| abstract |
The invention relates to a high-flux antibacterial polyacrylonitrile-based seawater extraction uranium-seawater desalination co-production membrane and a preparation method thereof. Aiming at the actual demand for the application of seawater uranium extraction-seawater desalination co-production, the present invention uses polyacrylonitrile, chitosan and amidoxime-modified polyacrylonitrile as raw materials; by adjusting the conversion rate of polyacrylonitrile, the modification of amidoxime can be fully utilized The connection effect of the polyacrylonitrile powder in the mixing system of the casting liquid can be achieved by the synergistic effect between the components; the ratio of the raw materials for the casting film and the film forming process are optimized, and the mechanical properties, flux and hydrophilicity of the membrane material are significantly improved. , antibacterial properties, uranium adsorption properties. Further, according to the actual interaction characteristics of seawater and membrane materials, a composite co-production membrane composed of top membrane, sandwich membrane and bottom membrane was prepared to improve the overall performance of the membrane material for uranium extraction-seawater desalination. |