Electrodialysis homogeneous membrane is a kind of membrane made of polymer material with ion exchange function, and its internal ion exchange groups are uniformly distributed in the whole membrane. From the microstructure, there is no obvious phase interface between the polymer matrix and the ion exchange groups in the membrane, forming a highly uniform system. It is usually divided into homogeneous cation membrane and homogeneous anion membrane, both widely applied in modern homogeneous membrane electrodialysis equipment for precision ion separation.
Due to the uniform distribution and high content of ion exchange groups, the homogeneous ion exchange membrane has a high ion exchange capacity, which can effectively carry out the exchange reaction with the ions in the solution, and can be used for efficient ion separation and enrichment.
Good selectivity for different ions, based on the differences in charge, size and hydration radius of ions, it can preferentially select specific ions to pass through the membrane, and realize accurate ion separation in mixed ion system.
Uniform structure, low resistance to ion transport within the membrane, low membrane resistance, which can reduce power consumption and improve energy efficiency in electrochemical processes such as electrodialysis.
Stable in a wide pH range and a variety of chemical environments, not easy to chemical degradation or structural damage, resistant to strong acids, strong bases and a variety of organic solvents, suitable for dealing with a variety of complex chemical systems.
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