| Autor: |
Korniy, Sergiy, Zin, Ivan, Danyliak, Mariia-Olena, Khlopyk, Olha, Datsko, Bohdan, Holovchuk, Myroslav |
| Předmět: |
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| Zdroj: |
Applied Nanoscience; Nov2023, Vol. 13 Issue 11, p7257-7266, 10p |
| Abstrakt: |
In this work, we performed mechanochemical modification of nanoporous synthetic zeolite with zinc dihydrogen phosphate and investigated its inhibitory effect on aluminium alloy in chloride solution. It was established that the synthesized anti-corrosion pigment significantly reduces the corrosion rate of aluminium alloy in 0.1% NaCl solution, which was further confirmed by the results of electrochemical studies. The mechanism of inhibition consists in the formation of a protective film of insoluble aluminium and zinc phosphates on the alloy surface in inhibited solutions, mainly in the anodic areas, and suppression of the cathodic reaction by the formation of a layer of poorly soluble hydroxide compounds in the places of intermetallic inclusions. The optimal ratio of pigment components to achieve maximum anti-corrosion protection was 0.5/0.5. In summary, the new composite pigment effectively acts on the surface of aluminium alloy in chloride-containing corrosion environments, which makes it a promising substitute of the well-known zinc phosphate anti-corrosion pigment for use in paint coatings. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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