FORWARD OSMOSIS MEMBRANES AND METHOD FOR FABRICATING THE SAME

• Main Authors: SEO SUN KEUN, YU YOUNG BEOM, LEE SEOCK HEON
• Format: Patent
• Language: English
• Published: 19.01.2012
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SEPARATION; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

Disclosed are a forward osmosis membrane capable of ensuring resistance to microorganisms, improving water flux by forward osmosis, and minimizing reverse solute flux by maximizing tortuosity of the membrane, and a method for fabricating the same. The disclosed method for fabricating a forward osmosis membrane includes: preparing a filler material including a non-cellulose polymer, an organic solvent for dissolving the non-cellulose polymer, and a pore-forming agent for inducing pore formation in the non-cellulose polymer; coating the filler material on an osmosis membrane backing; and immersing the osmosis membrane backing coated with the filler material in water, so that the organic solvent and the pore-forming agent are evaporated, and pores are formed in the non-cellulose polymer as the non-cellulose polymer is solidified.