Process for producing hydrophilic polymer membranes
    1.
    发明授权
    Process for producing hydrophilic polymer membranes 失效
    生产亲水性聚合物膜的方法

    公开(公告)号:US5356936A

    公开(公告)日:1994-10-18

    申请号:US128289

    申请日:1993-09-28

    摘要: Hydrophilicity of hydrophilic polymers, in the form of heat-crosslinked cings on porous membranes, is increased by exposure to an oxygen plasma, preferably for about 60 seconds. The plasma is generated at an oxygen gas pressure of about 1.5 Torrs in a chamber subjected to radio frequency electromagnetic radiation with a power of 25-100 watts. Such highly hydrophilic membranes have increased efficiency and durability when used as ultrafiltration membranes for separating hydrophobic and hydrophilic materials, such as smoke-air and oil-water mixtures.

    摘要翻译: 通过暴露于氧等离子体,优选约60秒,增加多孔膜上的热交联涂层形式的亲水性聚合物的亲水性。 在经过射频电磁辐射的室中,等离子体在约1.5托的氧气压力下产生,功率为25-100瓦。 当用作用于分离疏水和亲水材料(例如烟雾 - 空气和油 - 水混合物)的超滤膜时,这种高度亲水的膜具有提高的效率和耐久性。