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AuthorKhan A.
AuthorUbaid F.
AuthorFayyad E.M.
AuthorAhmad Z.
AuthorShakoor R.A.
AuthorMontemor M.F.
AuthorKahraman R.
AuthorMansour S.
AuthorHassan M.K.
AuthorHasan A.
AuthorAbdullah A.M.
Available date2020-04-15T12:01:43Z
Publication Date2019
Publication NameJournal of Materials Science
ResourceScopus
ISSN222461
URIhttp://dx.doi.org/10.1007/s10853-019-03761-9
URIhttp://hdl.handle.net/10576/14185
AbstractThe present research work focuses on the synthesis, characterization and properties of novel polyelectrolyte multilayered microcapsules used as smart additives in organic coatings for corrosion protection of steel parts. Urea formaldehyde microcapsules encapsulated with linalyl acetate (UFMCs), sensitive to mechanical stimulus, were synthesized by in situ emulsion polymerization technique. In the next step, dodecylamine, working as a pH stimulus corrosion inhibitor, was loaded into layers of polyelectrolyte molecules, polyethylenimine (PEI) and sulfonated polyether ether ketone (SPEEK). These were applied layer-by-layer over the microcapsules to form inhibitor containing multilayered urea formaldehyde microcapsules (MLUFMCs). In the next step, MLUFMCs (5.0 wt%) and UFMCs (5.0 wt%) were thoroughly dispersed into the epoxy resin and coated on cleaned steel. A comparison of the structural, thermal and anticorrosive properties indicates that coatings modified with multilayered capsules (PMLSCs) demonstrate good thermal stability, improved self-healing characteristics and higher corrosion resistance compared to the coating modified with urea formaldehyde microcapsules. The improved properties of PMLSCs can be attributed to efficient release of the encapsulated self-healing agent and corrosion inhibitor from the MLUFMCs. Therefore, epoxy coatings modified with the novel multilayered capsules may be attractive for corrosion protection of steel parts used in oil and gas and related industries. - 2019, The Author(s).
SponsorOpen Access funding provided by the Qatar National Library. This publication was made possible by NPRP Grant 9–080-2-039 from Qatar National Research Fund (a member of the Qatar Foundation). Statements made herein are solely the responsibility of the authors. R. A. Shakoor would like to acknowledge the financial support of QU internal grant-QUCG-CAM-2018/2019-3 and the Core Labs, QEERI for their SEM and TEM imaging. M.F. Mon-temor thanks Fundac¸ão para a Ciência e a Tecnologia (FCT, Portugal) for financial support under the projects PEst-OE/QUI/UI0100/2013.
Languageen
PublisherSpringer New York LLC
SubjectAdditives
Corrosion inhibitors
Corrosion resistance
Emulsification
Emulsion polymerization
Epoxy resins
Ethers
Formaldehyde
Ketones
TitleSynthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings
TypeArticle
Pagination12079-12094
Issue Number18
Volume Number54
dc.accessType Open Access


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