Aeronautics : now what ? / Régis Voillat in JEC COMPOSITES MAGAZINE, N° 135 (07-08/2020)

[article]  inJEC COMPOSITES MAGAZINE > N° 135 (07-08/2020) . - p. 51-52 Titre : Aeronautics : now what ? Type de document : texte imprimé Auteurs : Régis Voillat, Auteur Année de publication : 2020 Article en page(s) : p. 51-52 Langues : Anglais (eng) Catégories : Composites à fibres naturelles Industries aérospatiales -- Matériaux Matériaux hybrides Satellites artificiels Index. décimale : 668.4 Plastiques, vinyles Résumé : Together with the European Space Agency (ESA), Bcomp developed the first natural fibre reinforced satellite panel to make space exploration cleaner and safer. As a finalist for the JEC Innovation Awards, the satellite panel showcases the versatility of powerRibs and ampliTex sustainable lightweighting technologies. Note de contenu : - Improving safety - Tested for space - High potential for the future - Fig. 1 : Bio-composite demonstrator satellite panels - Fig. 2 : Atmospheric re-entry simulation on material samples - Fig. 3 : Demonstrator mounted with heavy masses in a test configuration Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35395 [article]

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Can silk become a fashionable polymer-reinforcing fibre ? / Darshil U. Shah in JEC COMPOSITES MAGAZINE, N° 92 (10-11/2014)  

[article]  inJEC COMPOSITES MAGAZINE > N° 92 (10-11/2014) . - p. 47-50 Titre : Can silk become a fashionable polymer-reinforcing fibre ? Type de document : texte imprimé Auteurs : Darshil U. Shah, Auteur ; David Porter, Auteur ; Fritz Vollrath, Auteur Année de publication : 2014 Article en page(s) : p. 47-50 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres naturelles Soie et constituants Index. décimale : 668.4 Plastiques, vinyles Résumé : While silks have long been (and incorrectly) hyped for use in ultra-light bullet-proof vests, they have found some niche technical applications (e.g. high-end tubular tyres and "ballistic boxers"). Yet, today's silks are still predominantly used in garments and textiles. However, the Oxford Silk Group's recent studies are suggesting that nature's wonder-fibre silk is a strong natural fibre candidate for reinforcement in polymer composites. Note de contenu : - Composite manufacture - Property evaluation of silk composites - Tab. 1 : Silks in comparison to plant and glass fibres En ligne : https://drive.google.com/file/d/1x8Wm7IOvpddZbpyG9M62Eod6x97ZmjXc/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23029 [article]

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Composites are trendsetters in lightweight design / Eva Bittmann in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 1 (2021)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 1 (2021) . - p. 37-40 Titre : Composites are trendsetters in lightweight design : Fiber-reinforced composites drive innovation in the transport and construction sectors Type de document : texte imprimé Auteurs : Eva Bittmann, Auteur Année de publication : 2021 Article en page(s) : p. 37-40 Langues : Anglais (eng) Catégories : Composites à fibres Composites à fibres -- Recyclage Composites à fibres naturelles Construction -- Matériaux Construction sandwich Fibres de basalte Fibres de carbone Impression tridimensionnelle Matériaux -- Allègement Matériaux -- Imprégnation Mousses plastiques Polymères ignifuges Transport -- Matériaux Tressage Index. décimale : 668.4 Plastiques, vinyles Résumé : Climate change and the transport revolution are demanding smart fiber-reinforced composite solutions. In sectors such as the marine industry, infrastructure, and rail vehicle construction, many different fire protection concepts are competing. The composites industry is paying increased attention to recycling. Note de contenu : - Cost-effective braiding processes - Fire-retardant thermoset and thermoplastic composites - Natural fibers for satellites - Foam cores processed differently - Pore-free 3D printing - Recycling of aircraft components - Fig. 1 : Spaceframe for a metro rail vehicle front end made from braided tubes. To reduce the weight, comprehensive changes in geometry were undertaken - Fig. 2 : Methodical development process for a fiber composite-based rail vehicle roof. The improved topology results in favorable load paths. Free-size optimization determines the thickness of the fiber layers - Fig. 3 : The core of an integrated sandwich structure for vacuum infusion is a 3D-reinforced foam with an "Enex" fire-retardant inner layer - Fig. 4 : The texture-wall component for mobile homes has an authentic plaster look. It is weather-proof and UV-resistant and therefore has a very long life - Fig. 3 : - Fig. 4 : - Fig. 5 : Two concepts for quasi-pore-free, additively manufactured fiber-reinforced composites. The 3D printer with "fusion module" for post-consolidation gives users an uncomplicated entry into serial production. Coextrusion of thermoplastics with pre-impregnated fibers leads to composites with very good mechanical properties ; CCF = composite carbon fiber, CBF = composite basalt fiber Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35104 [article]

