Irradiation-cured graphene composite films : a comparison between UV and EB curing / Ziyue Wei in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 5 (09/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 5 (09/2023) . - p. 1713-1726 Titre : Irradiation-cured graphene composite films : a comparison between UV and EB curing Type de document : texte imprimé Auteurs : Ziyue Wei, Auteur ; Lingyun Wang, Auteur ; Ren Liu, Auteur ; Jing Luo, Auteur Année de publication : 2023 Article en page(s) : p. 1713-1726 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Graphène Le graphène est un cristal bidimensionnel (monoplan) de carbone dont l'empilement constitue le graphite. Il a été isolé en 2004 par Andre Geim, du département de physique de l'université de Manchester, qui a reçu pour cette découverte le prix Nobel de physique en 2010 avec Konstantin Novoselov. Il peut être produit de deux manières : par extraction mécanique du graphite (graphène exfolié) dont la technique a été mise au point en 2004, ou par chauffage d'un cristal de carbure de silicium, qui permet la libération des atomes de silicium (graphène epitaxié). Record en conduction thermique jusqu'à 5300 W.m-1.K-1. C'est aussi un matériaux conducteur. Matériaux hybrides Mesure Revêtements -- Séchage sous rayonnement électronique Revêtements -- Séchage sous rayonnement ultraviolet Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : In this work, a series of graphene-based composite films were prepared via electron beam (EB) or ultraviolet (UV) irradiation. The influence of the graphene content as well as the irradiation dose on the curing behavior and properties of EB/UV-cured graphene composite films was systematically studied. The curing behavior of the composite films was investigated by the double bond conversion rate as well as the gel content, and the properties of the composite films were studied by TGA analysis and tensile tests. For EB-cured graphene composite films, the curing degree increased with the increase in the irradiation dose (60–360 kGy), and the upper and lower surface was uniformly cured. The curing degree and curing depth of the EB-cured films were not affected by the addition of graphene (0.0–5.0 wt.%). Compared to pure resin film, the EB-cured graphene composite film showed enhanced tensile properties. For UV-cured graphene composite films, the curing degree was also enhanced with the increasing irradiation dose, but it decreased significantly with the increase in graphene content (0.0–5.0 wt.%). The curing degrees of upper and lower surfaces of the UV-cured graphene composite film were not uniform, and the curing depth decreased with the increase in graphene concentration. The addition of graphene had an adverse effect on the thermal and mechanical properties of the UV-cured composite film. Note de contenu : - EXPERIMENT : Materials - The preparation of graphene composite films via UV/EB curing - Characterization and measurement - RESULTS AND DISCUSSION : Curing Behavior of graphene composite films - Properties of irradiation-cured graphene composite films - Table 1 : The curing depths of EB-cured graphene composite films - Table 2 : The curing depths of UV-cured graphene composite films Properties of irradiation-cured graphene composite films DOI : https://doi.org/10.1007/s11998-023-00776-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00776-5.pdf?pdf=button Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39983 [article]

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