公开(公告)号：US20210245111A1

公开(公告)日：2021-08-12

申请号：US17049647

申请日：2019-04-23

Applicant: Korea University Research and Business Foundation

Inventor： Jung-hyun LEE ,  Sung Joon PARK ,  Hyo Eun KWON ,  Soon Jin KWON

IPC: B01D69/12 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D71/56 ,  C02F1/44

Abstract: The present invention relates to a thin film composite membrane and a manufacturing method therefor. The thin film composite membrane according to the present invention has superior water flux and excellent salt (NaCl) rejection and/or boron rejection.

公开(公告)号：US20210031151A1

公开(公告)日：2021-02-04

申请号：US16963985

申请日：2019-01-22

Applicant: Korea University Research and Business Foundation

Inventor： Jung-hyun LEE ,  Min Gyu SHIN ,  Sang Hee PARK ,  Hyoeun KWON ,  Soon Jin KWON

IPC: B01D69/12 ,  B01D61/02 ,  B01D71/56 ,  B01D67/00 ,  C08G69/26

Abstract: The present invention relates to a method for manufacturing a high-performance thin film composite (TFC) membrane through post-treatment with solvents. In the present invention, Ra, which is a new criterion for activating solvents (difference in Hansen solubility parameter between an activating solvent and a polymer), and boiling points of the activating solvents are suggested, whereby the activating solvent thus selected can be used to implement the performance of reverse osmosis (RO) to nanofiltration (NF) grades, and an activated TFC membrane having anti-scaling effects to inorganic salts and acid resistance with high separation performance can be manufactured.

公开(公告)号：US20180333684A1

公开(公告)日：2018-11-22

申请号：US15768431

申请日：2016-11-24

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jung-hyun LEE ,  Hyun Wook JUNG ,  Sung-Joon PARK ,  Won-gi AHN ,  Wanseok CHOI ,  Yong Woo LEE

IPC: B01D69/12 ,  B01D67/00 ,  B01D71/56 ,  C02F1/44 ,  B05C5/02

CPC classification number: B01D69/125 ,  B01D61/02 ,  B01D67/00 ,  B01D67/0006 ,  B01D67/0095 ,  B01D69/10 ,  B01D69/12 ,  B01D71/06 ,  B01D71/56 ,  B05C5/0254 ,  C02F1/44 ,  Y02A20/131

Abstract: The present invention relates to a preparation process for a thin film composite (TFC) membrane (hereinafter TFC membrane), and provides a method for the preparation of a membrane through a one-step process using a dual (double layer)-slot coating technique. In the dual (double layer)-slot coating process according to the present invention, a TFC membrane can be prepared by: forming a double-solution layer through a one-step process of performing simultaneous applying/contact of two immiscible solutions, in which two kinds of reactive organic monomers are dissolved, on a porous support; and synthesizing a selective layer through a crosslinking reaction between the organic monomers at an interface of the double layer.