Open AccessProtective properties of mechanochemically fabricated zeolite/phosphate anticorrosion pigments for paint coatings
Author(s) -
S. А. Korniy,
І. М. Zin,
Mariia-Olena Danyliak,
О. P. Khlopyk,
V. S. Protsenko,
L. М. Bilyi,
М. Ya. Holovchuk,
Ya. І. Zin
Publication year - 2021
Publication title -
voprosy himii i himičeskoj tehnologii/voprosy himii i himičeskoj tehnologii
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.278
H-Index - 7
eISSN - 2413-7987
pISSN - 0321-4095
DOI - 10.32434/0321-4095-2021-136-3-107-112
Subject(s) - zeolite , corrosion , materials science , zinc phosphate , aqueous solution , chemical engineering , phosphate , metal , environmentally friendly , inorganic chemistry , nuclear chemistry , metallurgy , chemistry , organic chemistry , catalysis , ecology , engineering , biology
The anticorrosion environmentally friendly pigments based on synthetic zeolite and zinc and calcium phosphates were prepared by mechanochemical method. The surface morphology and chemical composition of the obtained pigments were determined by scanning electron microscopy and energy-dispersive X-ray spectroscopy, respectively. It was established that the modification of zeolite by phosphates of divalent metals causes a decrease in the particle size and an increase in the specific surface area of the obtained composite pigments. It was shown that the use of zeolite/phosphate pigments increases the corrosion resistance of the aluminium alloy in 0.1% aqueous NaCl solution. The addition of complex zeolite/phosphate pigments to the sodium chloride solution decelerates the anodic process of electrochemical corrosion, which indicates the formation of a protective film on the metal surface. The composite pigment zeolite/Zn(H2PO4)2 exhibited the highest anticorrosive effect. A gradual release of the inhibitory components from these environmentally friendly pigments provides their long-term action to protect metal products.