The Trade-off effect of separation membranes and its breakthrough research progress
Based on literature research,the Trade-off effect of membrane materials between water flux and pollutant retention efficiency was analyzed,and the methods of breaking through the Trade-off effect of separated membranes at home and abroad in recent years were summarized.The results show that mem-brane surface grafting zwitterion technology,non-solvo-induced phase separation technology,structure modification technology,physical blending technology,surface coating technology can break through the technical bottleneck.The physical blending technology shows very excellent results,and the technical method is relatively simple,no need to update the equipment,easy to implement,the prepared membrane material has good mechanical properties and water production capacity.This review provides a new techni-cal idea for the development of efficient separation membranes,and provides a useful technical reference for the application and popularization of membrane technology.
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