Water absorption of water-based anticorrosive coatings and its effect on mechanical property and adhesive performance / Takuya Kamisho ; Yukitoshi Takeshita ; Seizo Sakata ; Takashi Sawada in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 2 (03/2014)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 11, N° 2 (03/2014) . - p. 199-205 Titre : Water absorption of water-based anticorrosive coatings and its effect on mechanical property and adhesive performance Type de document : texte imprimé Auteurs : Takuya Kamisho, Auteur ; Yukitoshi Takeshita, Auteur ; Seizo Sakata, Auteur ; Takashi Sawada, Auteur Année de publication : 2014 Article en page(s) : p. 199-205 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion Analyse mécanique dynamique Anticorrosifs Essais accélérés (technologie) Humidité -- Absorption:Eau -- Absorption Revêtements en phase aqueuse:Peinture en phase aqueuse Viscoélasticité Index. décimale : 667.9 Revêtements et enduits Résumé : We focused on the water absorption of newly developed water-based anticorrosive coatings, which contain low volatile organic compounds. We investigated (1) the water absorption behavior of the coatings, (2) the effect of water absorption on the mechanical property of the coatings, and (3) the relationship between the water-absorbing properties and adhesive performance under accelerated aging conditions. It was found that the water absorption of the coatings indicated Fickian diffusion, and the saturated water content M ∞ and diffusion coefficient D of the coatings were quantitatively determined. The storage modulus E′ of the coatings decreased due to water absorption. However, in the coating that exhibited higher crosslink density, the effect of water absorption on the decrease in E′ was relatively small in spite of its higher M ∞ . The lower M ∞ and higher D coating resulted in better adhesive performance than the higher M ∞ and lower D coating. Thus, M ∞ value affected adhesive performance under accelerated aging conditions much more than D value. Note de contenu : - EXPERIMENTAL : Sample preparation - Water absorption test - Dynamic mechanical analysis - Accelerated aging test - Pull-of test - RESULTS AND DISCUSSION : Water absorption behavior - Effect of water absorption on mechanical property - Adhesive performance of coatings under accelerated aging conditions DOI : 10.1007/s11998-013-9517-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9517-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21164 [article]

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