Composite membranes
    1.
    发明授权
    Composite membranes 失效
    复合膜

    公开(公告)号:US5376442A

    公开(公告)日:1994-12-27

    申请号:US37712

    申请日:1993-03-24

    摘要: A composite membrane comprises an inorganic support having interstices and porous inorganic films of sintered non-metallic particles carried by the support and bridging the interstices thereof. The support is preferably a woven metal mesh, with the films substantially coplanar with the support. The films may be formed by applying a suspenion of refractory particles in a polymer solution to bridge the interstices of the support, and heating the films to partly sinter the particles. Since the films are in compression at ambient temperature, any cracks that may be formed by damage to the composite membrane tend not to propagate.

    摘要翻译: 复合膜包括具有间隙的无机载体和由载体承载并桥接其间隙的烧结非金属颗粒的多孔无机膜。 载体优选为编织金属网,其中膜与载体基本上共面。 可以通过将聚合物溶液中的耐火颗粒悬浮液悬浮以支撑载体的间隙,并加热膜以部分地烧结颗粒来形成膜。 由于膜在环境温度下被压缩,所以可能通过损坏复合膜形成的任何裂纹都不会传播。

    Porous films and method of forming them
    5.
    发明授权
    Porous films and method of forming them 失效
    多孔膜及其形成方法

    公开(公告)号:US4687551A

    公开(公告)日:1987-08-18

    申请号:US786334

    申请日:1985-10-10

    摘要: An anodic aluminum oxide film (12) has a system of larger pores (14) extending in from one face (16) and interconnecting with a system of smaller pores (24) extending in from the other face (26). The film is made by anodizing an aluminum metal substrate, then reducing the applied voltage at a rate to permit partial or complete recovery of the oxide film, either continuously or incrementally in small steps down to a level preferably below 3 V, and separating the oxide film from the substrate.

    摘要翻译: 阳极氧化铝膜(12)具有从一个面(16)延伸并且与从另一个面(26)延伸的较小孔(24)的系统相互连接的较大孔(14)的系统。 该膜通过阳极氧化铝金属基底制成,然后以允许氧化膜部分或完全回收的速率降低施加的电压,连续或递增地以小的步骤降至优选低于3V的水平,并分离氧化物 薄膜从基材。