METHOD FOR MANUFACTURING METAL FILTER USING TITANATE NANOTUBE FILM

PURPOSE: A manufacturing method of metal filter is provided to obtain a high performance filter having an excellent wear resistance by coating a titanate nanotube film on the metal filter and reducing pore size using repetitive self assembly method. CONSTITUTION: A manufacturing method of metal filter comprises the following steps: putting a metal mesh into PEI aqueous solution for a certain period of time in order the surface of the metal mesh to have positive potential and washing with distilled water (S110, S120); putting the metal mesh having positive potential to TiNT aqueous solution for a certain period of time for TiNT film coating and washing with distilled water (S130, S140); putting the metal mesh the TiNT film which is coated to PDDA aqueous solution for a certain period of time and washing with distilled water (S150, S160). [Reference numerals] (AA) Start; (BB) End; (S110) Putting a metal mesh into PEI aqueous solution; (S120,S140,S160) Washing in DI water; (S130) Putting in TiNT aqueous solution; (S150) Putting in PDDA aqueous solution; (S180) Ti or A1 depositing