Protective properties of epoxy coating with zeolite-phosphate anti-corrosion pigment on aluminum alloy

Keywords

aluminium alloy, epoxy coating, anti-corrosion complex zeolite-phosphate pigment, two-stage modification, electrochemical impedance spectroscopy, 3D profilometry.

Cite as

Datsko B. М., Khlopyk О. P., Zin І. М., Sobodosh N. Yo., Holovchuk M. Ya., and Korniy S. А. Protective properties of epoxy coating with zeolite-phosphate anti-corrosion pigment on aluminum alloy. Physico­chemical Mechanics of Materials. 2024. 60(1), 105-111.

https://doi.org/10.15407/pcmm2024.01.105

Abstract

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.

References

1. E. A. Starke, “Aluminum alloys,” in: Encyclopedia of Materials: Sci. and Technol., Elsevier (2001), pp. 114-116. https://doi.org/10.1016/B0-08-043152-6/00024-3
2. J. Rams, “Wrought aluminum alloys” in: Encyclopedia of Materials: Metals and Alloys, Elsevier (2022), pp.132-140. https://doi.org/10.1016/B978-0-12-819726-4.00083-1
3. D. Fuente, “Corrosion of aluminum, aluminum alloys, and composites” in: Encyclopedia of Materials: Metals and Alloys, Elsevier (2022), pp. 160-169. https://doi.org/10.1016/B978-0-12-819726-4.00047-8
4. K. A. Yasakau, M. L. Zheludkevich, and M. G. S. Ferreira, “Corrosion and corrosion protection of aluminum alloys” in: Encyclopedia of Interfacial Chemistry, Elsevier (2018), pp. 115-127. https://doi.org/10.1016/B978-0-12-409547-2.13870-3
5. P. M. Natishan, and W. E. O’grady, “Chloride ion interactions with oxide-covered aluminum leading to pitting corrosion: a review,” J. of The Electrochem. Soc., 161, Is. 9, 421 (2014). DOI 10.1149/2.1011409jes https://doi.org/10.1149/2.1011409jes
6. S. B. Lyon, R. Bingham, and D. J. Mills, “Advances in corrosion protection by organic coatings: what we know and what we would like to know,” Progress in Organic Coat., 102, 2-7 (2017). https://doi.org/10.1016/j.porgcoat.2016.04.030
7. W. Funke, “Problems and progress in organic coatings science and technology,” Progress in Organic Coat., 31, Is. 1-2, 5-9 (1997). https://doi.org/10.1016/S0300-9440(97)00013-1
8. Frank N. Jones, Mark E. Nichols, Socrates Peter Pappas, Organic Coatings: Science and Technology, Wiley (2017).
9. M. Kendig, “Evaluation of corrosion inhibiting pigments,” ECS Transact., 24, Is. 1, 39-49 (2010). https://doi.org/10.1149/1.3453605
10. G. Etzrodt, “Pigments, Inorganic, 5. Anticorrosive Pigments,” in: Ullmann’s Encyclopedia of Industrial Chemistry, Wiley, Weinheim (2012), pp. 343-357.
11. Y. Shao, Jia, G. Meng, T. Zhang, and F. Wang, “The role of a zinc phosphate pigment in the corrosion of scratched epoxy coated steel,” Corr. Sci., 51, Is. 2, 371-379 (2009). https://doi.org/10.1016/j.corsci.2008.11.015
12. E. Alibakhshi, E. Ghasemi, and M. Mahdavian, “Sodium zinc phosphate as a corrosion inhibitive pigment,” Progress in Organic Coatings, 77, Is. 7, 1155-1162 (2014). https://doi.org/10.1016/j.porgcoat.2014.03.027
13. C. M. Griffiths, N. Wint, G. Williams, and H. N. McMurray, “The contribution of Zn(II) and phosphate anions to the inhibition of organic coating cathodic disbondment on galvanised steel by zinc phosphate pigment,” Corr. Sci., 198 (2022). Article number: 110111. https://doi.org/10.1016/j.corsci.2022.110111
