Low-cost fabrication and physicochemical characterization of ZnFe2O4 nanoparticles as an efficient multifunctional inorganic pigment / Mostafa A. Sayed in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 6 (11/2023)

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 6 (11/2023) . - p. 1997-2006 Titre : Low-cost fabrication and physicochemical characterization of ZnFe2O4 nanoparticles as an efficient multifunctional inorganic pigment Type de document : texte imprimé Auteurs : Mostafa A. Sayed, Auteur ; W. M. A. Abdelmaksoud, Auteur ; Said M. Teleb, Auteur ; Adel M. El-Din, Auteur ; Mohamed M. Abo-Aly, Auteur Année de publication : 2023 Article en page(s) : p. 1997-2006 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Caractérisation Composés inorganiques -- Synthèse Essais (technologie) Evaluation Ferrites de zinc Formulation (Génie chimique) Pigments inorganiques Revêtements protecteurs Revêtements:Peinture Spectroscopie d'impédance électrochimique Test d'immersion Index. décimale : 667.9 Revêtements et enduits Résumé : The pursuit of low-cost manufacturing of newly effective pigments is a pressing economic need. Thus, in this work, low-cost ZnFe2O4 spinel nanoparticles (ZF-NPs) with an average diameter of 20 nm were successfully synthesized using a simple sol–gel method, which can be extended for large-scale fabrication of a reddish nano pigment. TGA/DTA, XRD, DRS, HRTEM, and SEM/EDX investigations were used to characterize the as-prepared product. The color of synthesized NPs was studied using CIE L*a*b* colorimetric method with color coordinates of L* = 41.7, a* = 72.2, and b* = 48.8. The newly developed pigment was examined to be superior to the traditional pigment (M6001/Fe2O3: L* = 30.4, a* = 42.16, and b* = 45.7). After that, the synthesized nano pigment was integrated into both ink and paint formulations as a multifunctional coating. The inclusion of synthesized nano pigment in metal coating printing ink formulation was done to produce a good alternative and cost-effective substitute for the commercially available pigment used in the inks industry. Also, the effect of the fabricated nanoparticles on corrosion resistance and thermal stability of epoxy-based paint formulations was evaluated using different standard tests. Therefore, the ZnFe2O4 pigment should be applied as a highly efficient inorganic nano pigment. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of ZnFe2O4 NPs - Instrumentation - Pigment evaluation - Corrosion tests - RESULTS AND DISCUSSION : Characterization of the fabricated ZF-NPs - Applications of the synthesized ZF nano pigment - Table 1 : CIE L*a*b* color coordinates of synthesized ZF and M6001 pigments - Table 2 : Metal coating ink formulations according to Pachin company - Table 3 : Paint formulation incorporating ZF nano pigment - Table 4 : Corrosion results of the coated film after immersion in 3.5% NaCl for 28 days - Table 5 : EIS data of the ZF-NPs-coated film Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40176 [article]

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