EVOH-based membrane casting solution and method for preparing hydrophilic porous filter membrane

The invention discloses an EVOH-based membrane casting solution and a method for preparing a hydrophilic porous filter membrane. The membrane casting solution consists of EVOH, a cross-linking agent and a solvent. The hydrophilic polymer EVOH is used as a main body, and the hydrophilic polymer EVOH is reinforced through an in-situ cross-linking reaction, so that on one hand, the hydrophilicity of the surface of the filtering membrane is improved, and on the other hand, the hydrophilic polymer EVOH can stably exist due to a cross-linking structure of the hydrophilic polymer EVOH and main body macromolecules. The composite structure is prepared by coating the EVOH coating on the surface of the filter membrane, so that the surface anti-pollution performance of the filter membrane can be improved. According to the method of some examples, the problem of insufficient membrane toughness caused by high dosage of EVOH is solved, and the application field of EVOH is expanded. 本发明公开了基于EVOH的铸膜液和制备亲水多孔滤膜的方法，铸膜液由EVOH、交联剂和