Aerogel and manufacturing method thereof

    公开(公告)号:US10377637B2

    公开(公告)日:2019-08-13

    申请号:US15327839

    申请日:2015-11-05

    摘要: In a method for manufacturing an aerogel, an acid is added to a first aqueous high-molar-ratio silicate solution that includes silica particles having a mean particle diameter of from 1 nm to 10 nm and that is alkaline, to produce a gel. The gel is subjected to a dehydration condensation to obtain a hydrogel. The hydrogel is converted into a hydrophobized gel. Then, the hydrophobized gel is dried. According to the method, an aerogel having a pore volume of from 3.00 cc/g to 10 cc/g, a mean pore diameter of from 10 nm to 68 nm, and a specific surface area of from 200 m2/g to 475 m2/g can be prepared.

    XEROGEL PRODUCTION METHOD
    7.
    发明申请
    XEROGEL PRODUCTION METHOD 有权
    XEROGEL生产方法

    公开(公告)号:US20150360961A1

    公开(公告)日:2015-12-17

    申请号:US14734400

    申请日:2015-06-09

    IPC分类号: C01B33/16

    CPC分类号: C01B33/16 B01J13/0091

    摘要: A xerogel production method includes: adding, to water glass, a basic silicic acid solution having a sol with a particle size between a particle size of the water glass and a particle size of colloidal silica, to acidify and solate the water glass, and polycondensing the solated water glass at 20° C. to 90° C., to obtain a hydrogel; growing the hydrogel by leaving the hydrogel for a certain time period at a constant temperature; hydrophobizing the hydrogel; and drying the hydrophobized hydrogel.

    摘要翻译: 干凝胶的制造方法包括:向水玻璃添加具有粒径在水玻璃的粒径和胶体二氧化硅的粒径之间的溶胶的碱性硅酸溶液,以使水玻璃酸化和溶解,以及缩聚 将溶胶水玻璃在20℃至90℃下,得到水凝胶; 通过在恒定温度下离开水凝胶一段时间来生长水凝胶; 疏水化水凝胶; 并干燥疏水化水凝胶。

    Xerogel production method
    10.
    发明授权

    公开(公告)号:US09663376B2

    公开(公告)日:2017-05-30

    申请号:US14734400

    申请日:2015-06-09

    IPC分类号: C01B33/16 B01J13/00

    CPC分类号: C01B33/16 B01J13/0091

    摘要: A xerogel production method includes: adding, to water glass, a basic silicic acid solution having a sol with a particle size between a particle size of the water glass and a particle size of colloidal silica, to acidify and solate the water glass, and polycondensing the solated water glass at 20° C. to 90° C., to obtain a hydrogel; growing the hydrogel by leaving the hydrogel for a certain time period at a constant temperature; hydrophobizing the hydrogel; and drying the hydrophobized hydrogel.