Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability

Functionalized multi-wall carbon nanotubes (MWCNTs) have been embedded in a rubber-toughened epoxy formulation in order to explore the possibility to impart an auto-repair function to the epoxy matrix. The nanofiller has been covalently functionalized with hydrogen bonding moieties able to act as do...

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Main Authors: Guadagno Liberata, Vertuccio Luigi, Naddeo Carlo, Calabrese Elisa, Barra Giuseppina, Raimondo Marialuigia, Sorrentino Andrea, Binder Wolfgang H., Michael Philipp, Rana Sravendra
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201823300021
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author Guadagno Liberata
Vertuccio Luigi
Naddeo Carlo
Calabrese Elisa
Barra Giuseppina
Raimondo Marialuigia
Sorrentino Andrea
Binder Wolfgang H.
Michael Philipp
Rana Sravendra
author_facet Guadagno Liberata
Vertuccio Luigi
Naddeo Carlo
Calabrese Elisa
Barra Giuseppina
Raimondo Marialuigia
Sorrentino Andrea
Binder Wolfgang H.
Michael Philipp
Rana Sravendra
author_sort Guadagno Liberata
collection DOAJ
description Functionalized multi-wall carbon nanotubes (MWCNTs) have been embedded in a rubber-toughened epoxy formulation in order to explore the possibility to impart an auto-repair function to the epoxy matrix. The nanofiller has been covalently functionalized with hydrogen bonding moieties able to act as donor and acceptor of hydrogen bondings. Healing efficiencies have been evaluated for nano charged epoxy formulations at a loading of 0.5% wt/wt of functionalized MWCNTs bearing barbituric acid and thymine-based ligands. For both the performed functionalizations, a self-healing efficiency higher than 50% has been found. Dynamic Mechanical Analysis (DMA) highlights that the inclusion of nanofiller increases the storage moduli. Furthermore, DMA analysis evidences the presence of a phase characterized by a greater mobility of the epoxy chains, which promotes the activation of self-healing mechanisms.
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spelling doaj.art-09b9b2ecd198472eb0c01a1b0ad6ec612022-12-21T20:02:01ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012330002110.1051/matecconf/201823300021matecconf_easn_ceas2018_00021Development of aeronautical epoxy nanocomposites having an integrated selfhealing abilityGuadagno LiberataVertuccio LuigiNaddeo CarloCalabrese ElisaBarra GiuseppinaRaimondo MarialuigiaSorrentino AndreaBinder Wolfgang H.Michael PhilippRana SravendraFunctionalized multi-wall carbon nanotubes (MWCNTs) have been embedded in a rubber-toughened epoxy formulation in order to explore the possibility to impart an auto-repair function to the epoxy matrix. The nanofiller has been covalently functionalized with hydrogen bonding moieties able to act as donor and acceptor of hydrogen bondings. Healing efficiencies have been evaluated for nano charged epoxy formulations at a loading of 0.5% wt/wt of functionalized MWCNTs bearing barbituric acid and thymine-based ligands. For both the performed functionalizations, a self-healing efficiency higher than 50% has been found. Dynamic Mechanical Analysis (DMA) highlights that the inclusion of nanofiller increases the storage moduli. Furthermore, DMA analysis evidences the presence of a phase characterized by a greater mobility of the epoxy chains, which promotes the activation of self-healing mechanisms.https://doi.org/10.1051/matecconf/201823300021
spellingShingle Guadagno Liberata
Vertuccio Luigi
Naddeo Carlo
Calabrese Elisa
Barra Giuseppina
Raimondo Marialuigia
Sorrentino Andrea
Binder Wolfgang H.
Michael Philipp
Rana Sravendra
Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
MATEC Web of Conferences
title Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
title_full Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
title_fullStr Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
title_full_unstemmed Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
title_short Development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
title_sort development of aeronautical epoxy nanocomposites having an integrated selfhealing ability
url https://doi.org/10.1051/matecconf/201823300021
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