理论分析了疏水性多孔膜气体渗透原理和膜各种结构特征参数的关系,并建立了计算气体渗透通量的模型方程,以及确定多孔膜曲折因子等结构参数的方法.通过气体渗透实验和建立的模型,对6种聚四氟乙烯(PTFE)多孔平板膜的曲折因子等结构参数进行了测试计算,并根据测得的膜孔隙率结果,比较了曲折因子与孔隙率的关系.对不同气体透过不同结构参数的多孔膜的传递形式进行了讨论.
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