| Titre : |
Corrosion protection ability of hydrophobic zinc based coordination polymers on mild steel surface |
| Type de document : |
texte imprimé |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 1145-1155 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Angle de contact
Anticorrosifs
Anticorrosion
composés de coordination
Corrosion -- Analyse
Diffractométrie de rayons X
Fourier, Spectroscopie infrarouge à transformée de
Hydrophobie
Métaux -- Revêtements protecteurs
Morphologie (matériaux)
Polyfluorure de vinylidène
Polymères -- Synthèse
Revêtements organiques
Zinc
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A series of Zn2+ based hydrophobic coordination polymers (CPs) have been synthesized by varying methylene spacers length (m = 1 to m = 6) of aliphatic dicarboxylic acids followed by reaction with the zinc acetate by using hydrothermal method. The synthesized CPs were coated on the mild steel (MS) specimens to investigate the effect of methylene spacers length of dicarboxylic acids on hydrophobicity and corrosion behavior. The synthesized CPs and their coatings on MS have been characterized by various instrumental techniques such as Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD), Field Emission Scanning Electron Microscopy (FE-SEM), water contact angle (WCA) measurements. FTIR and PXRD measurements confirm the formation of CPs whereas the FE-SEM images of suberic acid polymer (SUAP) reveal compact distribution of sphere-like aggregates. WCA measurements showed that the bare MS including CPs coatings on MS up to methylene spacers length m = 4 is hydrophilic in nature; however, the coating of longest methylene spacers length CP (SUAP, m = 6) showed hydrophobic nature with water contact angle of ~ 108.6°. Furthermore, the obtained hydrophobic SUAP CP with polyvinylidene fluoride (PVDF) as binder was coated on MS to study its anticorrosion behavior for the protection of MS. The anticorrosion performance of the developed SUAP coating was investigated by open-circuit potential (OCP) and potentiodynamic polarization techniques. The corrosion rate has been calculated from potentiodynamic polarization curves for the bare MS and SUAP coated MS showed significant improvement in the anticorrosion behavior of the developed SUAP coating. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURE : Materials and method - Synthesis of coordination polymers - Coatings - Corrosion study
- RESULTS AND DISCUSSION : Designing of coordination polymers -
FTIR analysis - Morphology - Powder X-ray diffraction analysis - Contact angle - Corrosion studies
- Table 1 : The composition used for preparation of coatings
- Table 2 : Potentiodynamic polarization parameters for bare mild steel (MS), and coated MS specimens in 3.5 wt.% NaCl |
| DOI : |
https://doi.org/10.1007/s11998-022-00734-7 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00734-7.pdf?pdf=button% [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39454 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 1145-1155
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Corrosion protection ability of hydrophobic zinc based coordination polymers on mild steel surface in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
