公开(公告)号：US20220346471A1

公开(公告)日：2022-11-03

申请号：US17730863

申请日：2022-04-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  Sang-jin Park ,  YOUNG A LEE ,  Hyseung Cho ,  Cho-hee Lee ,  Sunmi Yoon

IPC: A41D13/11

Abstract: The present disclosure relates to an anti-droplet mask filter and an anti-droplet mask comprising the same, and more particularly, to a hydrophobic filter having ridges and an anti-droplet mask comprising the same. The present disclosure is directed to providing a mask filter with improved water repellency performance for effectively preventing the spread of acute respiratory syndrome virus infections.
The super water-repellent anti-droplet nonwoven filter of the present disclosure shows superhydrophobicity with the surface contact angle of 160° or more due to the ridges that form a nanopatterned structure on the surface of hydrophobic fibers and the surface of bonding portions, thereby preventing the adsorption of droplets onto the surface of the filter. Additionally, the super water-repellent anti-droplet nonwoven filter of the present disclosure can capture ultrafine particles such as aerosols due to the nanopatterned structure on the surface of the super water-repellent anti-droplet nonwoven filter.

公开(公告)号：US20240165586A1

公开(公告)日：2024-05-23

申请号：US18458009

申请日：2023-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Jin KIM ,  Myoung-Woon MOON ,  Min Seong KANG ,  Seohyun CHO ,  Geunhyeok CHOI ,  Youngjin LEE ,  YOUNG A LEE ,  CHAN YOUNG OH

IPC: B01J20/28 ,  B01D15/02 ,  B01J20/24 ,  B01J20/26 ,  C02F1/28

CPC classification number: B01J20/28092 ,  B01D15/02 ,  B01J20/24 ,  B01J20/261 ,  B01J20/28023 ,  B01J20/28085 ,  C02F1/285 ,  C02F2103/007

Abstract: Provided is a microplastic recovery material according to an embodiment of the inventive concept including a porous structure including a first hierarchical pocket provided in an outer surface thereof, and a nano-protrusion provided on the outer surface. The first hierarchical pocket includes a first pocket and a second pocket that are connected to each other. The first pocket has a diameter of about 1 mm to about 5 mm. The second pocket has a diameter of about 1 μm to about 100 μm.