Correlation between Structure of Porous Membranes and Mass Transfer

1.海绵型多孔膜结构与性能的相关性：1991年，对不同海绵型多孔膜的渗透压力和泡点进行了实验测定。为了解释这些结果，我们建立了一个新的环模型，它更好地反映了电子显微镜观察到的结构。该模型成功地解释了具有不同表面张力和接触角的液体的穿透压力和泡点同时存在的现象。2.颗粒凝聚多孔材料的结构与气体渗透特性的相关性：1992年，对颗粒凝聚多孔材料进行了与前一年类似的工作。即使对于完全不同的材料，使用泡点的环模型和气体渗透的晶格模型也成功地解释了观察到的实验数据，从而有可能找到一个与多孔材料的实际观察结构相一致的通用结构模型，并能够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.