COMPOSITE SEMIPERMEABLE MEMBRANE AND PROCESS FOR PRODUCTION THEREOF
    8.
    发明公开
    COMPOSITE SEMIPERMEABLE MEMBRANE AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    复合半透膜膜及其生产方法

    公开(公告)号:EP2540385A1

    公开(公告)日:2013-01-02

    申请号:EP11747242.3

    申请日:2011-02-17

    IPC分类号: B01D71/56 B01D69/12 C08G69/26

    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质支撑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〜 多孔性支撑层的长度为2μm〜5μm的复合半透膜或在多孔性支撑层上具有多官能胺与多官能酰卤缩聚而成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 (A)多官能胺与多官能酰卤在40℃〜70℃下接触,接着(B)在70℃〜150℃下进行热处理的界面缩聚的工序。 根据本发明的复合半透膜具有高除硼性能和高透水性能。