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Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing

A strategy of doping by multi-walled carbon nanotubes (MWCNT) to enhance mechanical strength and the electrical conductivity of ceramic fibers has nowadays attracted a great deal of attention for a wide variety of industrial applications. This study focuses on the effect of MWCNTs on rheological pro...

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Autores principales: Tätte, Tanel, Hussainov, Medhat, Amiri, Mahsa, Vanetsev, Alexander, Paalo, Madis, Hussainova, Irina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838049/
https://www.ncbi.nlm.nih.gov/pubmed/35161129
http://dx.doi.org/10.3390/ma15031186
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author Tätte, Tanel
Hussainov, Medhat
Amiri, Mahsa
Vanetsev, Alexander
Paalo, Madis
Hussainova, Irina
author_facet Tätte, Tanel
Hussainov, Medhat
Amiri, Mahsa
Vanetsev, Alexander
Paalo, Madis
Hussainova, Irina
author_sort Tätte, Tanel
collection PubMed
description A strategy of doping by multi-walled carbon nanotubes (MWCNT) to enhance mechanical strength and the electrical conductivity of ceramic fibers has nowadays attracted a great deal of attention for a wide variety of industrial applications. This study focuses on the effect of MWCNTs on rheological properties of metal alkoxide precursors used for the preparation of nanoceramic metal oxide fibers. The rheological behavior of MWCNT-loaded titanium alkoxide sol precursors has been evaluated via an extensional rheometry method. A substantial decrease in elongational viscosity and relaxation time has been observed upon an introduction of MWCNTs even of low concentrations (less than 0.1 wt.%). A high quality MWCNT/nanoceramic TiO(2) composite fibers drawn from the specified precursors has been validated. The MWCNT percolation, which is mandatory for electrical conductivity (50 S/m), has been achieved at 1 wt.% MWCNT doping.
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spelling pubmed-88380492022-02-13 Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing Tätte, Tanel Hussainov, Medhat Amiri, Mahsa Vanetsev, Alexander Paalo, Madis Hussainova, Irina Materials (Basel) Article A strategy of doping by multi-walled carbon nanotubes (MWCNT) to enhance mechanical strength and the electrical conductivity of ceramic fibers has nowadays attracted a great deal of attention for a wide variety of industrial applications. This study focuses on the effect of MWCNTs on rheological properties of metal alkoxide precursors used for the preparation of nanoceramic metal oxide fibers. The rheological behavior of MWCNT-loaded titanium alkoxide sol precursors has been evaluated via an extensional rheometry method. A substantial decrease in elongational viscosity and relaxation time has been observed upon an introduction of MWCNTs even of low concentrations (less than 0.1 wt.%). A high quality MWCNT/nanoceramic TiO(2) composite fibers drawn from the specified precursors has been validated. The MWCNT percolation, which is mandatory for electrical conductivity (50 S/m), has been achieved at 1 wt.% MWCNT doping. MDPI 2022-02-04 /pmc/articles/PMC8838049/ /pubmed/35161129 http://dx.doi.org/10.3390/ma15031186 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
Tätte, Tanel
Hussainov, Medhat
Amiri, Mahsa
Vanetsev, Alexander
Paalo, Madis
Hussainova, Irina
Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title_full Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title_fullStr Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title_full_unstemmed Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title_short Rheological Properties of MWCNT-Doped Titanium-Oxo-Alkoxide Gel Materials for Fiber Drawing
title_sort rheological properties of mwcnt-doped titanium-oxo-alkoxide gel materials for fiber drawing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838049/
https://www.ncbi.nlm.nih.gov/pubmed/35161129
http://dx.doi.org/10.3390/ma15031186
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