公开(公告)号：US10143974B2

公开(公告)日：2018-12-04

申请号：US15119305

申请日：2014-02-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seockheon Lee ,  Soon Bum Kwon ,  Jung-Hyun Lee ,  Jong Suk Lee

IPC: B01D69/10 ,  B01D69/12 ,  B01D61/00 ,  B01D67/00 ,  B01D69/02 ,  B01D71/40 ,  B01D71/42 ,  B01D71/52 ,  B01D71/56

Abstract: The present invention relates to a forward osmosis-based separation membrane based on a multilayer thin film, using crosslinking between organic monomers, and a preparation method therefore, and in the preparation of the forward osmosis-based separation membrane including a support layer and a selective layer, a middle layer is provided between the support layer and the selective layer so as to prevent a phenomenon in which the selective layer is filled in a pore of the support layer, such that the thickness of a multilayer thin film constituting the selective layer is optimized, and excellent water permeability, salt removal rate and pollution resistance properties are exhibited through the support layer having a structure of uniform surface pores and minimized pore distortion.