A method for preparation and application of micronized ferrite pigments in anticorrosive solvent-based paints / Mahmoud A. Abd El-Ghaffar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 6 (11/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 6 (11/2010) . - p. 703-713 Titre : A method for preparation and application of micronized ferrite pigments in anticorrosive solvent-based paints Type de document : texte imprimé Auteurs : Mahmoud A. Abd El-Ghaffar, Auteur ; Nivin M. Ahmed, Auteur ; Elham A. Youssef, Auteur Année de publication : 2010 Article en page(s) : p. 703-713 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier -- Laminage Anticorrosion Ferrites (matériaux magnétiques) Pigments inorganiques Revêtements Index. décimale : 667.9 Revêtements et enduits Résumé : This work presents a method of preparing single-, double-, and triple-cation ferrite pigments by employing simple chemical techniques to study their corrosion protection properties. The prepared pigments were characterized using X-ray diffraction and scanning electron microscopy. All prepared ferrite pigments were evaluated using ASTM methods. Anticorrosive paint formulations were performed using different prepared pigment loadings. The physico-mechanical and corrosion properties of dry paint films were examined. The tests revealed that the prepared ferrite pigments show excellent anticorrosive behavior, and that the best among them in performance are zinc and zinc magnesium. Calcium, zinc–calcium, and zinc–magnesium–calcium ferrites show better performance in high pigment loadings, while magnesium ferrite pigments show good results only in low pigment loading. DOI : 10.1007/s11998-009-9229-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9229-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10397 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
012672	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Reduction of cathodic delamination rates of anticorrosive coatings using free radical scavengers in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 6 (11/2010)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 6 (11/2010) Titre : Reduction of cathodic delamination rates of anticorrosive coatings using free radical scavengers Type de document : texte imprimé Année de publication : 2010 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier -- Laminage Adhésion Antioxydants Délaminage Epoxydes Revêtements -- Corrosion Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : Cathodic delamination is one of the major modes of failure for anticorrosive coatings subjected to a physical damage and immersed in seawater. The cause of cathodic delamination has been reported to be the result of a chemical attack at the coating–steel interface by free radicals and peroxides formed as intermediates in the cathodic reaction during the corrosion process. In this study, antioxidants (i.e., free radical scavengers and peroxide decomposers) have been incorporated into various generic types of coatings to investigate the effect of antioxidants on the rate of cathodic delamination of epoxy coatings on cold rolled steel. The addition of <5 wt% free radical scavengers to epoxy coatings improved the resistance toward cathodic delamination by up to 50% during seawater immersion, while peroxide decomposers had a limited effect. Testing using substrates prepared from stainless steel, copper, aluminum, galvanized steel, and brass also showed a reduction in the rate of cathodic delamination when the coating was modified with a free radical scavenger. The protective mechanism of free radical scavengers investigated for the primers are similar to that of antioxidants used for protection against photochemical degradation by UV-radiation of top coatings. Both substrate corrosion and degradation of a coating exposed to UV-radiation lead to the formation of free radicals as reactive intermediates. DOI : 10.1007/s11998-010-9267-0 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9267-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10405 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
012672	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)