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PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance

In this work, the properties of the coatings formed on the Mg-Mn-Ce alloy by plasma electrolytic oxidation (PEO) in electrolytes containing halloysite nanotubes (HNTs) were investigated. The incorporation of halloysite nanotubes into the PEO coatings improved their mechanical characteristics, increa...

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Autores principales: Imshinetskiy, Igor, Kashepa, Victoria, Nadaraia, Konstantine, Mashtalyar, Dmitry, Suchkov, Sergey, Zadorozhny, Pavel, Ustinov, Aleksander, Sinebryukhov, Sergey, Gnedenkov, Sergey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820610/
https://www.ncbi.nlm.nih.gov/pubmed/36613748
http://dx.doi.org/10.3390/ijms24010305
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author Imshinetskiy, Igor
Kashepa, Victoria
Nadaraia, Konstantine
Mashtalyar, Dmitry
Suchkov, Sergey
Zadorozhny, Pavel
Ustinov, Aleksander
Sinebryukhov, Sergey
Gnedenkov, Sergey
author_facet Imshinetskiy, Igor
Kashepa, Victoria
Nadaraia, Konstantine
Mashtalyar, Dmitry
Suchkov, Sergey
Zadorozhny, Pavel
Ustinov, Aleksander
Sinebryukhov, Sergey
Gnedenkov, Sergey
author_sort Imshinetskiy, Igor
collection PubMed
description In this work, the properties of the coatings formed on the Mg-Mn-Ce alloy by plasma electrolytic oxidation (PEO) in electrolytes containing halloysite nanotubes (HNTs) were investigated. The incorporation of halloysite nanotubes into the PEO coatings improved their mechanical characteristics, increased thickness, and corrosion resistance. The studied layers reduced corrosion current density by more than two times in comparison with the base PEO layer without HNTs (from 1.1 × 10(−7) A/cm(2) to 4.9 × 10(−8) A/cm(2)). The presence of halloysite nanotubes and products of their dihydroxylation that were formed under the PEO conditions had a positive impact on the microhardness of the obtained layers (this parameter increased from 4.5 ± 0.4 GPa to 7.3 ± 0.5 GPa). In comparison with the base PEO layer, coatings containing halloysite nanotubes exhibited sustained release and higher adsorption capacity regarding caffeine.
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spelling pubmed-98206102023-01-07 PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance Imshinetskiy, Igor Kashepa, Victoria Nadaraia, Konstantine Mashtalyar, Dmitry Suchkov, Sergey Zadorozhny, Pavel Ustinov, Aleksander Sinebryukhov, Sergey Gnedenkov, Sergey Int J Mol Sci Article In this work, the properties of the coatings formed on the Mg-Mn-Ce alloy by plasma electrolytic oxidation (PEO) in electrolytes containing halloysite nanotubes (HNTs) were investigated. The incorporation of halloysite nanotubes into the PEO coatings improved their mechanical characteristics, increased thickness, and corrosion resistance. The studied layers reduced corrosion current density by more than two times in comparison with the base PEO layer without HNTs (from 1.1 × 10(−7) A/cm(2) to 4.9 × 10(−8) A/cm(2)). The presence of halloysite nanotubes and products of their dihydroxylation that were formed under the PEO conditions had a positive impact on the microhardness of the obtained layers (this parameter increased from 4.5 ± 0.4 GPa to 7.3 ± 0.5 GPa). In comparison with the base PEO layer, coatings containing halloysite nanotubes exhibited sustained release and higher adsorption capacity regarding caffeine. MDPI 2022-12-24 /pmc/articles/PMC9820610/ /pubmed/36613748 http://dx.doi.org/10.3390/ijms24010305 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Imshinetskiy, Igor
Kashepa, Victoria
Nadaraia, Konstantine
Mashtalyar, Dmitry
Suchkov, Sergey
Zadorozhny, Pavel
Ustinov, Aleksander
Sinebryukhov, Sergey
Gnedenkov, Sergey
PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title_full PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title_fullStr PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title_full_unstemmed PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title_short PEO Coatings Modified with Halloysite Nanotubes: Composition, Properties, and Release Performance
title_sort peo coatings modified with halloysite nanotubes: composition, properties, and release performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9820610/
https://www.ncbi.nlm.nih.gov/pubmed/36613748
http://dx.doi.org/10.3390/ijms24010305
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