▎ 摘　　要

NOVELTY - Method for preparing conductive polyethersulfone separation membrane, involves (a) heating styrene-maleic acid, distilled water and sodium hydroxide, stirring to form a styrene-maleic acid salt solution, adding the conductive nanoparticles and styrene-maleic acid salt solution to distilled water, drying to obtain the embedded conductive nanoparticles, and grinding the conductive nanoparticles, and (b) preparing a sodium hydroxide solution, placing styrene-maleic acid in the sodium hydroxide solution, collecting styrene-maleic acid sodium salt by cleaning, drying the collected styrene-maleic acid sodium salt, dissolving polyethersulfone, ground conductive nanoparticles, dried styrene-maleic acid sodium salt, polyethylene glycol, dimethylacetamide and distilled water to obtain a casting liquid, defoaming the casting liquid, coating on a glass plate or non-woven fabric, leaving still in air, placing into a coagulation bath for phase exchange, and washing the obtained composite membrane. USE - The method is useful for preparing conductive polyethersulfone separation membrane. ADVANTAGE - The method enhances the compatibility, improves uniform dispersion in the separation membrane, and the types and quantities of conductive particles in the separation membrane are enriched by introducing different salt ions, and effectively constructs complete electroosmotic path in the separation membrane, and the prepared separation membrane has excellent conductivity. DETAILED DESCRIPTION - Method for preparing conductive polyethersulfone separation membrane, involves (a) heating styrene-maleic acid with a molecular weight of 500-5000 and an acid anhydride content of 20-50 wt.%, distilled water and sodium hydroxide, stirring for 1-24 hours at 40-60degrees Celsius to form a uniform styrene-maleic acid salt solution, adding the conductive nanoparticles and styrene-maleic acid salt solution in a mass ratio of 1:0.11-0.8 in 50-250 ml distilled water for ultrasonic treatment, drying at 60-80degrees Celsiususing a vacuum drying oven to obtain the embedded conductive nanoparticles, and grinding the embedded conductive nanoparticles in a ball mill for 2-8 hours, and (b) preparing a sodium hydroxide solution with a concentration of 1-40 wt.%, placing styrene-maleic acid with a molecular weight of 100000-300000 in the sodium hydroxide solution for 1-24 hours, collecting styrene-maleic acid sodium salt by cleaning while suction filtration, drying the collected styrene-maleic acid sodium salt in a vacuum drying oven at 60-100degrees Celsius, dissolving polyethersulfone, ground conductive nanoparticles, dried styrene-maleic acid sodium salt, polyethylene glycol, dimethylacetamide and distilled water at 70-100degrees Celsius for 24-48 hours to obtain a uniform casting liquid, defoaming the casting liquid for 3-10 hours, coating on a glass plate or non-woven fabric with an automatic film scraper, leaving still in air for 0.5-10 minutes, placing into a coagulation bath for phase exchange to obtain a composite membrane, and washing the obtained composite membrane.