Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum
Tara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispe...
| Autores principales: | , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Español |
| Publicado: |
2021
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/135514 |
| Aporte de: |
| id |
I19-R120-10915-135514 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Español |
| topic |
Ingeniería Química aluminum corrosion green anticorrosive pigment tannins tara wash-primer |
| spellingShingle |
Ingeniería Química aluminum corrosion green anticorrosive pigment tannins tara wash-primer Byrne, Christian Eduardo D'Alessandro, Oriana Deyá, Marta Cecilia Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| topic_facet |
Ingeniería Química aluminum corrosion green anticorrosive pigment tannins tara wash-primer |
| description |
Tara tannin is studied as an inhibitor of aluminum corrosion, immersed in an aerated and near-neutral NaCl solution and in a wash-primer formulation. Electrochemical tests prove that tara tannins provide good corrosion resistance for aluminum, and scanning electron microscopy coupled to energy dispersive x-ray spectroscopy shows a low formation of corrosion products, absence of Cl and presence of C. These results indicate that tannins act as a mixed-type inhibitor without changing the mechanism of oxygen or aluminum reactions, and that tannin is adsorbed on aluminum surfaces forming a compact hydrophobic barrier that blocks anodic and cathodic areas. A tara tannin primer was formulated and applied on aluminum. Its anticorrosive properties were studied by electrochemical techniques and humidity chamber testing, in which it exhibited an acceptable performance compared with a zinc tetroxychromate primer. Taking into account their less harmful environmental impact, tara tannins are proposed as an alternative to chromates in the formulation of wash-primers. |
| format |
Articulo Articulo |
| author |
Byrne, Christian Eduardo D'Alessandro, Oriana Deyá, Marta Cecilia |
| author_facet |
Byrne, Christian Eduardo D'Alessandro, Oriana Deyá, Marta Cecilia |
| author_sort |
Byrne, Christian Eduardo |
| title |
Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| title_short |
Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| title_full |
Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| title_fullStr |
Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| title_full_unstemmed |
Tara Tannins as a Green Sustainable Corrosion Inhibitor for Aluminum |
| title_sort |
tara tannins as a green sustainable corrosion inhibitor for aluminum |
| publishDate |
2021 |
| url |
http://sedici.unlp.edu.ar/handle/10915/135514 |
| work_keys_str_mv |
AT byrnechristianeduardo taratanninsasagreensustainablecorrosioninhibitorforaluminum AT dalessandrooriana taratanninsasagreensustainablecorrosioninhibitorforaluminum AT deyamartacecilia taratanninsasagreensustainablecorrosioninhibitorforaluminum |
| bdutipo_str |
Repositorios |
| _version_ |
1764820455432126464 |