[article]
| Titre : |
Carbon fibers with uniform porous structure using block copolymers |
| Type de document : |
texte imprimé |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 84-85 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Copolymères séquencés
Fibres de carbone
Matériaux poreux
Polyacrylonitrile
Polyméthacrylate de méthyleLe poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
|
| Index. décimale : |
677.4 Textiles artificiels |
| Résumé : |
Researchers at the Virginia Tech's College of Science, Blacksburg, VA/USA, may have dis-covered a path toward powering planes and cars using energy stored in their exterior shells using porous carbon fibers made from block copolymers.
Carbon fibers, already known as a high-performing engineering material, are widely used in the aerospace and automotive industries. One application is the shells of luxury cars like Mercedes-Benz, BMW, or Lamborghini.
Carbon fibers, thin hair-like strands of car-bon, possess multiple prime material properties : they are mechanically strong, chemically resistant, electrically conductive, fire-retardant and perhaps most importantly, lightweight. The weight of carbon fibers improves fuel and energy efficiency, producing faster jets and vehicles. |
| Note de contenu : |
- Fig. 1 : Conventional (A, B) and new (C) methods for synthesizing carbon fibers from various polymer precursors
- Fig. 2 : Images from a scanning electron microscope (SEM) of carbon fibers made from (left) PAN, (middle) PAN/PMMA, and (right) PAN-b-PMMA. PAN-b-PMMA was used to create carbon fibers with more uniformly sized and spaced pores |
| En ligne : |
https://drive.google.com/file/d/1j8kf1Uk122S_tNNp_dhJPgwixGmEf58f/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32771 |
in CHEMICAL FIBERS INTERNATIONAL > Vol. 69, N° 2 (06/2019) . - p. 84-85
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Carbon fibers with uniform porous structure using block copolymers in CHEMICAL FIBERS INTERNATIONAL, Vol. 69, N° 2 (06/2019)
