公开(公告)号：US20240252964A1

公开(公告)日：2024-08-01

申请号：US18695866

申请日：2022-09-27

Applicant: University of Tennessee Research Foundation

Inventor： Uday Kumar Vasant Vaidya ,  Ganesh Deka

IPC: B01D39/18 ,  B01D35/06

CPC classification number: B01D39/18 ,  B01D35/06 ,  B01D2239/0435 ,  B01D2239/0618 ,  B01D2239/0636 ,  B01D2239/065 ,  B01D2275/10

Abstract: Filter media comprising cellulose fibers and fibrillated thermoplastic fibers, such as fibrillated polyolefins are described. The filter media can be provided in the form of non-woven fiber mats (e.g., wet-laid non-woven fiber mats) that can be integrated into air filtration devices to enhance their biodegradability. The non-woven fiber mats can be prepared as electrets. Composites comprising multiple layers of the same or different filter media can be prepared. Composites having minimum efficiency reporting value (MERV) ratings of at least 12 or at least 13 are described.