Zinc tripolyphosphate: an anticorrosive pigment for paints

The aim of this paper was to study the efficiency of zinc tripolyphosphate as an anticorrosive pigment for paints. A procedure to prepare the pigment was outlined and its anticorrosive properties evaluated following the electrochemical behaviour of a steel electrode in pigment suspensions. In a seco...

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Autores principales: Deyá, Marta Cecilia, Vetere, Vicente Francisco, Romagnoli, Roberto, Del Amo, Delia Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Química
Zinc tripolyphosphate
paints
anticorrosive paints
pigments
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/171148
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SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-171148
record_format dspace
spelling I19-R120-10915-1711482024-10-04T20:50:49Z http://sedici.unlp.edu.ar/handle/10915/171148 Zinc tripolyphosphate: an anticorrosive pigment for paints Le Tripolyphosphate de zinc: un pigmenl anticorrosif pour les peinlures Deyá, Marta Cecilia Vetere, Vicente Francisco Romagnoli, Roberto Del Amo, Delia Beatriz 2003 2024-10-04T18:10:05Z en Química Zinc tripolyphosphate paints anticorrosive paints pigments The aim of this paper was to study the efficiency of zinc tripolyphosphate as an anticorrosive pigment for paints. A procedure to prepare the pigment was outlined and its anticorrosive properties evaluated following the electrochemical behaviour of a steel electrode in pigment suspensions. In a second stage, solvent-borne paints containing barium sulphate, talc and titanium dioxide together with 30 or 10% v/v (by volume) of zinc tripolyphosphate, with respect to the total pigment content, and PVC/CPVC (pigment volume concentration/critical pigment volume concentration) ratio 0.8 were formulated. Two resins were chosen as film-forming materials: an alkyd and an epoxy-polyamide (1:1) resin. The performance of the resulting anticorrosive paints was assessed by accelerated (salt-spray and humidity chambers) and electrochemical tests (corrosion potential, ionic resistance and polarisation resistance). It was demonstrated that zinc tripolyphosphate inhibited corrosion when incorporated into a paint film. It showed an excellent performance when employed with the alkyd resin. Good correlation was obtained between accelerated and electrochemical tests. Cet article a comme but l’étude de l’efficacité du tripolyphosphate de zinc en tant que pigment anticorrosit pour la peinture. Les grandes lignes des procédés de préparation ont été exposées et ses propriétés anticorrosives ont été évaluées selon le comportement d’une électrode d’acier dans des suspensions du pigment. Au cours d’une deuxième étape on a formulé des peintures diluables au solvant et contenant du suitate de barium, du talc, et du dioxide de titane aussi bien que 30 ou 10% v/v du pigment tripolyphosphate de zinc par rapport au contenu total en-pigments dans le rapport de 0.8 CPV/CPVC (concentration pigmentaire volumique/concentratation pigmentaire volumique critique) Deux résines ont été choisies pour former le film, l’une alkyde, l’autre une époxy-polyamide (1:1). La performance des peintures anticorrosives qui en provenaient a été évaluée par des essais accélérés (enceintes d’essais en brouillard salin et en humidité) et par des essais électrochimiques (potentiel de corrosion, résistance ionique, résistance de polarisation). Nous avons démontré que le tripolyphosphate de zinc quand il est incorporé à un film de peinture inhibe la corrosion. Il a fait preuve d’une performance excellente quand il était employé avec la résine alkyde. Il y avait une bonne corrélation entre les résultats des essais accélérés et ceux des essais électrochimiques. 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 79-85
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Zinc tripolyphosphate
paints
anticorrosive paints
pigments
spellingShingle Química
Zinc tripolyphosphate
paints
anticorrosive paints
pigments
Deyá, Marta Cecilia
Vetere, Vicente Francisco
Romagnoli, Roberto
Del Amo, Delia Beatriz
Zinc tripolyphosphate: an anticorrosive pigment for paints
topic_facet Química
Zinc tripolyphosphate
paints
anticorrosive paints
pigments
description The aim of this paper was to study the efficiency of zinc tripolyphosphate as an anticorrosive pigment for paints. A procedure to prepare the pigment was outlined and its anticorrosive properties evaluated following the electrochemical behaviour of a steel electrode in pigment suspensions. In a second stage, solvent-borne paints containing barium sulphate, talc and titanium dioxide together with 30 or 10% v/v (by volume) of zinc tripolyphosphate, with respect to the total pigment content, and PVC/CPVC (pigment volume concentration/critical pigment volume concentration) ratio 0.8 were formulated. Two resins were chosen as film-forming materials: an alkyd and an epoxy-polyamide (1:1) resin. The performance of the resulting anticorrosive paints was assessed by accelerated (salt-spray and humidity chambers) and electrochemical tests (corrosion potential, ionic resistance and polarisation resistance). It was demonstrated that zinc tripolyphosphate inhibited corrosion when incorporated into a paint film. It showed an excellent performance when employed with the alkyd resin. Good correlation was obtained between accelerated and electrochemical tests.
format Articulo
Articulo
author Deyá, Marta Cecilia
Vetere, Vicente Francisco
Romagnoli, Roberto
Del Amo, Delia Beatriz
author_facet Deyá, Marta Cecilia
Vetere, Vicente Francisco
Romagnoli, Roberto
Del Amo, Delia Beatriz
author_sort Deyá, Marta Cecilia
title Zinc tripolyphosphate: an anticorrosive pigment for paints
title_short Zinc tripolyphosphate: an anticorrosive pigment for paints
title_full Zinc tripolyphosphate: an anticorrosive pigment for paints
title_fullStr Zinc tripolyphosphate: an anticorrosive pigment for paints
title_full_unstemmed Zinc tripolyphosphate: an anticorrosive pigment for paints
title_sort zinc tripolyphosphate: an anticorrosive pigment for paints
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/171148
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