剂。