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AuthorSehrish, Habib
AuthorFayyed, Eman
AuthorShakoor, Rana Abdul
AuthorKahraman, Ramazan
AuthorAbdullah, Aboubakr
Available date2022-09-26T10:25:33Z
Publication Date2021-02-28
Publication NameArabian Journal of Chemistry
Identifierhttp://dx.doi.org/10.1016/j.arabjc.2020.102926
CitationHabib, S., Fayyed, E., Shakoor, R. A., Kahraman, R., & Abdullah, A. (2021). Improved self-healing performance of polymeric nanocomposites reinforced with talc nanoparticles (TNPs) and urea-formaldehyde microcapsules (UFMCs). Arabian Journal of Chemistry, 14(2), 102926.‏
ISSN18785352
URIhttps://www.sciencedirect.com/science/article/pii/S1878535220304871
URIhttp://hdl.handle.net/10576/34500
AbstractThe present work reports the self-healing performance of the epoxy based polymeric nanocomposite coatings containing different concentrations (1 and 3 wt%) of talc nanoparticles (TNPs) modified with sodium nitrate (NaNO3), and a fixed amount (5 wt%) of urea-formaldehyde microcapsules (UFMCs) encapsulated with linseed oil (LO). The polymeric nanocomposites were developed, coated on polished steel substrates, and their structural, thermal, and self-healing characteristics were investigated using various techniques. The successful loading (~wt 10%) of NaNO3 into TNPs, which can be ascribed to the involvement of physio-chemical adsorption mechanism, is validated and proceeds without altering the TNPs parent lamellae structure. The performed tests elucidated that the self-release of the corrosion inhibitor (NaNO3) from TNPs is sensitive to the pH of the solution and immersion time. In addition, the release of the linseed oil (self-healing agent) from UFMCs in response to the external damage was found to be a time-dependent process. The superior self-healing and corrosion inhibition performance of the protective polymeric nanocomposites coatings containing 3 wt% TNPs and UFMCs/LO are proven using the electrochemical impedance spectroscopy (EIS) studies. A careful selection of smart carriers, inhibitor, and self-healing agent compatible with polymeric matrix has enabled to attain decent self-healing and convincing corrosion inhibition efficiency of 99.9% and 99.5%, respectively, for polymeric nanocomposites coatings containing 3 and 1 wt% TNPs, making them attractive for many industrial applications.
Languageen
PublisherElsevier B.V.
SubjectNanoparticles
Nanocomposites
Corrosion inhibitor
Self-healing coatings
Electrochemical Impedance Spectroscopy
TitleImproved self-healing performance of polymeric nanocomposites reinforced with talc nanoparticles (TNPs) and urea-formaldehyde microcapsules (UFMCs)
TypeArticle
Issue Number2
Volume Number14
Open Access user License http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.accessType Open Access


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