Direct-to-metal UV-cured hybrid coating for the corrosion protection of aircraft aluminium alloy - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Corrosion Science Année : 2014

Direct-to-metal UV-cured hybrid coating for the corrosion protection of aircraft aluminium alloy

Résumé

Finding eco-efficient and environmentally viable alternatives to chromate coatings represents a fundamental milestone in the aerospace industry. Here, we show a chromate-free approach to protective hybrid coatings on aluminium alloy (AA2024-T3) departing from photoinduced sol–gel and cationic polymerizations. Beginning with a film of n-alkyltrimethoxysilane and diepoxy monomer, we rely on photogenerated superacids to induce the single step formation of two inorganic and organic barrier networks. Such system combines the unique aspects of photopolymerization including fast reactions, temporal control, solvent-free composition and temperature independence. Used without chemical conversion coating or anodizing, some films have passed 2000h of salt spray testing.
Fichier principal
Vignette du fichier
Ni_25466.pdf (1 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02490561 , version 1 (25-02-2020)

Identifiants

Citer

Lingli Ni, Abraham Chemtob, Céline Croutxé-Barghorn, Nadia Moreau, Thierry Bouder, et al.. Direct-to-metal UV-cured hybrid coating for the corrosion protection of aircraft aluminium alloy. Corrosion Science, 2014, 89, pp.242-249. ⟨10.1016/j.corsci.2014.09.006⟩. ⟨hal-02490561⟩
72 Consultations
131 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More