Investigating how zeolite-phosphate pigment improves anti-corrosion in aluminum coatings, indicating enhanced durability.
The effect of complex zeolite-phosphate anti-corrosion pigment obtained by mechanochemical modification of synthetic zeolite with calcium cations followed by liquid-phase deposition of zinc-phosphate phase on the protective properties of epoxy coating on aluminum alloy was investigated. The methods of electrochemical impedance spectroscopy, optical 3D profilometry, and tests in a humidity and heat chamber established that the addition of such pigment to an epoxy coating provides a significant increase in its anti-corrosion properties. As a result, the metal charge transfer resistance increases and the amount of corrosion products in the sites of defects in the paint layer decreases.
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Datsko et al. (2024) studied this question.
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