▎ 摘　　要

NOVELTY - Preparing tubular membrane involves configuring filter separation film liquid at 50-90℃, mixing polymer material, additives and solvents, stirring, dissolving, filtering and defoaming to obtain filter separation layer casting solution; spinning filter separation film liquid on core rod using electrostatic spinning method to obtain filter separator; melting thermoplastic resin in screw extruder, melting and spraying on outer surface of filter separated layer, cooling to obtain support layer; and thermally shaping filter-separated layer/supporting layer. USE - Method for preparing tubular membrane used in water treatment field. ADVANTAGE - The method enables to prepare tubular membrane with large porosity, high flux, and easy control aperture; simple, and easy to control process condition; good for reverse washing of membrane; reduce polarization concentration, and avoid pollution on film surface.