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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]
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)
PolyacrylonitrileIndex. 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 weightsEn ligne : https://drive.google.com/file/d/1UKQ3JoPpgc-YAjfZNAwCwzqbF07sEt_r/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38743
in TECHNICAL TEXTILES > Vol. 65, N° 5 (12/2022) . - p. 253-255[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23779 - Périodique Bibliothèque principale Documentaires Disponible PEF - from polymer to product / Tim Höhnemann in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 1 (03/2022)
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Titre : PEF - from polymer to product Type de document : texte imprimé Auteurs : Tim Höhnemann, Auteur ; Mark Steinmann, Auteur ; Martin Dauner, Auteur Année de publication : 2022 Article en page(s) : p. 27-29 Langues : Anglais (eng) Catégories : Biopolymères
Etudes comparatives
Polyéthylène furanoateLe polyéthylène 2,5-furandicarboxylate , également appelé poly (éthylène 2,5-furandicarboxylate), polyéthylène furanoate et poly (éthylène furanoate) et généralement abrégé en PEF , est un polymère pouvant être produit par polycondensation de l' acide 2,5-furandicarboxylique ( FEP), FDCA) et d' éthylène glycol . En tant que polyester aromatique à partir d'éthylène glycol, il s'agit d'un analogue chimique du polyéthylène téréphtalate (PET) et du polyéthylène naphtalate (PEN).
Polyéthylène téréphtalateIndex. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : In order to create a basis for a more sustainable polymer and textile industry, bio-based polymers such as PEF (polyethylene furanoate) should be able to replace the established petroleum-based plastics as far as possible in the future. Applications include bio-based fibers for clothing and technical textiles, but also high-performance fibers such as those needed for tire cord yarns. In the PFIFFIG project (polymer fibers from bio-based furanoates targeting industrial grade), several institutes and industrial partners are conducting research along the process chain of PEF from the plant raw material to the technical end application. The DITF succeeded in the synthesis and spinning of PEF into yarns that meet the requirements for textile application, but also for high-strength applications. Note de contenu : - Plant waste residues as raw material alternative to petroleum
- Requirements as a high-performance polymer fulfilled
- PEF yarns meet technical requirements
- From high-tenacity to high-performance applications
- Table : Comparison of the process window and achievable yarn properties of PEF and PETEn ligne : https://drive.google.com/file/d/1gwCKUAkDULLXSETQIFqdHgWSyr1tA9ys/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37393
in CHEMICAL FIBERS INTERNATIONAL > Vol. 72, N° 1 (03/2022) . - p. 27-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23331 - Périodique Bibliothèque principale Documentaires Disponible PET/polyester recycling : requirements and recycling solutions for reuse in filaments / Paul Niedl in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)
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Titre : PET/polyester recycling : requirements and recycling solutions for reuse in filaments Type de document : texte imprimé Auteurs : Paul Niedl, Auteur ; Andrea Hackl, Auteur Année de publication : 2020 Article en page(s) : p. 157-158 Langues : Anglais (eng) Catégories : Fibres polyesters
FilamentsFibre de longueur infinie ou extrême comme celle qu'on trouve dans la soie à l'état naturel. Les fibres manufacturées sont extrudées en filaments qui sont transformés en fils continus, en fibres courtes ou en câbles.
Filtration
Matières plastiques -- Recyclage
Polyéthylène téréphtalate
Recyclage mécaniqueIndex. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : Polyethylene terephthalate (PET) is a linear polyester that is used both in the production of plastic bottles and in the production of fibers and filaments for textile applications. PET bottles are a prime example of successful mechanical recycling, and polyester fiber and filament can likewise be recycled very well. The 2 types of input material are obtained from different sources : while PET bottles are available as post-consumer waste from bottle collection systems, polyester waste typically accrues in the form of production scrap from a textile mill. This article covers upcycling options for PET and polyester by means of mechanical recycling into pellets and reuse for polyester continuous filament. In polyester upcycling, fine filtration and IV increase are the key aspects that need to be addressed ; the article therefore provides a detailed discussion of how to optimize these steps. Note de contenu : - Polyester : upcycling vs. downcycling
- Polyester upcycling : machinery selection
- Polyester upcycling : filtration setup
- Fig. 1 : RecoStar universal recycling line with pre-and post filter
- Fig. 2 : Rapid Sleeve Changer - changing of the filter
- Fig. 3 : Polyester upcycling : IV increase
- Table : Material characteristics - machinery selection criteriaEn ligne : https://drive.google.com/file/d/1qVhqdQQhZ2RsiKQZQIQOda9HSFtjY-vv/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35032
in CHEMICAL FIBERS INTERNATIONAL > Vol. 70, N° 4 (12/2020) . - p. 157-158[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22511 - Périodique Bibliothèque principale Documentaires Disponible 22474 - Périodique Bibliothèque principale Documentaires Disponible Polyamide dissolution and recovery from fiber blends for recycling / Avinash P. Manian in MAN-MADE FIBERS INTERNATIONAL, Vol. 73 - Year Book 2023 (2023)
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Titre : Polyamide dissolution and recovery from fiber blends for recycling Type de document : texte imprimé Auteurs : Avinash P. Manian, Auteur ; Thomas Bechtold, Auteur ; Tung Pham, Auteur Année de publication : 2023 Article en page(s) : p. 61-63 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dissolution (chimie)
Elasthanne
Fibres cellulosiques
Mélanges de fibres
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.
