Corrosion - inhibiting properties of molybdenum-containing pigments in coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901733" target="_blank" >RIV/00216275:25310/16:39901733 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1108/ACMM-09-2014-1433" target="_blank" >http://dx.doi.org/10.1108/ACMM-09-2014-1433</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1108/ACMM-09-2014-1433" target="_blank" >10.1108/ACMM-09-2014-1433</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Corrosion - inhibiting properties of molybdenum-containing pigments in coatings

Popis výsledku v původním jazyce

Purpose - This paper aims to synthesise anticorrosion pigments containing molybdenum for paints intended for corrosion protection of metals. Design/methodology/approach - The anticorrosion pigments were prepared by high-temperature solid-state synthesis from the appropriate oxides, carbonates and calcium metasilicate. Stoichiometric molybdates and core-shell molybdates with a non-isometric particle shape containing Ca, Sr, Zn, Mg and Fe were synthesised. The pigments were examined by X-ray diffraction analysis and scanning electron microscopy. Paints based on an epoxy resin and containing the substances at a pigment volume concentration of 10 volume per cent were prepared. The paints were subjected to physico-mechanical tests and to tests in corrosion atmospheres. The corrosion test results were compared to those of the paint with a commercial pigment, which is used in many industrial applications. Findings - The molybdate structure of each pigment prepared was elucidated. The core-shell molybdates exhibit a non-isometric particle shape. The pigments prepared were found to impart a very good anticorrosion efficiency to the paints. A high anticorrosion efficiency was found with the pigments Fe-2(MoO4)(3) and Fe-2(MoO4)(3)/CaSiO3 and with Mg and Zn molybdates. Practical implications -The pigments can be used for the formulation of paints intended for the corrosion protection of metals. The pigments also improve the paints' physical properties. Originality/value - The use of the pigments in anticorrosion paints for the protection of metals is new. The benefits include the use and the procedure of synthesis of the anticorrosion pigments which are free from heavy metals and are acceptable from the aspect of environmental protection. Moreover, the core-shell molybdates, whose high efficiency is comparable to that of the stoichiometric molybdates, have lower molybdenum contents.

Název v anglickém jazyce

Corrosion - inhibiting properties of molybdenum-containing pigments in coatings

Popis výsledku anglicky

Purpose - This paper aims to synthesise anticorrosion pigments containing molybdenum for paints intended for corrosion protection of metals. Design/methodology/approach - The anticorrosion pigments were prepared by high-temperature solid-state synthesis from the appropriate oxides, carbonates and calcium metasilicate. Stoichiometric molybdates and core-shell molybdates with a non-isometric particle shape containing Ca, Sr, Zn, Mg and Fe were synthesised. The pigments were examined by X-ray diffraction analysis and scanning electron microscopy. Paints based on an epoxy resin and containing the substances at a pigment volume concentration of 10 volume per cent were prepared. The paints were subjected to physico-mechanical tests and to tests in corrosion atmospheres. The corrosion test results were compared to those of the paint with a commercial pigment, which is used in many industrial applications. Findings - The molybdate structure of each pigment prepared was elucidated. The core-shell molybdates exhibit a non-isometric particle shape. The pigments prepared were found to impart a very good anticorrosion efficiency to the paints. A high anticorrosion efficiency was found with the pigments Fe-2(MoO4)(3) and Fe-2(MoO4)(3)/CaSiO3 and with Mg and Zn molybdates. Practical implications -The pigments can be used for the formulation of paints intended for the corrosion protection of metals. The pigments also improve the paints' physical properties. Originality/value - The use of the pigments in anticorrosion paints for the protection of metals is new. The benefits include the use and the procedure of synthesis of the anticorrosion pigments which are free from heavy metals and are acceptable from the aspect of environmental protection. Moreover, the core-shell molybdates, whose high efficiency is comparable to that of the stoichiometric molybdates, have lower molybdenum contents.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JK - Koroze a povrchové úpravy materiálu

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Anti-Corrosion Methods and Materials

ISSN

0003-5599

e-ISSN

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Svazek periodika

63

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

14-28

Kód UT WoS článku

000369187900003

EID výsledku v databázi Scopus

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