Method for facilitating interfacial polymerization of hollow fiber organic filter membrane into polyamide membrane

• Main Authors: ZHOU LANFENG, WEN HAIMENG, LI SHENGLAN
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

According to the method, hydrophilic nano modified particles are doped in liquid paraffin, and the hollow fiber organic filter membrane is subjected to interfacial polymerization to form the polyamide membrane by using paraffin phase state transformation and the characteristics of the hollow fiber organic filter membrane in a mode of blocking holes by using the paraffin, so that the hollow fiber organic filter membrane can be prepared into the polyamide membrane. The hydrophilic property of the support membrane in the process of coating the polyamine is improved, the hydrophilic property of the membrane can be adjusted at any time through the amount of the nano modified particles in the porous liquid paraffin, and the subsequent paraffin removal can ensure that the support membrane does not have hydrophilic improvement in multiple applications, so that the production cost of a membrane production enterprise is reduced, and the production efficiency of the membrane production enterprise is improved. The applic