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AuthorHabib, Sehrish
AuthorHassanein, Amani
AuthorKahraman, Ramazan
AuthorMahdi Ahmed, Elsadig
AuthorShakoor, R.A.
Available date2021-10-24T12:11:16Z
Publication Date2021-09
Publication NameMaterials & Design
Identifierhttp://dx.doi.org/10.1016/j.matdes.2021.109839
CitationHabib, S., Hassanein, A., Kahraman, R., Mahdi Ahmed, E., & Shakoor, R. A. (2021). Self-healing behavior of epoxy-based double-layer nanocomposite coatings modified with Zirconia nanoparticles. Materials & Design, 207, 109839. https://doi.org/10.1016/j.matdes.2021.109839
ISSN0264-1275
URIhttp://hdl.handle.net/10576/24655
AbstractThis work reports the self-healing behavior of epoxy-based double-layer nanocomposite coatings designed to mitigate corrosion in various industrial applications. Zirconia (ZrO2) nanoparticles were used as a carrier to load separately self-healing agent, polyethyleneimine (PEI), and corrosion inhibitor, imidazole (IM). The loaded ZrO2 nanoparticles with IM and PEI were doped into the epoxy matrix and applied on polished steel substrate to form pre and top layers of nanocomposite coatings, respectively. TEM analysis confirms the almost globular morphology of the zirconia nanoparticles with a particle size of 15–25 nm. The chemical bonding interactions among various species were confirmed through FTIR. The synergistic effect of self-healing agent and corrosion inhibitor in epoxy-based double-layer nanocomposite coatings demonstrated the pH and time dependence release of inhibitor and self-healing agent. A comparative EIS analysis conducted in 3.5 wt% NaCl solution reveals that epoxy-based double-layer nanocomposite coatings demonstrate improved corrosion resistance performance as compared to the blank epoxy and single layer epoxy reinforced coatings. This enhanced corrosion resistance of epoxy-based double-layer nanocomposite coatings can be ascribed to the efficient release of loaded IM and PEI in response to the external stimuli and can be potentially considered to circumvent corrosion in oil & gas and marine applications.
Languageen
PublisherElsevier
SubjectZirconia nanoparticles
Epoxy
Double layer
Nanocomposite coatings
Corrosion behavior
TitleSelf-healing behavior of epoxy-based double-layer nanocomposite coatings modified with Zirconia nanoparticles
TypeArticle
Volume Number207
dc.accessType Open Access


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