Correlation between Structure of Porous Membranes and Mass Transfer

多孔膜结构与传质的相关性

• 批准号: 03650769
• 负责人: TANIGAKI Masataka
• 金额: $ 0.96万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650769/
• 关键词: Porous Membrane; Membrane Structure; Gas Permeation; Particle-Coagulated Porous Material; Bubble Point; Loop Model; Lattice Model; Computer Simulation; 物質透過; 膜引径; ハーゲン・ポアスイマ流れ; 分子拡散; クヌーセン拡散; 計算機シミュレ-ション; 膜孔径; ハ-ゲン・ポアズイエ流れ; クヌ-セン拡散

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.

1.海绵型多孔膜的结构与特性之间的相关性：1991年，实验测量了不同海绵型多孔膜的渗透压力和泡点。为了解释这些结果，一个新的环模型，更好地反映观察到的电子显微镜结构的构建。该模型成功地解释了渗透压力和泡点的同时存在，不同表面张力和接触角的液体的数据。然后，对环模型的三维化模型--格子模型进行了计算机模拟，成功地解释了实验观测到的实验渗透通量。2.颗粒凝聚多孔材料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。即使是完全不同的材料，泡点采用环模型，气体渗透采用格子模型，成功地解释了实验观测数据，从而有可能找到一种既符合多孔材料实际观测结构，又能解释不同材料特性的通用结构模型。