Corrosion-Resistant Epoxy Coatings Filled with Nanoparticles of Vegetable Origin to Protect Water Vehicles
| Authors | O.O. Sapronov1 , K. Dyadyura2 , P.O. Vorobiov1, V.D. Sharanov3, M.O Karpash4, R.T. Bishchak5, L. Hrebenyk6 |
| Affiliations |
1Kherson State Maritime Academy, Kherson, Ukraine 2Odesа Polytechnic National University, 1, Shevchenka Ave, 65044 Odesa, Odessa Oblast, Ukraine 3Danube Institute of the National University "Odesa Maritime Academy", Izmail, Ukraine 4King Danylo University, Ivano-Frankivsk, Ukraine 5Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine 6Sumy State University Medical Institute, 28, Troytska Str., 40022 Sumy, Ukraine |
| Е-mail | |
| Issue | Volume 15, Year 2023, Number 5 |
| Dates | Received 05 August 2023; revised manuscript received 18 October 2023; published online 30 October 2023 |
| Citation | O.O. Sapronov, K. Dyadyura, P.O. Vorobiov, и др., J. Nano- Electron. Phys. 15 No 5, 05025 (2023) |
| DOI | https://doi.org/10.21272/jnep.15(5).05025 |
| PACS Number(s) | 81.05.t, 81.05.Zx |
| Keywords | Epoxy, Filler, Defect analysis, IR Spectral analysis, Permeability index, Corrosion (2) , Nanopowder (4) . |
| Annotation |
The structure of the developed epoxy coatings using IR spectral analysis and corrosion resistance by determining the permeability index in the aggressive environment of river water during t 6552 h at a temperature range T 258...303 2 K was investigated in the article. It was shown that the process of structure formation of epoxy coatings is influenced by the change in the ratio of nano-disperse and fibrous fillers in epoxy ED-20 oligomer. Significant structural changes for epoxy coatings were observed at wave numbers: ν 570 cm – 1, ν 840 cm – 1, ν 1045 cm – 1, ν 2962 cm – 1, which indicates their degree of crosslinking. A study on the change in the permeability index in the environment of river water was carried out with consideration of rational proportion of dispersive fillers in the epoxy binder, which made it possible to create an effective barrier to the penetration of aggressive ions and water molecules to the base. A decrease in the permeability of protective coatings by 1.8 ... 2.0 times relative to the epoxy matrix was achieved. In addition, a visual analysis of the surface coatings operated under the influence of river water at variable temperatures was carried out. For the epoxy matrix and composites containing one filler, defects in the form of cracks and peeling were observed, which are associated with the course of physical and chemical processes of sorption and diffusion of an aggressive environment. In addition, such coatings are characterized by a tendency to overgrowth with green algae of the genus Spirogyra. For the coatings containing a rational combination of two fillers, the absence of defects and biological fouling was observed. |
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