Biotechnological recovery of carbon fibers from fiber composites that are difficult to recycle / Evelyne Konopka in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 3 (09/2022)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 72, N° 3 (09/2022) . - p. 152-154 Titre : Biotechnological recovery of carbon fibers from fiber composites that are difficult to recycle Type de document : texte imprimé Auteurs : Evelyne Konopka, Auteur Année de publication : 2022 Article en page(s) : p. 152-154 Langues : Anglais (eng) Catégories : Aspergillus Biotechnologie Déchets industriels -- Elimination Fermentation Fibres de carbone -- Recyclage Fibres textiles synthétiques -- Biodégradation Recyclage organique Index. décimale : 677.4 Textiles artificiels Résumé : Carbon fiber reinforced polymers (CFRP) are classified as materials with high development potential. CFRP has exceptional properties such as high stiffness and strength combined with low density. However, recovery of the carbon fibers from the surrounding matrix is difficult. Currently, industrial recycling is mainly carried out by pyrolysis. A biotechnological recycling process would be a complementary alternative. The feasibility of such a process was investigated on the basis of the metabolic activity of specific microorganisms that are able to recycle such complex materials. Note de contenu : - Recycling and waste disposal - Biodegradation through microorganisms - Future potential ? - Fig. 1 : Changes in the epoxy-containing culture medium due to the influence of Aspergillus niger - Fig. 2 : Laboratory reactor, detailed view of A. niger during fermentation process in laboratory reactor and CFRP chips used in the laboratory tests - Fig. 3 : Pre-fermentation : epoxy matrix shows smooth surface, after 6 weeks of fermentation : epoxy matrix shows rough surface and denting is visible, indicating initial degradation En ligne : https://drive.google.com/file/d/1iOGuJvgbIy4qzPaUPPmo3t4mx90c0nN-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38168 [article]

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Biotechnological recovery of carbon fibers from fiber composites that are difficult to recycle / Evelyne Konopka in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)  

[article]  inTECHNICAL TEXTILES > Vol. 65, N° 4 (10/2022) . - p. 194-196 Titre : Biotechnological recovery of carbon fibers from fiber composites that are difficult to recycle Type de document : texte imprimé Auteurs : Evelyne Konopka, Auteur Année de publication : 2022 Article en page(s) : p. 194-196 Langues : Multilingue (mul) Catégories : Biodégradation Biotechnologie Déchets -- Valorisation Fibres de carbone -- Recyclage Index. décimale : 677.4 Textiles artificiels Résumé : Carbon fiber reinforced polymers (CFRP) are classified as materials with high development potential. CFRP has exceptional properties such as high stiffness and strength combined with low density. However, recovery of the carbon fibers from the surrounding matrix is difficult. Currently, industrial recycling is mainly carried out by pyrolysis. A biotechnological recycling process would be a complementary alternative. The feasibility of such a process was investigated on the basis of the metabolic activity of specific microorganisms that are able to recycle such complex materials. Note de contenu : - Recycling and waste disposal - Biodegradation through micro-organisms - Future potential ? En ligne : https://drive.google.com/file/d/1VHEieE2CBx9NpokZYJdEIxPWmLgt9iev/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38546 [article]

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Bringing carbon fiber recycling innovations into the market in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 70, N° 4 (12/2020) . - p. 152 Titre : Bringing carbon fiber recycling innovations into the market Type de document : texte imprimé Année de publication : 2020 Article en page(s) : p. 152 Langues : Anglais (eng) Catégories : Fibres de carbone -- Recyclage Nontissés Index. décimale : 677.4 Textiles artificiels Résumé : Carbon fibers almost entirely consist of pure carbon and are obtained in a very energy-intensive process from the polymer polyacrylonitrile at 1,300 °C. Carbon fi bers are low density, but at the same time extremely break-proof and stable. Such properties are required e.g. at the battery box of electric vehicles or in structural components of the car body. The Saxon Textile Research Institute (STFI), Chemnitz/Germany, is currently working with industrial partners to combine static-mechanical strength of carbon fibers with vibration damping properties in order to improve the housing of electric vehicle motors. In this research project funded by the Federal Ministry for Economic Affairs and Energy, the development of so-called hybrid nonwovens is considered, which contain other fiber materials as reinforcement in addition to carbon fibers. Note de contenu : - Using paper know-how - Implementation in the automotive industry En ligne : https://drive.google.com/file/d/1CqSKidlEFcgt5vJ89c1PBu_1At7JtlNR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35029 [article]

