Method of Preparing Membrane Using Active Layer Prepared by Support-free Interfacial Polymerization in Free Surface

摘要

The present invention relates to a method for preparing a separator using an active layer prepared by interfacial polymerization at a free interface without a support and more particularly to a method for preparing a polymer active layer by spontaneously reacting an organic monomer at an interface between an aqueous solution and an organic solvent, And a method of producing a reverse osmosis membrane free from the support characteristics to be combined. The present invention can produce a reverse osmosis membrane having various supports other than the conventional polysulfone porous support by the method of preparing the interfacially polymerized membrane having the active layer through the interfacial polymerization without the support according to the present invention, The application limit of reverse osmosis membrane due to water permeability can be extended. In addition, the active layer can be controlled more precisely than conventional methods in the production of the active layer, and the present invention can be effectively applied to improving the performance such as introduction of nanoparticles.