Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers

Filter paper can be dramatically improved by the slip-flow effect and the huge specific surface area of nanofibers. Nanofibers can provide significant improvement in filtration efficiency with a relatively small reduction in permeability. In this study, nanofiber was prepared by fibrillation method...

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Main Authors: Yunzhen Yao, Min Tang, Tian Yu, Yun Liang, Jian Hu
Format: Article
Language:English
Published: North Carolina State University 2016-09-01
Series:BioResources
Subjects:
Online Access:http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_4_9506_Yao_Filtration_Dual_Layer_Nanofibers
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author Yunzhen Yao
Min Tang
Tian Yu
Yun Liang
Jian Hu
author_facet Yunzhen Yao
Min Tang
Tian Yu
Yun Liang
Jian Hu
author_sort Yunzhen Yao
collection DOAJ
description Filter paper can be dramatically improved by the slip-flow effect and the huge specific surface area of nanofibers. Nanofibers can provide significant improvement in filtration efficiency with a relatively small reduction in permeability. In this study, nanofiber was prepared by fibrillation method using para-aramid fiber. A lab method was developed to laminate the nanofiber layer on a paper substrate by a wet-laid method. The filtration performance of dual-layer filter paper with fibrillated nanofibers was evaluated, and a theoretical model was developed to study the impact of nanofiber diameter on the filtration properties. It is found that in the fibrillation process, the number of trunk fibers decreased and nanofibers increased. With smaller fiber diameter, the pressure drop and filtration efficiency of dual-layer filter paper increased. Based on fibrous structure analysis, the dual-layer filter paper was able to perform well in self-cleaning filtration. The modeling results for pressure drop and filtration efficiency were close to the tested results, which provide a tool to understand the relationship between nanofiber diameter and filtration performance.
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spelling doaj.art-cf9c6b15d3524cfa9d877f7401a033b22022-12-21T17:57:16ZengNorth Carolina State UniversityBioResources1930-21261930-21262016-09-011149506951910.15376/biores.11.4.9506-9519Filtration Performance of Dual-layer Filter Paper with Fibrillated NanofibersYunzhen Yao0Min Tang1Tian Yu2Yun Liang3Jian Hu4South China University of Technology; ChinaSouth China University of Technology; ChinaGuangxi Watyuan Filtration System Co., Ltd; ChinaSouth China University of Technology; ChinaSouth China University of Technology; ChinaFilter paper can be dramatically improved by the slip-flow effect and the huge specific surface area of nanofibers. Nanofibers can provide significant improvement in filtration efficiency with a relatively small reduction in permeability. In this study, nanofiber was prepared by fibrillation method using para-aramid fiber. A lab method was developed to laminate the nanofiber layer on a paper substrate by a wet-laid method. The filtration performance of dual-layer filter paper with fibrillated nanofibers was evaluated, and a theoretical model was developed to study the impact of nanofiber diameter on the filtration properties. It is found that in the fibrillation process, the number of trunk fibers decreased and nanofibers increased. With smaller fiber diameter, the pressure drop and filtration efficiency of dual-layer filter paper increased. Based on fibrous structure analysis, the dual-layer filter paper was able to perform well in self-cleaning filtration. The modeling results for pressure drop and filtration efficiency were close to the tested results, which provide a tool to understand the relationship between nanofiber diameter and filtration performance.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_4_9506_Yao_Filtration_Dual_Layer_NanofibersFiltration propertiesFilter paperAramid fiberFibrillated nanofiber
spellingShingle Yunzhen Yao
Min Tang
Tian Yu
Yun Liang
Jian Hu
Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
BioResources
Filtration properties
Filter paper
Aramid fiber
Fibrillated nanofiber
title Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
title_full Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
title_fullStr Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
title_full_unstemmed Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
title_short Filtration Performance of Dual-layer Filter Paper with Fibrillated Nanofibers
title_sort filtration performance of dual layer filter paper with fibrillated nanofibers
topic Filtration properties
Filter paper
Aramid fiber
Fibrillated nanofiber
url http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_4_9506_Yao_Filtration_Dual_Layer_Nanofibers
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AT tianyu filtrationperformanceofduallayerfilterpaperwithfibrillatednanofibers
AT yunliang filtrationperformanceofduallayerfilterpaperwithfibrillatednanofibers
AT jianhu filtrationperformanceofduallayerfilterpaperwithfibrillatednanofibers