Membrane design for removal of environmental pollutant from waste water by plasma graft filling polymerization method.

精细型膜的概念用于设计：用于蒸汽渗透和渗透蒸发的膜。填充型膜由两种材料组成：多孔基底和填充基底孔隙的填充聚合物。由于溶解度的差异，澄清聚合物表现出选择渗透性，而多孔基底基质由于其机械强度而抑制填充聚合物的膨胀。这些类型的膜显示出良好的分离性能的液体或蒸汽混合物。当填充聚合物的溶解度，抑制膜溶胀的效果，由于基板和溶剂在填充聚合物中的扩散率可以定性预测模型模拟，填充型膜的概念和预测方法，使我们能够选择一个合适的膜材料的分离混合物。先前已经开发了一个模型来计算溶剂通过精细型膜的渗透速率。该模型成功地估计了pe 关于我们 在没有任何可调参数的情况下，有机物通过橡胶填充型膜的渗透性，然而，预测值与实验值有些偏差。该偏差来自橡胶态聚合物的溶解度预测，而玻璃态聚合物的扩散率预测不能用以前使用的自由体积理论来估计。本文用GCLF-EOS模型预测了溶剂的溶解度，并与以前使用的CRAC-FV模型进行了比较。此外，预测模型扩展到玻璃态聚合物的情况下，使用修改后的自由体积模型，我们提出了一个玻璃态聚合物。对于所研究的各种聚合物体系，GCLF-EOS模型提供了更好的准确性，这归因于过量体积对溶解度的影响的正确预测。利用该模型对玻璃态聚合物中的扩散系数进行了预测，计算结果与实验结果吻合较好。通过填充型丙烯酸酯或甲基丙烯酸酯膜的蒸汽渗透实验测量了苯、甲苯和甲苯的通量，该方法的预测结果与蒸汽渗透实验吻合良好。少

The concept of a fining-type membrane is used to design: a membrane for vapor permeation and pervaporation. The filling-type membrane is composed of two materials : the porous substrate and the filling polymer that fills the pores of the substrate. The fining polymer exhibits permselectivity due to the solubility difference, and the porous substrate matrix suppress the swelling of the filling polymer due to its mechanical strength. These types of membrane showed good separation performances for liquid or vapor mixtures. When the filling polymer solubility, suppression effect of membrane swelling due to the substrate and solvent diffusivity in the filling polymer can be qualitatively predicted by model simulation, filling type membrane concept and the prediction method enable us to choose a suitable membrane material for a separation mixture. A model has been previously developed to calculate solvent permeation rate through the fining-type membrane. This model succeeded in estimating pe … More rmeability of organics through rubbery filling-type membranes without any adjustable parameters, however, the prediction somewhat deviated from experimental values. The deviation came from solubility prediction for rubbery polymers, and diffusivity prediction for glassy polymers cannot be estimated by the Free-Volume Theory previously used. In this study, solvent solubility is predicted by the GCLF-EOS model, and compared with the previously used UNIFAC-FV model. Also, the prediction model was extended to glassy polymer case using a modified Free Volume model we are proposing for a glassy polymer. For various polymer systems studied, the GCLF-EOS model provides better accuracy, and this is attributed to the correct prediction of the effect of excess volume on solubility. The diffusivity estimation in glassy polymer was predicted using the model proposed, and the calculation well agreed with experimental results. The flux of benzene, toluene and ethylbenzene is measured by vapor permeation experiments through filling-type acrylate or methacrylate membranes, and the prediction from this approach agrees well with the vapor permeation experiments. Less