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Comminution and characterization of carbon staple fibers produced from rejects / Sabrina Zobel in CHEMICAL FIBERS INTERNATIONAL, (10/2013)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > (10/2013) . - p. 57-59 Titre : Comminution and characterization of carbon staple fibers produced from rejects Type de document : texte imprimé Auteurs : Sabrina Zobel, Auteur ; Thomas Gries, Auteur ; David Rüßmann, Auteur ; Alexander Feil, Auteur ; Thomas Pretz, Auteur Année de publication : 2013 Article en page(s) : p. 57-59 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Fibres de carbone -- Recyclage Fragmentation Nontissés Recyclage (déchets, etc.) Index. décimale : 677.4 Textiles artificiels Résumé : During production of carbon rovings and their further processing into fiber reinforced composites, rejects of carbon filament production and edge cut-offs of crimp and non-crimp fabrics are obtained. These rejects are used for generating new, high-quality materials, which are suitable for applications in fiber reinforced composite technology. Within the CAMISMA project an aerodynamic nonwovens production technology was developed and used to continuously produce C-nonwovens [1]. One focus lies on the comminution and characterization of C-fiber length. The comminution process was tested using 3 different cutting units. To determine a method for C-fiber length characterization, 3 different methods were compared. Note de contenu : - Input material - Possibilities of carbon fiber comminution - Results of comminution experiments - Characterization of fiber length - Fig. 1 : Schematic diagram of cutting mill, single-shaft shredder and rotary shear - Fig. : Comminution units compared by produced fiber length and amount of dust - Fig. 3 : Fiber length depending on characterization method and communition steps En ligne : https://drive.google.com/file/d/1Bz0dCrjDwbiskPC0EPghATOIs-utFKTU/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19772 [article]

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From offcuts to a high-performance material / Marc Mayer in JEC COMPOSITES MAGAZINE, N° 130 (09-10/2019)  

[article]  inJEC COMPOSITES MAGAZINE > N° 130 (09-10/2019) . - p. 61-63 Titre : From offcuts to a high-performance material Type de document : texte imprimé Auteurs : Marc Mayer, Auteur ; Jesper Buck, Auteur ; Marc Fette, Auteur ; Robert Bönig, Auteur ; Arno Walther, Auteur Année de publication : 2019 Article en page(s) : p. 61-63 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composés de moulage en feuille Composites à fibres -- Moulage par compression Fibres de carbone -- Recyclage Incendies -- Prévention Matériaux -- Allègement Matériaux -- Imprégnation Microscopie électronique à balayage Index. décimale : 668.4 Plastiques, vinyles Résumé : The constantly growing use of carbon fibre generates more andmore offcuts. Through further development, these fibres can be used as a base material to produce a Sheet Moulding Compound (SMC) raw material for lightweight construction applications with high fire protection requirements. Note de contenu : - Different carbon fibre recycling methods - Description of the rCF fleece SMC technology - A new approach for the production of SMC with rCF fleece - Possible applications - Fig. 1 : Scanning electron microscope imaging of standard HT carbon fibres recycled by pyrolysis - Fig. 2 : Schematic representation of impregnation and compression moulding of SMC - Fig. 3 : Smoke detector cavity En ligne : https://drive.google.com/file/d/1R0iDkw7daAWck5jVyQRXYMwNmkV3-iaF/view?usp=drive [...] Format de la ressource électronique : pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33819 [article]

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Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 3 (09/2017)  

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Innovative semi-products made of recycled carbon fibres / Matthieu Ayfre in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)  

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Modeling for novel airlay carbon fiber nonwovens and their isotropic behavior / Sven Reichel in TECHNICAL TEXTILES, Vol. 66, N° 1 (2023)  

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New sizing formulation for recycled carbon fibres / Alessandra Passaro in JEC COMPOSITES MAGAZINE, N° 132 (01-02/2020)  

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Nonwovens for composites - recycling carbon waste in the form of long fibres / Marcel Hofmann in JEC COMPOSITES MAGAZINE, N° 98 (07-08/2015)

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Plastically deformable thanks to staple fibers / Christian Goergen in KUNSTSTOFFE INTERNATIONAL, Vol. 106, N° 5 (05/2016)  

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Recycling of carbon fibers - neo-ecology through innovative paper technology / Michael Sauer in CHEMICAL FIBERS INTERNATIONAL, Vol. 72, N° 3 (09/2022)  

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Reuse of recycled high-performance fibers in flame-retardant textiles and lightweight structures / Jan Maidorn in TECHNICAL TEXTILES, Vol. 67, N° 1 (2023)  

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Second life for carbon fibers / Holger Fischer in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 12 (12/2019)  

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