▎ 摘　　要

NOVELTY - Interfacial polymerization of hollow fiber organic filter membrane into polyamide membrane, comprises doping hydrophilic modified particles into molten liquid paraffin to form plugging solution, taking hollow fiber organic filter membrane with one end sealed as supporting membrane, sealing outer surface of organic filter membrane, continuing to inject plugging solution into organic filter membrane through other end to fill organic filter membrane pores with liquid paraffin, drying, and immersing in aqueous phase solution containing polyamine, removing the excess solution on the surface of the organic filter membrane after taking it out; immersing organic filter membrane in a constant temperature polyacyl chloride oil phase solution, immersing the organic filter membrane formed with amide groups in a non-polar solvent at 80-100℃ for 10-200 minutes to remove the liquid paraffin to form a hollow fiber polyamide membrane. USE - The method is useful for interfacial polymerization of hollow fiber organic filter membrane into polyamide membrane. ADVANTAGE - The method improves the hydrophilic of the supporting film in the process of coating polyamine, and adjusts the film hydrophilicity at any time by the amount of nano-modified particles in the lifting hole liquid paraffin. The method ensures that the support film does not have hydrophillicity improvement in application for many times, so as to reduce the production cost of the film production enterprise, and has obvious application potential. DETAILED DESCRIPTION - Interfacial polymerization of hollow fiber organic filter membrane into polyamide membrane, comprises doping the hydrophilic modified particles into molten liquid paraffin to form a plugging solution, where the concentration of the hydrophilic modified particles in the plugging liquid is 5-20 wt.%, taking the hollow fiber organic filter membrane with one end sealed as the supporting membrane, sealing the outer surface of the organic filter membrane, continuing to inject the plugging solution into the organic filter membrane through the other end to fill the organic filter membrane pores with liquid paraffin, and drying at room temperature curing, removing the outer surface seal of the organic filter membrane, and immersing in the aqueous phase solution containing polyamine for 30-500 seconds, removing the excess solution on the surface of the organic filter membrane after taking it out; once again, immersing the organic filter membrane in a constant temperature polyacyl chloride oil phase solution, and the immersion time is 10-120 seconds so that polyamines and polyacyl chlorides interfacially polymerize to form amide groups; immersing the organic filter membrane formed with amide groups in a non-polar solvent at 80-100℃ for 10-200 minutes to remove the liquid paraffin to form a hollow fiber polyamide membrane.