Prediction of Changes in the Degree of Crystallinity and Amorphism of MA-41P and MK-40 Membranes

This study presents data from the X-ray diffraction analysis of air-dried, water-saturated, and working samples of MA-41P and MK-40 membranes, obtained during the electrodeionization separation of technological solutions from electroplating processes containing metal ions. The analysis reveals a decrease in the crystallinity of the membrane samples after water saturation and during operation, which affects the electrodeionization process of separating technological solutions from electroplating processes containing metal ions. The diffraction patterns are analyzed for peak band intensities. A decrease in the peak intensity on the diffraction patterns of the working membrane samples, compared to the air-dried samples, indicates a structural change in the water within the membrane, where molecular water transitions to weakly bound “liquid water.”