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    • 53. 发明申请
    • Solvent-Substitution Solvent Used in Aerogel Production, and Hydrophobised Aerogel Production Method Using Same
    • 用于气凝胶生产中的溶剂替代溶剂和使用其的疏水性气凝胶生产方法
    • US20150141532A1
    • 2015-05-21
    • US14398843
    • 2013-05-09
    • REMTECH CO., LTD.
    • Byoung-Hoon KimJeong-Kun YooJung-Ho HanRoshan Wagle
    • C01B33/155C01B33/158
    • C01B33/155C01B33/14C01B33/152C01B33/1585
    • Provided are a solvent-substitution solvent for producing a hydrophobized aerogel and a method for producing a hydrophobized aerogel. The solvent-substitution solvent includes pentanol in an amount of 41 wt % to 100 wt % and n-butanol in an amount of 0 wt % to 59 wt %. The method includes performing a solvent substitution process using the solvent-substitution solvent. If the solvent-substitution solvent is used for solvent substitution and/or hydrophobization in an aerogel production process, water (moisture) contained in a wet gel may be effectively substituted with the solvent-substitution solvent, and the solvent-substitution solvent may easily be collected at a high degree of purity and may be reused if necessary. Therefore, the rate of solvent loss may be minimized. In addition, if the solvent-substitution solvent is used for solvent substitution, a hydrophobized aerogel may be obtained without having to perform a hydrophobizing process using an additional hydrophobizing agent such as a silylating agent.
    • 提供用于制备疏水化气凝胶的溶剂置换溶剂和制备疏水化气凝胶的方法。 溶剂置换溶剂包括41重量%至100重量%的戊醇​​和0重量%至59重量%的正丁醇。 该方法包括使用溶剂置换溶剂进行溶剂置换过程。 如果在气凝胶制造方法中使用溶剂置换溶剂进行溶剂置换和/或疏水化,则可以用溶剂置换溶剂有效地取代湿凝胶中所含的水分(水分),溶剂置换溶剂容易 以高纯度收集,如果需要可以重复使用。 因此,可以使溶剂损失的速度最小化。 此外,如果使用溶剂置换溶剂进行溶剂置换,则可以不使用另外的疏水化剂如甲硅烷基化剂进行疏水化处理来获得疏水化气凝胶。
    • 54. 发明申请
    • METHOD OF PREPARING SILICA AEROGEL POWDER
    • 制备二氧化硅气泡粉的方法
    • US20120225003A1
    • 2012-09-06
    • US13099936
    • 2011-05-03
    • Young Chul JOUNGMyung Je RoeYoung Jong YooJong Chul ParkHee Jung ChoiMin Woo Kim
    • Young Chul JOUNGMyung Je RoeYoung Jong YooJong Chul ParkHee Jung ChoiMin Woo Kim
    • C01B33/158
    • C01B33/158C01B33/166
    • A method of preparing silica aero-gel powders having a short preparation time and stable preparation processes. In the method, the silica aerogel powders are generated by using a water glass solution, an inorganic acid, an organosilane compound and an organic solvent. The method includes dispersion-solution generating, gelating and solvent exchanging and drying. In the dispersion-solution generating, a dispersion solution is generated by dispersing the water glass solution and the organosilane compound in the organic solvent. In the gelating and solvent exchanging, silica hydrogel is generated by adding the inorganic acid to the dispersion solution and simultaneously performing gelating and solvent-exchanging. In the drying, the silica aerogel powders are generated by drying the silica hydro-gel.
    • 一种制备具有较短制备时间和稳定制备方法的二氧化硅气凝胶粉末的方法。 在该方法中,通过使用水玻璃溶液,无机酸,有机硅烷化合物和有机溶剂来生成二氧化硅气凝胶粉末。 该方法包括分散溶液产生,凝胶化和溶剂交换和干燥。 在分散液生成中,通过将水玻璃溶液和有机硅烷化合物分散在有机溶剂中而产生分散液。 在凝胶化和溶剂交换中,通过向分散液中加入无机酸,同时进行凝胶化和溶剂交换,生成二氧化硅水凝胶。 在干燥过程中,通过干燥二氧化硅水凝胶来生成二氧化硅气凝胶粉末。