[article]
| Titre : |
Facile preparation of anticorrosive and decorative multifunctional coatings via the inclusion of pearlescent oxide-covered mica pigments |
| Type de document : |
texte imprimé |
| Auteurs : |
Walaa M. Abd El-Gawad, Auteur ; Essam A. Mossalam, Auteur ; Mohamed M. Selim, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 603-622 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Anticorrosifs
Anticorrosion
Arrachement (matériaux)
Brillance (optique) -- Mesure
Caractérisation
Colorimétrie
Epoxydes
Evaluation
Formulation (Génie chimique)
Mica
Oxydes métalliques
Pigments nacrés
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements décoratifs
Revêtements décoratifs:Peinture décorative
Revêtements organiques
Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The keynote of this work was to prepare cost-saving intensely colored pearlescent pigments with anticorrosive properties via deposition of a low ratio of expensive mixed oxides on mica to be applied in decorative and anticorrosive multifunctional coatings. Herein, a mixture of CeO2 and Fe2O3 was precipitated on mica to prepare anticorrosive pigment with golden color, while brilliant intensive orange pigment was prepared via the deposition of ZrO2.Fe2O3 mix on mica. The prepared pearlescent pigments based on mica flakes covered with CeO2.Fe2O3 and ZrO2.Fe2O3 were characterized using scanning electron microscopy, energy-dispersive X-ray analysis, X-ray fluorescence, and thermal gravimetric analysis. The mixed oxide-covered mica pigments (Ce-Fe@M and Zr-Fe@M) were applied in two paint formulations in addition to one formulation containing mica for comparison. The color of the resulting coatings was investigated utilizing the CIELab technique. Additionally, the inhibitive properties of the coatings were determined using potentiodynamic anodic polarization, open circuit voltage, linear polarization resistivity, and electrochemical impedance spectroscopy techniques. The results declared that the color of the coating containing CeO2.Fe2O3@M is gold and that of ZrO2.Fe2O3/M is brilliant orange. Moreover, the results deduced that the resistance of coating containing Ce-Fe@M ranged between (5061–4887 Ω) and that containing Zr-Fe@M is from 6846 to 3290 Ω, while coating based on mica is the least. These results revealed that the present study has succeeded in offering both anticorrosive and decorative functions in a single-layered coat. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Characterization of the prepared pigments - Application in coatings - Methods of testing and evaluation of coating
- RESULTS AND DISCUSSION : Pigments characterization - FTIR - Coatings morphology - Corrosion results - Color and gloss measurements - Mechanical properties of the coatings - Pull-off strength results
- Table 1 : The paint formulations
- Table 2 : XRF analysis of mica, Ce-Fe@M, and Zr-Fe@M
- Table 3 : Corrosion resistance of the coatings containing mica, Ce-Fe@M, and Zr-Fe@M
- Table 4 : Electrochemical measurements results obtained from potentiodynamicanodic polarization and OCV technique
- Table 5 : EIS data of the coatings containing mica, Ce-Fe@M, and Zr-Fe@MTable 6 Color and gloss results of coatings containing mica, Ce-Fe@M, and Zr-Fe@M |
| DOI : |
https://doi.org/10.1007/s11998-022-00693-z |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00693-z.pdf?pdf=button |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39306 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 603-622
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Facile preparation of anticorrosive and decorative multifunctional coatings via the inclusion of pearlescent oxide-covered mica pigments in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
