| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polymeric water treatment membrane that can produce the polymeric water treatment membrane homogeneous and excellent in mechanical strength, water permeability, etc., by a simple and easy method.SOLUTION: A method for producing a polymeric water treatment membrane includes preparing a resin solution of substantially a single material, ejecting the resin solution into the air from a die having an ejection port, and then ejecting the resin solution within a range of 30-60° to the water surface of a non-solvent to form a hollow fiber membrane having self-supporting structure with an outer diameter of 3.6-10 mm and an SDR value of 5.8-34 and having a pure water permeability of 100L/mhr atm or more. |
