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المؤلفNawaz, Muddasir
المؤلفRadwan, A. Bahgat
المؤلفKalambate, Pramod K.
المؤلفLaiwattanapaisal, Wanida
المؤلفUbaid, Fareeha
المؤلفAkbar, Himyan M.
المؤلفShakoor, R. A.
المؤلفKahraman, Ramazan
تاريخ الإتاحة2023-02-15T10:16:35Z
تاريخ النشر2022
اسم المنشورACS Omega
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1021/acsomega.2c01508
معرّف المصادر الموحدhttp://hdl.handle.net/10576/40099
الملخصCorrosion is a significant problem and is, to a large extent, responsible for the degradation of metallic parts. In this direction, mesoporous silica particles (MSPs) were synthesized by a sol–gel technique and had an average pore diameter of ∼6.82 nm. The MSPs were loaded with polyethyleneimine (PEI) and epoxy monomers and, after that, carefully mixed into the epoxy matrix to formulate new modified polymeric coatings. The microstructural, compositional, structural, and thermal properties were investigated using various characterizing tools [Transmission electron microscopy, Fourier transform infrared spectroscopy, hermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy]. TGA confirms the loading of mesoporous silica with a corrosion inhibitor, and its estimated loading amount is ∼8%. The electrochemical impedance spectroscopy properties of the reference and modified coated samples confirm the promising anti-corrosive performance of the synthesized polymeric smart coatings. Localized electrochemical tests (scanning vibrating electrode technique and scanning ion-selective electrode technique) evidence the corrosion inhibition ability of the coating, and its self-healing was also observed during 24 h of immersion. The decent anti-corrosion performance of the modified coatings can be credited to the efficient synergistic effect of the PEI and epoxy monomer.
راعي المشروعThis work was performed with NPRP grant 11S-1226-170132 from the Qatar National Research Fund (a member of the Qatar Foundation). R. A. Shakoor would like to acknowledge the Core Laboratories, QEERI, for their TEM and SEM imaging. In addition, the authors acknowledge Prof. M. F. Montemor and Dr. M. G. Taryba (Instituto Superior Técnico) for conducting SVET and SEIT tests. The publication of this article was funded by Qatar National Library. Statements made herein are solely the responsibility of the authors.
اللغةen
الناشرAmerican Chemical Society
الموضوعCorrosion Protection
Salt Spray Tests
Layered Double Hydroxides
العنوانSynergistic Behavior of Polyethyleneimine and Epoxy Monomers Loaded in Mesoporous Silica as a Corrosion-Resistant Self-Healing Epoxy Coating
النوعArticle
الصفحات31700-31712
رقم العدد36
رقم المجلد7
dc.accessType Open Access


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