Abstract
A new eco-friendly, pH-responsive capsule is presented. Core-shell silica/chitosan nanocapsules, of around 200 nm, were prepared by the Layer-by-Layer method for the incorporation and further release of the green corrosion inhibitor tannic acid (TA). The release was monitored at different pH. The highest amount of released TA (~90%) occurred at pH 3.0 following a diffusional process. Electrochemical Impedance Spectroscopy (EIS) experiments demonstrated that the capsules improved up to three times the corrosion protection of carbon steel compared to the bare substrate, on aggressive medium for 48 h, possibly due to the formation of a layer of ferric tannate complex on the metal surface.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