14. S. E. Karekar, A. J. Jadhav, C. R. Holkar, N. L. Jadhav, D. V. Pinjari, A. B. Pandit, B. A. Bhanvase, and S. H. Sonawane, “Ultrasonically created rectangular shaped zinc phosphate nanopigment,” Process Modeling, Simulation, and Environmental Applications in Chemical Eng., 181-197 (2016). https://doi.org/10.1201/9781315366449-12
15. V. I. Pokhmurskii, I. M. Zin, L. M. Bily, V. A. Vynar, and Y. I. Zin, “Aluminium alloy corrosion inhibition by chromate-free composition of zinc phosphate and ion-exchanged zeolite,” Surf. and Interface Analysis, 45, Is. 10, 1474-1478 (2013). https://doi.org/10.1002/sia.5275
16. V. I. Pokhmurs’kyi, I. M. Zin’, S. B. Layon, and L. M. Bilyi, “Synergistic effect of phosphate and calcium-containing pigments on the corrosion resistance of galvanized steel,” Mater. Sci., 39, No. 2, 153-160 (2003). https://doi.org/10.1023/B:MASC.0000010264.27310.9e
17. S. A. Korniy, I. M. Zin, M.-O. M. Danyliak, O. P. Khlopyk, V. S. Protsenko, L. M. Bilyi, M. Ya. Holovchuk, and Ya. I. Zin, “Protective properties of mechanochemically fabricated zeolite/phosphate anticorrosion pigments for paint coatings,” Voprosy Khimii i Khimicheskoi Tekhnologii [in Ukrainian], Is. 3, 107-112 (2021). https://doi.org/10.32434/0321-4095-2021-136-3-107-112
18. S. A. Korniy, I. M. Zin, M.-O. M. Danyliak, O. P. Khlopyk, and B. M. Datsko, “Corrosion inhibition of low-alloy steel by a composite pigment based on zeolite and monocalcium phosphate,” Mater. Sci., 58, No. 2, 261-267 (2022). https://doi.org/10.1007/s11003-022-00658-y
19. S. A. Korniy, I. M. Zin, O. P. Khlopyk, M. Ya. Holovchuk, M. -O. M. Danyliak, B. M. Datsko, and P. Ya. Lyutyy, “Aluminium alloy corrosion inhibition by a two-stage modified nanoporous zeolite,” Corr. Eng., Sci. and Techn., 57, Is. 8,740-748 (2022). https://doi.org/10.1080/1478422X.2022.2125647
20. V. I. Zakiev, “Non-contact method of surface 3D profiling,” Visnyk Natsionalnogo Aviatsiinogo Universytetu, Is. 4, 109-111 (2005). https://doi.org/10.18372/2306-1472.26.1245
21. D. Xia, S. Song, J. Wang, H. Bi, and Z. Han, “Fast evaluation of degradation degree of organic coatings by analyzing electrochemical impedance spectroscopy data,” Transactions of Tianjin University, 18, 15-20 (2012). https://doi.org/10.1007/s12209-012-1752-3
22. R. M. Bandeira, J. Drunen, A. C. Garcia, and G. Tremiliosi-Filho, “Influence of the thickness and roughness of polyaniline coatings on corrosion protection of AA7075 aluminum alloy,” Electrochimica Acta, 240, 215-224 (2007). https://doi.org/10.1016/j.electacta.2017.04.083
23. K. Kowalczyk, K. Łuczka, B. Grzmil, and T. Spychaj, “Anticorrosive 2K polyurethane paints based on nano- and microphosphates with high dispersing additive content,” Progress in Organic Coat., 76, Is. 7-8, 1088-1094 (2013). https://doi.org/10.1016/j.porgcoat.2013.03.003
24. Y. Hao, F. Liu, E.-H. Han, S. Anjum, and G. Xu, “The mechanism of inhibition by zinc phosphate in an epoxy coating,” Corr. Sci., 69, 77-86 (2013). https://doi.org/10.1016/j.corsci.2012.11.025