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Elegant surfaces with visible natural fibers / Nils Becker in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 9 (09/2018)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 9 (09/2018) . - p. 71-73 Titre : Elegant surfaces with visible natural fibers : Natural fiber compression moldings with a luxury finish made with a new composite material press process Type de document : texte imprimé Auteurs : Nils Becker, Auteur ; Werner Klusmeier, Auteur Année de publication : 2018 Article en page(s) : p. 71-73 Langues : Anglais (eng) Catégories : Automobiles -- Décoration Automobiles -- Matériaux Composites à fibres naturelles Fibres naturelles Panneaux de fibres Polypropylène Stratifiés Index. décimale : 668.4 Plastiques, vinyles Résumé : The use of natural fiber-reinforced composite materials is currently gaining new impetus in the form of decoratively finished designs which retain a natural appearance. A newly developed finishing technology from Yanfeng Automotive Interiors (YFAI) makes natural fibers visible. Note de contenu : - Natural protagonists in automotive interior - Luxury class visible natural fiber decor - Natural fibers for an environmentally friendly lifestyle - Fig. : It does not always have to be just piano black: natural fibers in the visible area create a visual and haptic contrast to the multifunctional, high-tech interior - Fig. 1 : A decorative fleece and a laminate printed on the rear side are responsible for the colorful natural fiber surfaces. The door panel consists of three layers that are pressed together in a single-stage process - Fig. 2 : The natural materials are laminated with a protective film to ensure that the surfaces meet the demands made on them. The challenge in this process is the forming of all the materi-als at up to 200°C En ligne : https://drive.google.com/file/d/1TS1o2u0vG-QJKEeOIB7RawHyTD2qISX1/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31188 [article]

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Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement / Kawtar Lamhour in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 2 (2022)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 2 (2022) . - p. 210-225 Titre : Extraction and characterization of Alfa fibers and their use to produce Alfa/wool woven fabrics for composite reinforcement Type de document : texte imprimé Auteurs : Kawtar Lamhour, Auteur ; Marwane Rouway, Auteur ; Ouahiba Mrajji, Auteur ; Abdeslam Tizliouine, Auteur ; Lhaj El Hachemi Omari, Auteur ; Hayat Salhi, Auteur ; Nabil Chakhchaoui, Auteur ; Omar Cherkaoui, Auteur ; Mohamed El Wazna, Auteur Année de publication : 2022 Article en page(s) : p. 210-225 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Composites à fibres naturelles Fibres d'alfa Fibres textiles -- Propriétés mécaniques Laine Tissés Traitement chimique Index. décimale : 668.4 Plastiques, vinyles Résumé : Because of their appealing properties, such as biodegradability, high basic stiffness, low density, and low cost, natural fibers have begun to be used in a variety of applications. In comparison to synthetics, they are also reusable. The aim of this work is to develop new woven materials made of wool and Alfa fibers (Stipa-tenacissima). The extraction of Alfa fibers was achieved via alkaline treatment. The chemical composition, mechanical and physical properties of the extracted fibers were determined. Wovens were produced using the weaving of taffetas technique. This study presents a chemical, physical, morphological and mechanical characterization of Alfa/wool yarns and fabrics. The results show that the fabric made of fibers treated with 2 mol concentration of NaOH presents the greatest morphological structure and a higher degree of crystallinity due to the reorganization of the molecular chains that results in a better orientation of the fibers compared to other concentrations. On the other hand, the results of the tensile test show that the Young’s modulus of the Alfa/Alfa woven fabric is 8 ± 1.157 MPa in the weft direction, compared to the Alfa/wool woven fabric which has 6.06 ± 0.196 MPa and wool/wool woven fabric with 14.10 ± 1.369 MPa. Note de contenu : - Materials and methods - Results and discussion : Mechanical properties of Alfa and wool yarns - Physical properties of woven materials - Mechanical properties of woven materials - Table 1 : Weights of the initial and extracted Alfa fibers and the yield of the extraction - Table 2 : Fibers diameters - Table 3 : Degree of crystallinity from XRD data - Table 4 : Water absorption coefficient of different natural fibers and of fiber and fabric samples produced in this work - Table 5 : Mechanical properties of Alfa and wool yarns - Table 6 : Composition of woven fabrics - Table 7 : Physical properties of woven fabrics. - Table 8 : Average results of mechanical properties of wovens in the weft direction - Table 9 : Comparison of mechanical properties for fabrics and yarns in the weft direction - Table 10 : Comparison of mechanical properties of yarns DOI : https://doi.org/10.1515/ipp-2022-4199 En ligne : https://drive.google.com/file/d/1NNIGeTq8aViWxlIVPaYLF1I07Mp2JrMB/view?usp=shari [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37626 [article]

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Fire resistance of polymers / Tipanna Melkeri in PAINTINDIA, Vol. LXXI, N° 4 (04/2021)  

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A review on the influence of natural-synthetic fibre hybrid reinforced polymer composites for bulletproof and ballistic applications / Dennis O. Bichang’a in MATERIAUX & TECHNIQUES, Vol. 110, N° 5 (2022)  

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