LIQUID COMPOSITION FOR FORMING SILICA POROUS FILM AND SILICA POROUS FILM FORMED FROM SUCH LIQUID COMPOSITION
    2.
    发明公开
    LIQUID COMPOSITION FOR FORMING SILICA POROUS FILM AND SILICA POROUS FILM FORMED FROM SUCH LIQUID COMPOSITION 审中-公开
    FLÜSSIGEZUSAMMENSETZUNG ZUR HERSTELLUNG EINESPORÖSEN硅胶片UND AUS EINER DERARTIGENFLÜSSIGENZUSAMMENSETZUNG HERGESTELLTERPORÖSER硅胶片

    公开(公告)号:EP3118159A4

    公开(公告)日:2017-08-30

    申请号:EP15761609

    申请日:2015-03-11

    IPC分类号: C01B33/12 B01D71/02 C01B33/14

    摘要: A liquid composition for forming a silica porous film of the invention is prepared by mixing a hydrolyzate of tetramethoxysilane or tetraethoxysilane as a silicon alkoxide with a silica sol in which fumed silica particles having primary particles having a mean particle diameter of 40 nm or less and secondary particles having a mean particle diameter of 20 nm to 400 nm, that is greater than the mean particle diameter of the primary particles, are dispersed in a liquid medium, in which the mass ratio (A/B) of the SiO 2 content (B) of the silica sol to the SiO 2 content (A) in the hydrolyzate is in a range of 1/99 to 60/40.

    摘要翻译: 本发明的二氧化硅多孔质膜形成用液状组合物通过将作为硅醇盐的四甲氧基硅烷或四乙氧基硅烷的水解物,与平均粒径为40nm以下的一次粒子的二氧化硅粒子和二次粒子 将平均粒径为20nm〜400nm的比一次粒子的平均粒径大的粒子分散在SiO 2含量(B)的质量比(A / B) )的硅溶胶与水解产物中的SiO 2含量(A)之比在1/99至60/40的范围内。