PAN nano-cobweb-bead-on-string fiber composite membrane for air filtration / Yazhi Liu in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 4 (11/2022)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 72, N° 4 (11/2022) . - p. 207-210 Titre : PAN nano-cobweb-bead-on-string fiber composite membrane for air filtration Type de document : texte imprimé Auteurs : Yazhi Liu, Auteur ; Yuepeng Xu, Auteur ; Zhaolin Liu, Auteur ; Wei Wang, Auteur ; Ni Wang, Auteur Année de publication : 2022 Article en page(s) : p. 207-210 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composites à fibres Construction sandwich Electrofilature Filtres à air Membranes (technologie) Polyacrylonitrile Textiles et tissus à usages techniques Index. décimale : 677.4 Textiles artificiels Résumé : Sandwich structured polyacrylonitrile (PAN) nano-cobweb/bead-on-string fiber composite membranes were prepared by sequential electrospinning. With integrated features of ultra-fine nano-cobwebs and interconnected tortuous cavities among bead-on-string fibers, the composite membranes can exhibit very interesting air filtration performance by regulating the nano-cobweb/bead-on-string fiber mass ratio and basis weight. The results show that the filtration efficiency and the pressure drop decrease and then increase slightly with the increasing content of bead-on-string fiber. However, the quality factor goes up first, and then down, indicating the beneficial effect of modest bead-on-string fiber content on air filtration property. As the basis weight increases, the growth of filtration efficiency slows down and the pressure drop rises significantly, making the quality factor improve initially and then decline. Note de contenu : - EXPERIMENTAL : Materials - Preparation of the PAN nano-cobweb/bead-on-string fiber composite membranes - Characterization - DISCUSSION : Structure design of the PAN nano-cobweb/bead-on-string fiber composite membrane - Air filtration performance of the membranes at various nano-cobweb/bead-on-string fiber mass ratios - Air-filtration performance of the membranes at various basis weights En ligne : https://drive.google.com/file/d/1g5-rI273fh-tzMqyiWHWuYWaIkvzWmel/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38481 [article]

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PAN nano-cobweb/bead-on-string fiber composite membrane for air filtration / Yazhi Liu in TECHNICAL TEXTILES, Vol. 65, N° 5 (12/2022)  

[article]  inTECHNICAL TEXTILES > Vol. 65, N° 5 (12/2022) . - p. 253-255 Titre : PAN nano-cobweb/bead-on-string fiber composite membrane for air filtration Type de document : texte imprimé Auteurs : Yazhi Liu, Auteur ; Yuepeng Xu, Auteur ; Zhaolin Liu, Auteur ; Wei Wang, Auteur ; Ni Wang, Auteur Année de publication : 2022 Article en page(s) : p. 253-255 Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Air -- Epuration Caractérisation Construction sandwich Fibres textiles synthétiques Filtration Filtres à air Membranes (technologie) Polyacrylonitrile Index. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : Sandwich structured polyacrylonitrile (PAN) nano-cobweb/bead-on-string fiber composite membranes were prepared by sequential electrospinning. With integrated features of ultra-fine nano-cobwebs and interconnected tortuous cavities among bead-on-string fibers, the composite membranes can exhibit very interesting air filtration per¬formance by regulating the nano-cobweb/bead-on-string fiber mass ratio and basis weight. The results show that the filtration efficiency and the pressure drop decrease and then increase slightly with the increasing content of bead-on-string fiber. However, the quality factor goes up first, and then down, indicating the beneficial effect of modest bead-on-string fiber content on air filtration property. As the basis weight increases, the growth of filtration efficiency slows down and the pressure drop rises significantly, making the quality factor improve initially and then decline. Note de contenu : - EXPERIMENTAL : Materials - Preparation of the PAN nano-cobweb/bead-on-string fiber composite membranes - Characterization - DISCUSSION : Structure design of the PAN nano-cobweb/bead-on-string fiber composite membrane - Air filtratio nperformance of the membranes at various nano-cobweb/bead-on-string fiber mass ratios - Air filtration performance of the membranes at various basis weights En ligne : https://drive.google.com/file/d/1UKQ3JoPpgc-YAjfZNAwCwzqbF07sEt_r/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38743 [article]

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PU nanofibrous membrane with gradient laminated structure for efficient sound absorption / Yuepeng Xu in MAN-MADE FIBERS INTERNATIONAL, Vol. 74, N° 1 (2024)  

[article]  inMAN-MADE FIBERS INTERNATIONAL > Vol. 74, N° 1 (2024) . - p. 31-34 Titre : PU nanofibrous membrane with gradient laminated structure for efficient sound absorption Type de document : texte imprimé Auteurs : Yuepeng Xu, Auteur ; Shousen Zhao, Auteur ; Yanru Zhang, Auteur ; Zhaolin Liu, Auteur ; Haoyue Li, Auteur Année de publication : 2024 Article en page(s) : p. 31-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composites Dioxyde de manganèse Electrofilature Isolation acoustique Membranes (technologie) Nanofibres Polyuréthanes Revêtement monocouche Son -- Absorption Index. décimale : 677.4 Textiles artificiels Résumé : In order to solve the problem of noise pollution, polyurethane (PU) nanofibrous membranes with different structures were prepared by electrospinning. The influence of layer number, single-layer basis weight arrangement and the concentration of MnO2 on the sound absorption performance was investigated. The results show that the sound absorption coefficient of the PU laminated nanofibrous membranes enhances initially and then declines with the increase of the layer numbers, reaching the maximum when the layer number is 8. The overall sound absorption performance of the PU nanofibrous membranes with increasing single-layer basis weight arrangement is better than that of the membranes with decreasing single-layer basis weight arrangement. When the concentration of Mn02 is 2 wt.%, the sound absorption coefficient of the MnO2/PU composite membrane achieves its peak value due to the fine fiber diameter and high porosity. Note de contenu : - EXPERIMENTAL : Preparation of PU single-layer nanofibrous membranes - Preparation of PU laminated nanofibrous membranes - Preparation of PU gradient laminated nano-fibrous membranes - Prepration of MNO2/PU composite nanofibrous membranes - Characterization - RESULTS AND DISCUSSION : Sound absorption performance of the PU laminated nanofibrous membranes - Sound absorption performance of the PU gradient laminated nanofibrous membranes - Sound absorption performance of the MnO2/PU composite nanofibrous membranes - Structure parameters of the MnO2/PU composite nanofibrous membranes En ligne : https://drive.google.com/file/d/1tThJ8v10TS4X2CKtPHi6xixBIEla06wa/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40607 [article]

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