Correlation between Structure of Porous Membranes and Mass Transfer

1.海绵状多孔膜结构与特性的相关性：1991年，实验测量了不同海绵状多孔膜的渗透压力和气泡点。为了解释这些结果，建立了一个新的环路模型，该模型能更好地反映电子显微镜观察到的结构。该模型成功地解释了不同表面张力和接触角液体的穿透压力和气泡点同时存在的数据。然后对晶格模型进行了计算机模拟，该模型是环模型的三维模型，成功地解释了实验观测到的渗透通量。颗粒凝固多孔材料的结构与气体渗透特性的关系：1992年，对颗粒凝固多孔材料进行了与前一年类似的工作。即使在完全不同的材料下，气泡点的环模型和气体渗透的晶格模型都能很好地解释实验数据。通过这些工作，有可能找到一个符合实际观察到的多孔材料结构的通用结构模型，并可以解释不同的材料特性。

1.Correlation between structure and characteristics of sponge-type porous membranes : In 1991, the penetration pressure and bubble points for different sponge-type porous membranes were experimentally measured. To explain these results, a new loop-model which reflect better the structure observed electron microscopy was constructed. This model successfully explained the simultaneous existence of the penetrating pressure and the bubble points, data for liquids with different surface tension and contact angles. Then the computer simulation for the lattice model, which is the three-dimentionalized model of the loop model successfully explained the experimental permeation flux observed experimentally.2.Correlation between structure and gas permeation characteristics of particle-coagulated porous materials : In 1992, similar work as the year before was carried out for particle-coagulated porous materials. Even with completely differentdifferent materials, the use of loop model for bubble points and lattice model for gas permeation successfully explained the observed experimental data.With these works, it was possible to find an universal structure model which is in accordance with the actually observed structure of porous materials and can explain the different material characteristics.