公开(公告)号：US20220118380A1

公开(公告)日：2022-04-21

申请号：US17506806

申请日：2021-10-21

Applicant: POSTECH Research and Business Development Foundation

Inventor： Woonbong HWANG ,  Seongmin Kim

IPC: B01D17/04 ,  B01D69/02 ,  B01D39/16 ,  B01D39/20 ,  B01D67/00 ,  C02F1/40

Abstract: A super-hydrophilic surface treatment method of a filter medium of a filter for oil-water separation according to the present invention includes preparing a filter medium or a filter including the filter medium using a polymer base or a metal base, and forming a hydrophilic coating layer to the filter medium or the filter including the filter medium by cross-linking bis-acrylamide (N,N-methylenebisacrylamide).

公开(公告)号：US12146070B2

公开(公告)日：2024-11-19

申请号：US17775379

申请日：2021-01-29

Applicant: POSTECH Research and Business Development Foundation

Inventor： Woonbong Hwang ,  Seongmin Kim ,  Jeong-Won Lee

IPC: C09D183/04 ,  B05D3/02 ,  B05D3/10 ,  B05D5/08 ,  B05D7/16 ,  C08G77/04 ,  C08K3/28 ,  C09D5/00 ,  C09D7/61 ,  C23F1/34 ,  C23F1/36

Abstract: The present invention relates to an eco-friendly and simple super-hydrophobic coating method that does not use harmful substances and special equipment. Coating according to the present invention may be performed as a single process without special equipment, and because only eco-friendly materials are used, the coating material may be easily used and discarded. In addition, even a three-dimensional pipe or a heat-exchanger having a complex shape may be modified to have super-hydrophobicity by applying the present coating, and a super-hydrophobic metal filter may be manufactured and used for oil-water separation. As a result, the present coating method is eco-friendly, simple, and applicable to various substrates, so it has great potential for application in various industries.