Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection

Abstract Smart coatings that provide corrosion protection on demand have received a lot of recent attention. In the present study, nanofibers containing a corrosion inhibitor were prepared by a coaxial electrospinning technique, which addresses the limitations of inhibitor-loaded microcapsules or na...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Chao Li, Xiaolei Guo, Gerald S. Frankel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/6c599deb80f44239b81f6eb54dcc49f6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6c599deb80f44239b81f6eb54dcc49f6
record_format	dspace
spelling	oai:doaj.org-article:6c599deb80f44239b81f6eb54dcc49f62021-11-07T12:07:08ZSmart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection10.1038/s41529-021-00203-32397-2106https://doaj.org/article/6c599deb80f44239b81f6eb54dcc49f62021-11-01T00:00:00Zhttps://doi.org/10.1038/s41529-021-00203-3https://doaj.org/toc/2397-2106Abstract Smart coatings that provide corrosion protection on demand have received a lot of recent attention. In the present study, nanofibers containing a corrosion inhibitor were prepared by a coaxial electrospinning technique, which addresses the limitations of inhibitor-loaded microcapsules or nanocontainers. The as-prepared nanofibers have a core-shell structure with Ce(NO3)3 and the chitosan/polyacrylic acid polyelectrolyte coacervate as the core and shell materials, respectively. UV-vis spectroscopic analysis confirms that the nanofibers are pH-sensitive and able to release the enclosed Ce(NO3)3 at both low and high pH conditions, which are spontaneously generated during corrosion at local anodes and cathodes, respectively. A coating system consisting of such nanofibers within a polyvinyl butyral coating matrix exhibits improved corrosion protection of an AA2024-T3 substrate. Moreover, the embedded Ce(NO3)3-loaded nanofibers can persistently release Ce(NO3)3 to impede corrosion of AA2024-T3 when the artificially damaged coating sample is exposed to NaCl solution.Chao LiXiaolei GuoGerald S. FrankelNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ENnpj Materials Degradation, Vol 5, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chao Li Xiaolei Guo Gerald S. Frankel Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
description	Abstract Smart coatings that provide corrosion protection on demand have received a lot of recent attention. In the present study, nanofibers containing a corrosion inhibitor were prepared by a coaxial electrospinning technique, which addresses the limitations of inhibitor-loaded microcapsules or nanocontainers. The as-prepared nanofibers have a core-shell structure with Ce(NO3)3 and the chitosan/polyacrylic acid polyelectrolyte coacervate as the core and shell materials, respectively. UV-vis spectroscopic analysis confirms that the nanofibers are pH-sensitive and able to release the enclosed Ce(NO3)3 at both low and high pH conditions, which are spontaneously generated during corrosion at local anodes and cathodes, respectively. A coating system consisting of such nanofibers within a polyvinyl butyral coating matrix exhibits improved corrosion protection of an AA2024-T3 substrate. Moreover, the embedded Ce(NO3)3-loaded nanofibers can persistently release Ce(NO3)3 to impede corrosion of AA2024-T3 when the artificially damaged coating sample is exposed to NaCl solution.
format	article
author	Chao Li Xiaolei Guo Gerald S. Frankel
author_facet	Chao Li Xiaolei Guo Gerald S. Frankel
author_sort	Chao Li
title	Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
title_short	Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
title_full	Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
title_fullStr	Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
title_full_unstemmed	Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection
title_sort	smart coating with dual-ph sensitive, inhibitor-loaded nanofibers for corrosion protection
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6c599deb80f44239b81f6eb54dcc49f6
work_keys_str_mv	AT chaoli smartcoatingwithdualphsensitiveinhibitorloadednanofibersforcorrosionprotection AT xiaoleiguo smartcoatingwithdualphsensitiveinhibitorloadednanofibersforcorrosionprotection AT geraldsfrankel smartcoatingwithdualphsensitiveinhibitorloadednanofibersforcorrosionprotection
_version_	1718443551767920640

Smart coating with dual-pH sensitive, inhibitor-loaded nanofibers for corrosion protection

Ejemplares similares