Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests

Insoluble metallic benzoates can be prepared from the corresponding soluble salts. Soluble benzoates can be used as inhibitors in neutral solutions while insoluble ones can be used as anticorrosive pigment for paints. This paper describes the experimental procedure to prepare aluminum basic benzoate...

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Autores principales:	Blustein, Guillermo, Romagnoli, Roberto, Jaen, Juliana María, Di Sarli, Alejandro Ramón, Del Amo, Delia Beatriz
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2007
Materias:	Química Alumininum Anticorrosive Sepectroscopy
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/170890
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-170890
record_format	dspace
spelling	I19-R120-10915-1708902024-10-01T04:12:55Z http://sedici.unlp.edu.ar/handle/10915/170890 Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests Blustein, Guillermo Romagnoli, Roberto Jaen, Juliana María Di Sarli, Alejandro Ramón Del Amo, Delia Beatriz 2007 2024-09-30T17:26:58Z en Química Alumininum Anticorrosive Sepectroscopy Insoluble metallic benzoates can be prepared from the corresponding soluble salts. Soluble benzoates can be used as inhibitors in neutral solutions while insoluble ones can be used as anticorrosive pigment for paints. This paper describes the experimental procedure to prepare aluminum basic benzoate (AlC14H11O5) to be used in anticorrosive paints. The anticorrosive properties of aluminum basic benzoate were assessed by electrochemical techniques (corrosion potential and linear polarization measurements). The nature of the compounds forming the protective layer was determined using spectroscopic techniques (scanning electron microscopy /energy-dispersive x-ray microanalysis [SEM-EDAX], ultraviolet [UV]-visible diffuse reflectance, Fourier transform infrared [FTIR], and Mössbauer). In a second stage, the anticorrosive properties of the pigment were evaluated by incorporating it in alkyd and epoxy anticorrosive paints, which, in turn, were evaluated by accelerated (salt spray and humidity tests) and electrochemical measurements (electrochemical impedance spectroscopy). The morphology and the nature of the protective layer grown under the paint film in the salt spray chamber was assessed using SEM and UV-visible diffuse reflectance spectroscopy. Experimental results showed that basic aluminum benzoate was adequate to formulate solvent and water-borne epoxy anticorrosive paints with improved anticorrosive performance when it is used in combination with zinc oxide (ZnO). Zinc oxide counteracted the intrinsic acidity of basic aluminum benzoate. Solvent alkyd paints could also be prepared but with lower performance. Centro de Investigación y Desarrollo en Tecnología de Pinturas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Química Alumininum Anticorrosive Sepectroscopy
spellingShingle	Química Alumininum Anticorrosive Sepectroscopy Blustein, Guillermo Romagnoli, Roberto Jaen, Juliana María Di Sarli, Alejandro Ramón Del Amo, Delia Beatriz Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
topic_facet	Química Alumininum Anticorrosive Sepectroscopy
description	Insoluble metallic benzoates can be prepared from the corresponding soluble salts. Soluble benzoates can be used as inhibitors in neutral solutions while insoluble ones can be used as anticorrosive pigment for paints. This paper describes the experimental procedure to prepare aluminum basic benzoate (AlC14H11O5) to be used in anticorrosive paints. The anticorrosive properties of aluminum basic benzoate were assessed by electrochemical techniques (corrosion potential and linear polarization measurements). The nature of the compounds forming the protective layer was determined using spectroscopic techniques (scanning electron microscopy /energy-dispersive x-ray microanalysis [SEM-EDAX], ultraviolet [UV]-visible diffuse reflectance, Fourier transform infrared [FTIR], and Mössbauer). In a second stage, the anticorrosive properties of the pigment were evaluated by incorporating it in alkyd and epoxy anticorrosive paints, which, in turn, were evaluated by accelerated (salt spray and humidity tests) and electrochemical measurements (electrochemical impedance spectroscopy). The morphology and the nature of the protective layer grown under the paint film in the salt spray chamber was assessed using SEM and UV-visible diffuse reflectance spectroscopy. Experimental results showed that basic aluminum benzoate was adequate to formulate solvent and water-borne epoxy anticorrosive paints with improved anticorrosive performance when it is used in combination with zinc oxide (ZnO). Zinc oxide counteracted the intrinsic acidity of basic aluminum benzoate. Solvent alkyd paints could also be prepared but with lower performance.
format	Articulo Articulo
author	Blustein, Guillermo Romagnoli, Roberto Jaen, Juliana María Di Sarli, Alejandro Ramón Del Amo, Delia Beatriz
author_facet	Blustein, Guillermo Romagnoli, Roberto Jaen, Juliana María Di Sarli, Alejandro Ramón Del Amo, Delia Beatriz
author_sort	Blustein, Guillermo
title	Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
title_short	Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
title_full	Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
title_fullStr	Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
title_full_unstemmed	Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
title_sort	aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests
publishDate	2007
url	http://sedici.unlp.edu.ar/handle/10915/170890
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Aluminum basic benzoate-based coatings: evaluation of anticorrosive properties by electrochemical impedance spectroscopy and accelerated tests

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