公开(公告)号：US20210394124A1

公开(公告)日：2021-12-23

申请号：US17350507

申请日：2021-06-17

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jung Hyun LEE ,  Min Gyu SHIN ,  Sung Joon PARK ,  Jin Young SEO ,  Sung Kwon JEON

IPC: B01D67/00 ,  C08J5/18 ,  C08J7/04 ,  B01D69/12 ,  B01D71/56 ,  B01D61/02

Abstract: The present invention relates to a method of manufacturing a high-performance thin film composite (TFC) membrane through a solvent activation process. In the present invention, by using a mixed solvent of a good solvent and a poor solvent as an activating solvent, a conventional polysulfone-based support-based TFC membrane having high water permeance as well as excellent salt rejection may be manufactured.

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.