NDLI: Synergistic Behavior of Polyethyleneimine and Epoxy Monomers Loaded in Mesoporous Silica as a Corrosion-Resistant Self-Healing Epoxy Coating.

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Synergistic Behavior of Polyethyleneimine and Epoxy Monomers Loaded in Mesoporous Silica as a Corrosion-Resistant Self-Healing Epoxy Coating.

Content Provider	Europe PMC
Author	Nawaz, Muddasir Radwan, A. Bahgat Kalambate, Pramod K. Laiwattanapaisal, Wanida Ubaid, Fareeha Akbar, Himyan M. Shakoor, R. A. Kahraman, Ramazan
Copyright Year	2022
Abstract	Corrosion is a significantproblem and is, to a large extent, responsiblefor the degradation of metallic parts. In this direction, mesoporoussilica particles (MSPs) were synthesized by a sol–gel techniqueand had an average pore diameter of ∼6.82 nm. The MSPs wereloaded with polyethyleneimine (PEI) and epoxy monomers and, afterthat, carefully mixed into the epoxy matrix to formulate new modifiedpolymeric coatings. The microstructural, compositional, structural,and thermal properties were investigated using various characterizingtools [Transmission electron microscopy, Fourier transform infraredspectroscopy, hermogravimetric analysis (TGA), and X-ray photoelectronspectroscopy]. TGA confirms the loading of mesoporous silica witha corrosion inhibitor, and its estimated loading amount is ∼8%.The electrochemical impedance spectroscopy properties of the referenceand modified coated samples confirm the promising anti-corrosive performanceof the synthesized polymeric smart coatings. Localized electrochemicaltests (scanning vibrating electrode technique and scanning ion-selectiveelectrode technique) evidence the corrosion inhibition ability ofthe coating, and its self-healing was also observed during 24 h ofimmersion. The decent anti-corrosion performance of the modified coatingscan be credited to the efficient synergistic effect of the PEI andepoxy monomer.
Journal	ACS Omega
Volume Number	7
PubMed Central reference number	PMC9476192
Issue Number	36
PubMed reference number	36120048
e-ISSN	24701343
DOI	10.1021/acsomega.2c01508
Language	English
Publisher	American Chemical Society
Publisher Date	2022-08-30
Access Restriction	Open
Rights License	Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). © 2022 The Authors. Published by American Chemical Society
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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