[en] Various modifications of standard glass fiber filtration media using electrospun PA66 nanofibers are described. PA66 were selected because they were readily available from commercial sources. Other polymers, such as PP, PET and PBT, could also be used. The first set of samples was prepared by mixing the nanofibers at two, three and five weight percent with glass fibers, and the second by laying the same proportion of the nanofibers directly onto the downstream side of the substrate. The aim of these modifications was to improve the three most basic functionalities of filter media, the separation efficiency, the differential pressure (ΔP) and the dirt holding capacity (DHC). The modified media samples were evaluated with the standard textile characterization techniques and filtration performance evaluation procedures. The results showed differences in the several tens of percentage points achieved with the two modification methods. Moreover, additional differences in performance were observed depending on the percentage of nanofibers admixed to the substrate. These differences were most apparent in the filtration efficiency and the DHC, both by several percentage points, with no apparent effect on the ∆P. The results strongly suggest that the preparation of new filter media by incorporating nanofibers directly into the matrix can result in significant improvements in filtration performance characteristics.
Disciplines :
Mechanical engineering
Author, co-author :
Weiter, Laura; Faculty of Science, Technology and Communication, University of Luxembourg, 4365 Luxembourg, Luxembourg
LEYER, Stephan ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Duchowski, John K; HYDAC FluidCareCenter® GmbH, 66280 Sulzbach, Germany
External co-authors :
yes
Language :
English
Title :
Enhancement of Filtration Performance Characteristics of Glass Fiber-Based Filter Media, Part 1: Mechanical Modification with Electrospun Nanofibers.
Publication date :
08 May 2024
Journal title :
Materials
ISSN :
1996-1944
eISSN :
1996-1944
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Switzerland
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