V. I. Vasilieva, E. E. Meshcheryakova, I. V. Falina, N. A. Kononenko, M. A. Brovkina, E. M. Akberova
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引用次数: 0
摘要
研究了不同配比的离子交换树脂和聚乙烯粘结剂组成的实验异相MK-40和MA-41膜的理化性能。结果表明，在0.01-1 M NaCl溶液中，阳离子交换膜的比电导率降低了3倍，阴离子交换膜的比电导率降低了2倍，离子交换树脂的含量从69%降低到55%。已经确定阴离子交换膜的扩散渗透率对其组成更为敏感，并且随着组成中离子交换树脂比例的增加而自然增加。通过计算离子交换膜的微非均质模型和扩展三线模型的输运结构参数，补充了标准接触孔隙法获得的非均质膜组成对其结构影响的信息。
Effect of Heterogeneous Ion-Exchange Membranes Composition on Their Structure and Transport Properties
The physicochemical properties of experimental heterogeneous MK-40 and MA-41 membranes with different ratios of ion-exchange resin and polyethylene binder in their composition have been studied. It is shown that the specific electrical conductivity in 0.01–1 M NaCl solution decreases triply for cation-exchange membranes and doubly for anion-exchange ones with a decrease in the content of ion-exchange resin in the membranes from 69 to 55%. It has been established that the diffusion permeability of anion-exchange membranes is more sensitive to their composition and naturally increases with an increase in the ion-exchange resin proportion in the composition. Information on the influence of the heterogeneous membrane composition on its structure obtained by the method of standard contact porosimetry is supplemented by the calculation of transport-structural parameters of the microheterogeneous and extended three-wire models of the ion-exchange membrane.
期刊介绍：
The journal Membranes and Membrane Technologies publishes original research articles and reviews devoted to scientific research and technological advancements in the field of membranes and membrane technologies, including the following main topics:novel membrane materials and creation of highly efficient polymeric and inorganic membranes;hybrid membranes, nanocomposites, and nanostructured membranes;aqueous and nonaqueous filtration processes (micro-, ultra-, and nanofiltration; reverse osmosis);gas separation;electromembrane processes and fuel cells;membrane pervaporation and membrane distillation;membrane catalysis and membrane reactors;water desalination and wastewater treatment;hybrid membrane processes;membrane sensors;membrane extraction and membrane emulsification;mathematical simulation of porous structures and membrane separation processes;membrane characterization;membrane technologies in industry (energy, mineral extraction, pharmaceutics and medicine, chemistry and petroleum chemistry, food industry, and others);membranes and protection of environment (“green chemistry”).The journal has been published in Russian already for several years, English translations of the content used to be integrated in the journal Petroleum Chemistry. This journal is a split off with additional topics.
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