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http://dx.doi.org/10.12772/TSE.2020.57.017

Preparation and Filtration Properties of a Nanofiber-based Composite Yarn String-wound Cartridge  

Lee, Seung Hoon (Amogreentech Co., Ltd.)
Jang, Seon Ho (Amogreentech Co., Ltd.)
So, Yun Mi (Amogreentech Co., Ltd.)
Ryu, Jung Jae (Korea Institute of Convergence Textile)
Lim, Ji Hye (Korea Institute of Convergence Textile)
Kim, Eui Hwa (Department of Textile Materials Engineering, Shinhan University)
Shim, Hyun-Joo (Department of Organic Materials and Fiber Engineering, Soongsil University)
Kim, Chan (Amogreentech Co., Ltd.)
Publication Information
Textile Science and Engineering / v.57, no.1, 2020 , pp. 17-24 More about this Journal
Abstract
Electro-spun PVDF nanofibers and PE/PP thermal-bond nonwovens were composited to obtain nanofiber-based yarns using a slitting and twisting technique. Nanofiber-based yarns were applied to string-wound cartridge filters and compared with commercial filters. The average pore size, air permeability, and filter efficiency evaluations were performed to compare PVDF-based nanofiber composite yarns with commercially available polypropylene (PP) string-wound cartridge filters. The filtration efficiency of the nanofiberbased yarn string-wound cartridge filter significantly improved compared to the commercial filter. For a 5 ㎛ particle size, PVDF-based nanofiber composite yarn filters showed a removal efficiency of above 96% and an improved filter efficiency of more than 26% compared to commercial filters. Nanofiber membranes limited to surface filtration can perform to depth filtration if they consist of nanofiber-based composite yarns. The design of nominal and absolute filters can be based on the content of the nanofiber-based composite yarns. These results demonstrate that electro-spun PVDF-based composite yarns could potentially serve as string-wound cartridge filters during processing or pre-filtering in water treatment areas.
Keywords
electrospinning; slitting; twisting; yarn; string-wound; cartridge filter;
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