METHODS FOR CONTROLLING PORE MORPHOLOGY IN AEROGELS USING ELECTRIC FIELDS AND PRODUCTS THEREOF
    10.
    发明申请
    METHODS FOR CONTROLLING PORE MORPHOLOGY IN AEROGELS USING ELECTRIC FIELDS AND PRODUCTS THEREOF 有权
    使用电场及其产品控制空间形态的方法

    公开(公告)号:US20120052511A1

    公开(公告)日:2012-03-01

    申请号:US13180440

    申请日:2011-07-11

    摘要: In one embodiment, an aerogel or xerogel includes column structures of a material having minor pores therein and major pores devoid of the material positioned between the column structures, where longitudinal axes of the major pores are substantially parallel to one another. In another embodiment, a method includes heating a sol including aerogel or xerogel precursor materials to cause gelation thereof to form an aerogel or xerogel and exposing the heated sol to an electric field, wherein the electric field causes orientation of a microstructure of the sol during gelation, which is retained by the aerogel or xerogel. In one approach, an aerogel has elongated pores extending between a material arranged in column structures having structural characteristics of being formed from a sol exposed to an electric field that causes orientation of a microstructure of the sol during gelation which is retained by the elongated pores of the aerogel.

    摘要翻译: 在一个实施方案中,气凝胶或干凝胶包括其中具有小孔的材料的柱结构,以及没有位于柱结构之间的材料的主要孔,其中主孔的纵轴基本上彼此平行。 在另一个实施方案中,一种方法包括加热包括气凝胶或干凝胶前体材料的溶胶,使其凝胶形成气凝胶或干凝胶,并将加热的溶胶暴露于电场,其中电场引起凝胶化过程中溶胶微结构的取向 ,由气凝胶或干凝胶保留。 在一种方法中,气凝胶具有延伸的细孔,所述孔在布置在柱结构中的材料之间延伸,所述材料具有由暴露于电场的溶胶形成的结构特征,所述溶胶引起凝胶化期间溶胶的微结构的取向, 气凝胶