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在单位时间、单位面积内,气体分离膜渗透过被分离气体的量与膜的渗透系数成正比、与膜厚度成反比。膜的渗透系数与膜材料的性质直接相关。为了寻求渗透系数大的膜材料,欧美各国和日本的膜材料科技人员做了大量的工作,开发出一系列性能优异的膜材料,诸如聚二甲基硅氧烷和聚碳酸酯的嵌段共聚物、聚二甲
In unit time, per unit area, the amount of gas separated by the gas permeation membrane is proportional to the membrane permeability coefficient, inversely proportional to the membrane thickness. The permeability coefficient of the membrane is directly related to the nature of the membrane material. In order to seek membrane materials with large permeation coefficient, a great deal of work has been done by membrane materials scientists in Europe and the United States and Japan to develop a series of excellent membrane materials such as block copolymerization of polydimethylsiloxane and polycarbonate Material, Poly dimethyl