HOLLOW FIBER MEMBRANE HAVING SUPPORTING MATERIAL FOR REINFORCEMENT, PREPARATION THEREOF AND SPINNERET FOR PREPARING THE SAME

摘要

Disclosed are a hollow fiber membrane having reinforcing support, preparation thereof, and spinneret for preparing the same. The hollow fiber membrane includes hollow formed by internal coagulating solution and reinforcing supports for supporting a separate filter layer, which is the outer surface. The spinneret for preparing the hollow fiber membrane includes a spun undiluted solution nozzle, an internal coagulating solution nozzle and a reinforcing support nozzle. The hollow fiber membrane is prepared by simultaneously discharging spun undiluted solution, internal coagulating solution and reinforcing support from the spinneret to external coagulating solution.The hollow fiber membrane has excellent intensity as having the reinforcing support and can control the inner pore size and the diameter of the membrane as using internal coagulating solution. Moreover, the hollow fiber membrane can increase spinning speed, reduce the diameter of the membrane, and save the manufacturing cost as using the reinforcing support, which is yarn of various kinds.