Investigation of Superhydrophobic and Anticorrosive Epoxy Films with Al 2 O 3 Nanoparticles on Different Surfaces.

Autor: Dandan Doganci M; Polymer Science and Technology Graduate Program, Kocaeli University, Kocaeli 41380, Turkey.; Department of Chemistry and Chemical Processing Tech., Kocaeli University, Kocaeli 41140, Turkey., Sevinç H; Polymer Science and Technology Graduate Program, Kocaeli University, Kocaeli 41380, Turkey.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2023 Jun 06; Vol. 8 (24), pp. 21559-21570. Date of Electronic Publication: 2023 Jun 06 (Print Publication: 2023).
DOI: 10.1021/acsomega.3c00729
Abstrakt: In this study, superhydrophobic epoxy coatings were prepared on different surfaces by utilizing hydrophobized aluminum oxide (Al 2 O 3 ) nanoparticles. The dispersions containing epoxy and inorganic nanoparticles with different contents were coated on glass, galvanized steel, and skin-passed galvanized steel substrates by the dip coating method. The contact angles of the obtained surfaces were measured via a contact angle meter device, and the surface morphologies were analyzed by utilizing scanning electron microscopy (SEM). The corrosion resistance was performed in the corrosion cabinet. The surfaces showed superhydrophobic properties with high contact angles greater than 150° and self-cleaning properties. SEM images indicated that the surface roughness increased as the concentration increased by the incorporation of Al 2 O 3 nanoparticles into epoxy surfaces. The increase in surface roughness was supported by atomic force microscopy analysis on glass surfaces. It was determined that the corrosion resistance of the galvanized and skin-passed galvanized surfaces increased with the increase of Al 2 O 3 nanoparticle concentration. It has been shown that red rust formation on skin-passed galvanized surfaces was reduced, although they have low corrosion resistance due to roughening on their surfaces.
Competing Interests: The authors declare no competing financial interest.
(© 2023 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE