Anticorrosive and physicochemical properties of modified phosphate pigments

• Autorzy: Przywecka Katarzyna , Grzmil Barbara , Kowalczyk Krzysztof

Identyfikatory

DOI

10.2478/pjct-2019-0004

• Języki publikacji: EN

Abstrakty

EN

Many studies have been carried out in the direction of improvement of the effectiveness of commonly utilized phosphate corrosion inhibitors. For this purpose various types of modifications are realized, e.g. introduction of different cations to the pigment composition or replacement of phosphate anions with others. In the presented work, anticorrosive pigments containing calcium hydrogen phosphate, and/or calcium hydroxyphosphate, and calcium molybdate were obtained. The phase and chemical composition and the oil absorption number of those materials were determined. The anticorrosive properties were investigated by an electrochemical noise method. The obtained results were compared with previously published studies concerning pigments containing (NH₄)₃Al₂(PO₄)₃ and/or AlPO₄, and CaMoO₄. It was found that the pigment containing only calcium molybdate(VI) is not an effective corrosion inhibitor. However, the pigments comprising a mixture of CaHPO₄ and CaMoO₄ exhibited good anticorrosive properties and they were characterized by higher effectiveness in the corrosion protection than compared materials.

Słowa kluczowe

EN

anticorrosive pigments; modified phosphates; calcium molybdate; electrochemical noise test

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2019
• Tom: Vol. 21, nr 1
• Strony: 20--23
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Przywecka Katarzyna

• West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Institute of Inorganic Chemical Technology and Environment Engineering, Piastów Ave. 42, 71-065 Szczecin, Poland

autor

Grzmil Barbara

• West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Institute of Inorganic Chemical Technology and Environment Engineering, Piastów Ave. 42, 71-065 Szczecin, Poland

autor

Kowalczyk Krzysztof

• West Pomeranian University of Technology, Szczecin, Faculty of Chemical Technology and Engineering, Polymer Institute, Piastów Ave. 42, 71-065 Szczecin, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).