Evaluation of eco-friendly anticorrosive pigments for paints in service conditions

The performance of different replacements for chromates was studied. The anticorrosive properties of seven phosphate-based pigments, a calcium-exchange silica and a ferrite were assessed by electrochemical techniques and formulating solvent-borne paints with epoxy and alkyd resins. Paints contained...

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Detalles Bibliográficos
Autores principales: Deyá, Marta Cecilia, Blustein, Guillermo, Del Amo, Delia Beatriz, Romagnoli, Roberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ingeniería Química
Anticorrosive pigments
Outdoor tests
Paint
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/94931
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-94931
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Anticorrosive pigments
Outdoor tests
Paint
spellingShingle Ingeniería Química
Anticorrosive pigments
Outdoor tests
Paint
Deyá, Marta Cecilia
Blustein, Guillermo
Del Amo, Delia Beatriz
Romagnoli, Roberto
Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
topic_facet Ingeniería Química
Anticorrosive pigments
Outdoor tests
Paint
description The performance of different replacements for chromates was studied. The anticorrosive properties of seven phosphate-based pigments, a calcium-exchange silica and a ferrite were assessed by electrochemical techniques and formulating solvent-borne paints with epoxy and alkyd resins. Paints contained 30% by volume of anticorrosive pigment, with respect to the total pigment content. The anticorrosive performance of paints was evaluated by accelerated tests (salt spray chamber) and electrochemical essays (corrosion potential and ionic resistance). Outdoor exposure tests were carried out in an urban-industrial environment during 8 years. The anticorrosive performance of the tested paints showed that there is not a clear relationship between the laboratory tests and the outdoors exposition and that none of them, by themselves can predict the behaviour of the paint under service. However, electrochemical essays with pigments may give an orientation about pigment performance in anticorrosive paints. As a general rule, if the pigment reduces notably steel corrosion rate and generates a rather high apparent polarization resistance a good anticorrosive performance may be expected.
format Articulo
Articulo
author Deyá, Marta Cecilia
Blustein, Guillermo
Del Amo, Delia Beatriz
Romagnoli, Roberto
author_facet Deyá, Marta Cecilia
Blustein, Guillermo
Del Amo, Delia Beatriz
Romagnoli, Roberto
author_sort Deyá, Marta Cecilia
title Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
title_short Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
title_full Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
title_fullStr Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
title_full_unstemmed Evaluation of eco-friendly anticorrosive pigments for paints in service conditions
title_sort evaluation of eco-friendly anticorrosive pigments for paints in service conditions
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/94931
work_keys_str_mv AT deyamartacecilia evaluationofecofriendlyanticorrosivepigmentsforpaintsinserviceconditions
AT blusteinguillermo evaluationofecofriendlyanticorrosivepigmentsforpaintsinserviceconditions
AT delamodeliabeatriz evaluationofecofriendlyanticorrosivepigmentsforpaintsinserviceconditions
AT romagnoliroberto evaluationofecofriendlyanticorrosivepigmentsforpaintsinserviceconditions
bdutipo_str Repositorios
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