Faster process to safe battery enclosures / Karl Schnetzinger in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 9 (2022)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 9 (2022) . - p. 62-64 Titre : Faster process to safe battery enclosures : PA66 for flame retardant large-area D-LFT components Type de document : texte imprimé Auteurs : Karl Schnetzinger, Auteur ; Bernhard Forschler, Auteur Année de publication : 2022 Article en page(s) : p. 62-64 Langues : Anglais (eng) Catégories : Batteries électriques Boitiers Composites à fibres -- Moulage par compression Composites à fibres de carbone Composites à fibres de verre -- Propriétés mécaniques Composites à fibres longues Polyamide 66 Polymères ignifuges Véhicules électriques Index. décimale : 668.4 Plastiques, vinyles Résumé : Long fiber thermoplastic compression molding is suitable for the production of components with large surfaces such as battery enclosures for electric vehicles. However, these components place high demands on the material used. Not only must it have good mechanical properties, it must also be flame retardant. Two resin grades specially developed for the process meet these demands, thereby permitting the substitution of thermosetting SMC molding materials for the manufacture of such components. Note de contenu : - Increasing demands for battery enclosures - Same mechanical properties in spite of flame retardants - Tensile strength remains at same level after aging- - Competitor for SMC molding materials - Fig. 1 : During the D-LFT process, polymer and additives are mixed in the first compounder, and reinforcing fibers are introduced and wetted by the polymer melt in the second compounder - Fig. 2 : Tensile elastic modulus and tensile strength of PA66 Mobius NPD 555 GF30 and GF50 compared with the flame retardant Mobius NPD 555 FR GF30 and GF50 at –40 °C, room temperature, and 80 °C: the values of the two versions only differ slightly - Fig. 3 : Notched impact strength of two PA66’s compared with PP-GF30 and PA6-GF30: at 23 °C, the flame retardant PA66-GF50 achieved similar values as the non-flame retardant PP-GF30 - Fig. 4 : Tensile elastic modulus and tensile strength of Mobius NPD 555 FR GF30 and GF50 compared with PP-GF30 and PA6-GF30 at 23 °C and 80 °C: the GF30 version achieves values that are at least as good as the other two polymers – the GF50 version exceeds them clearly - Fig. 5 : Tensile strength of Mobius NPD 555 FR GF30 compared with a PA6-GF30 after aging at 85 °C and 85 % rel. humidity: contrary to PA6, the values of PA66 are only reduced slightly En ligne : https://drive.google.com/file/d/1NrR9EJLJr4H0_BAFbHZ_22jYE90W8gnm/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38733 [article]

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