[article]
| Titre : |
Modification of graphene and graphene oxide and their applications in anticorrosive coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Jing Li, Auteur ; Hongpeng Zheng, Auteur ; Li Liu, Auteur ; Fandi Meng, Auteur ; Yu Cui, Auteur ; Fuhui Wang, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 311-331 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Epoxydes
GraphèneLe 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 -- Propriétés barrières
Polymères
Revêtements organiques
Zinc
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this article, the applications and modification methods of graphene-based materials [graphene and graphene oxide (GO)] in an organic anticorrosive coating were reviewed. First, this paper introduces the application of graphene-based materials with barrier property and electrical conductivity in anticorrosive coating and then explains the protection mechanisms, respectively. In addition, this paper puts forward some problems of graphene in the anticorrosive coatings, such as how to solve the dispersion of graphene, how to improve the compatibility between graphene and the polymer matrix, and how to enhance the adhesion between the coating and metal interface. Second, this paper summarizes the reported modification methods of graphene and GO in terms of covalent and noncovalent modification. For covalent modification, the modification methods of different functional groups of GO are summarized, such as modification of epoxy group (–C(O)C–), hydroxyl group (–OH), and carboxyl group (–COOH). As for the noncovalent modification, the modification methods of graphene and GO are summarized from the three aspects of π−π interaction, hydrogen bond interaction, and electrostatic interaction, respectively. Finally, the applications of graphene-based materials in anticorrosive coatings are summarized and prospected. |
| Note de contenu : |
- Graphene-based anticorrosive coatings : Application of graphene-based anticorrosive coatings - Protection mechanism of graphene-based anticorrosive coating - Problems of graphene-based fillers in anticorrosive coatings
- Modification of graphene-based materials : Covalent modification - Noncovalent modification - Comparison of modification methods
- Table 1 : Summary of covalent modification of GO
- Table 2 : Summary of noncovalent modification of graphene and GO |
| DOI : |
https://doi.org/10.1007/s11998-020-00435-z |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00435-z.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35597 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 2 (03/2021) . - p. 311-331
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