Textiles et tissus -- Recyclage
Textiles et tissus à usages techniques
VêtementsIndex. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : Over the past 2 decades, the production of new clothing has risen substantially whereas their rate of use, i.e. how long items are put to use before being discarded, has reduced. The result is a dramatic increase in the generation of textile waste, which is illustrated by the estimate that a truckload of disposed clothing is unloaded each second at a landfill or incineration site somewhere in the world. This situation has brought into sharp focus the need to use clothes for longer, and when finally disposed, to maximize the recovery of useful components from them for reuse in the manufacture of new clothing. Note de contenu : - Research focus
- Fig. 1 : Examples of PA containing clothing articles. PA-elastane blend for work gloves (top) and blend of PA, cellulose and elastane in sportswear
- Fig. 2 : PA-elastane blend before (top) and after (bottom) treatment with the solvent composed of calcium chloride, ethanol and waterEn ligne : https://drive.google.com/file/d/12ImMsnez7JL4BuBmxDavC6n8pskRbB2l/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40013
in MAN-MADE FIBERS INTERNATIONAL > Vol. 73 - Year Book 2023 (2023) . - p. 61-63[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24252 - Périodique Bibliothèque principale Documentaires Disponible Polyester chemical recycling - an update / Ulrich Thiele in CHEMICAL FIBERS INTERNATIONAL, (10/2021)
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Titre : Polyester chemical recycling - an update Type de document : texte imprimé Auteurs : Ulrich Thiele, Auteur Année de publication : 2021 Article en page(s) : p. 16-19 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fibres polyesters
Recyclage chimique
Textiles et tissus -- RecyclageIndex. décimale : 677.47 Non cellulosiques : Nylon, acryliques, polyesters, vinyles Résumé : The significant difference between the mechanical recycling of mainly PET bottle waste and chemical recycling, which is ultimately aiming at all kind of polyester waste, are process/investment costs and process complexity or more generally the difference between manufacturing light industry and heavy industry. Within the first case, one is able to generate a result or profit with an investment between € 0.5 million and € 5 million compared to the heave industry investment of between € 20 million and € 200 million or even higher. Another hurdle of chemical recycling is the fact that investments are today still ideology driven and not market driven. As long as fossil-based polyester is competing in a free market with chemical recycling-based polyester, the latter it has no real chance of winning. The world would need a general ruling that the price of a product depends on the carbon source — fossil or recycling-loop — and all fossil-based products have to pay a recycling-loop-tax which makes fossil products automatically more expensive than recycling-loop-based products. Note de contenu : - New chemical recycling processes under development
- Loop industries
- Gr3n
- Ioniqa
- Garbo
- IBM
- Soprema
- Eastman
- Ifpen
- Carbios and technip
- Ambercycle
- Poseidon
- Chemical recycling processes in operation
- Teijin
- Jiaren
- Jeplan
- PerPETual polygenta
- Far Eastern New Century (FENC)En ligne : https://drive.google.com/file/d/1v4D_alF8lzD87c5sjjCPYeOUexkoxKUy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36687
in CHEMICAL FIBERS INTERNATIONAL > (10/2021) . - p. 16-19[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23018 - Périodique Bibliothèque principale Documentaires Disponible Polyethylene vs. para-aramid fibers / Piet J. Lemstra in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 4 (12/2021)
PermalinkProperty optimization of PAN-fibers based on improved air-gap spinning technology / Frank-Günter Niemz in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 4 (12/2021)
PermalinkRecent developments in the global polyester chain / Salmon Lee in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)
PermalinkRecycled polyester : innovative technical applications / Subramonia Pillai Viju in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 4 (12/2021)
PermalinkRelationship between machine parameters and the properties of PA FDY / Suraj Amrutkar in CHEMICAL FIBERS INTERNATIONAL, (10/2021)
PermalinkStress relaxation studies in polyester filaments / Suhas Digmabar Asagekar in CHEMICAL FIBERS INTERNATIONAL, Vol. 71, N° 4 (12/2021)
PermalinkStructure and properties of opaque polyester fibers / Ni Wang in CHEMICAL FIBERS INTERNATIONAL, (10/2012)
PermalinkSynthesis and appliation of hydrogel corn silk/ZnO composites on polyester fabric / Sachin M. Landage in TECHNICAL TEXTILES, Vol. 67, N° 1 (2023)
PermalinkToughness of polyester flocks in shear thickening gel / Yuhao Tan in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)
PermalinkTunable electrospinning of PA6 nano-cobweb fibrous membrane / Xiaying Liu in CHEMICAL FIBERS INTERNATIONAL, (10/2021)
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