Coating slurry of electrolyzed water composite membrane and preparation method of composite membrane

• Main Authors: ZHUANG ZHI, CHENG YUE, HAN WEN, LIU MIAOMIAO, WU HUIKANG, AO BEI, KE XI, LIU QIANQIAN
• Format: Patent
• Language: Chinese; English
• Published: 10.03.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY

The invention discloses a preparation method of coating slurry for an alkaline electrolyzed water composite membrane and a preparation method of the composite membrane, the preparation method of the coating slurry comprises the following steps: providing a drying room for preparing the coating slurry, and the humidity of the drying room is not higher than 40%; and preparing the coating slurry in the drying room. The preparation method of the composite membrane comprises the following steps: providing a base membrane; preparing coating slurry for the alkaline electrolyzed water composite film; coating the surface of the base film with the coating slurry to form a wet film; and drying the wet film to form the composite film. The preparation environment humidity of the coating slurry is controlled to improve the dispersion uniformity of the coating slurry, the pore size and distribution of the membrane surface are controlled and adjusted through the standing temperature and time during pre-evaporation to form a