METHOD FOR MANUFACTURING HOLLW FIBER MEMBRANE

摘要

PURPOSE: A method for manufacturing hollow fiber membrane is provided to recycle ionic liquid used as coagulant and washing solution. CONSTITUTION: A manufacturing method of the hollow fiber membrane comprises next processes: a process of the polymer resin being dissolved in the ionic liquid and manufacturing the polymer resin solution; a process forming the polymer resin solution of the hollow structure the membranous polymers resinous solution is discharged through the spinneret; and a process forming the porous structure contacts to coagulant the polymer resin solution discharged. The membranous polymers resin is included in the membranous polymers resinous solution to 10 ~ 50 weight%. The membranous polymers resin polyethersulfone, and polysulfone or the polyvinylidene difluoride.