Graphene-based polymer coatings for preventing marine corrosion : a review / Amit Sharma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 413-432 Titre : Graphene-based polymer coatings for preventing marine corrosion : a review Type de document : texte imprimé Auteurs : Amit Sharma, Auteur ; Sumit Sharma, Auteur Année de publication : 2023 Article en page(s) : p. 413-432 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion Enrobage (technologie) Graphène -- Synthèse 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. Métaux -- Revêtements protecteurs Protection cathodique Revêtements antisalissures:Peinture antisalissures Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : In recent years, many breakthroughs in research on graphene as a corrosion-resistant coating for metal have been witnessed due to its excellent properties like chemical stability, mechanical strength, permeability, etc. The present review discusses graphene and its composite as an anticorrosive coating for marine applications. The economic and environmental losses caused by the corrosion in day-to-day life are large, and coatings are one of the preventive measures to reduce these losses. The corrosion gets accelerated when some significant factors like salinity, pH, water velocity, temperature, and dissolved oxygen content also come into picture. The excellent physical and chemical properties for graphene like high strength electrical conductivity, large surface area, etc., make it a potential candidate for a number of applications. The different techniques for the synthesis of graphene and its derivatives like graphene oxide and reduced graphene oxide have been also briefed in this review. The pure graphene coatings have shown excellent anticorrosive properties. However, defects in pure graphene coating have a substantial impact compared to multilayering for anticorrosive behavior. Graphene-based composites are more durable and reliable than pure graphene coating. The various techniques for the synthesis of graphene-based polymer coatings are solution mixing, melt mixing, and in situ polymerization. In the marine environment, graphene should be dispersed uniformly parallel to the metallic surface to provide excellent erosion corrosion properties. However, cathodic protection is a crucial issue in organic coatings, and zinc-rich graphene coatings are effective in case of defects in the coating. Other functional properties of graphene-based polymeric coatings like antifouling, hydrophobicity, better mechanical and wear properties, UV protection, and electrical conductivity give an edge to these coatings in marine conditions. Note de contenu : - MARINE CORROSION : Mechanism of corrosion - Factors triggering marine corrosion - GRAPHENE AND ITS DERIVATIVES : Synthesis routes of graphene and its derivatives - GRAPHENE AS AN ANTICORROSIVE COATING - GRAPHENE COATING : CHALLENGES AND OPTIMIZATION MEASURES - GRAPHENE COMPOSITE COATING : Synthesis route of graphene-based polymer coatings - Optimization measure for graphene-based composite coating - Graphene conductance and cathodic protection - Graphene composite coating as a functional coating - FUTURE SCOPE - Table 1: Various synthesis routes of GO - Table 2 : Graphene-based composite coatings DOI : https://doi.org/10.1007/s11998-022-00730-x En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00730-x.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39289 [article]

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