COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD OF PRODUCING THE SAME
    4.
    发明申请
    COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD OF PRODUCING THE SAME 审中-公开
    复合可切割膜及其制造方法

    公开(公告)号:US20120305473A1

    公开(公告)日:2012-12-06

    申请号:US13522217

    申请日:2011-02-17

    IPC分类号: B01D71/56 B05D3/10 B01D69/12

    摘要: Provided is a composite semipermeable membrane having a polyamide separation-functional layer on a porous support layer, wherein the polyamide separation-functional layer has a yellow index of 10 to 40, and the actual length of the polyamide separation-functional layer per 1 μm-length of the porous support layer is from 2 μm to 5 μm, or a composite semipermeable membrane having on a porous support layer a polyamide separation-functional layer prepared by polycondensation of polyfunctional amines with polyfunctional acid halides, wherein the polyamide separation-functional layer is formed by the steps of (A) interfacial polycondensation in which polyfunctional amines and polyfunctional acid halides are brought into contact at 40° C. to 70° C. and subsequent (B) heat treatment at 70° C. to 150° C. The composite semipermeable membrane according to the present invention has high boron removal performance and high water permeation performance.

    摘要翻译: 本发明提供一种在多孔载体层上具有聚酰胺分离功能层的复合半透膜,其中聚酰胺分离功能层的黄色指数为10〜40,聚酰胺分离功能层的实际长度为1μm〜 多孔支撑层的长度为2μm〜5μm,或者在多孔载体层上具有通过多官能胺与多官能酰基卤化物缩聚制备的聚酰胺分离功能层的复合半透膜,其中聚酰胺分离功能层为 通过以下步骤形成:(A)界面缩聚,其中多官能胺和多官能酰卤在40℃至70℃下接触,随后(B)在70℃至150℃下进行热处理。 根据本发明的复合半透膜具有高的脱硼性能和高的透水性能。