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Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes

This paper investigates the effect of multiwalled carbon nanotubes on the mechanical and electrical properties of epoxy resins and epoxy composites. The research concerns multiwalled carbon nanotubes obtained by catalytic chemical vapor deposition, subjected to purification processes and covalent fu...

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Autores principales: Smoleń, Paweł, Czujko, Tomasz, Komorek, Zenon, Grochala, Dominik, Rutkowska, Anna, Osiewicz-Powęzka, Małgorzata
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8234065/
https://www.ncbi.nlm.nih.gov/pubmed/34208501
http://dx.doi.org/10.3390/ma14123325
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author Smoleń, Paweł
Czujko, Tomasz
Komorek, Zenon
Grochala, Dominik
Rutkowska, Anna
Osiewicz-Powęzka, Małgorzata
author_facet Smoleń, Paweł
Czujko, Tomasz
Komorek, Zenon
Grochala, Dominik
Rutkowska, Anna
Osiewicz-Powęzka, Małgorzata
author_sort Smoleń, Paweł
collection PubMed
description This paper investigates the effect of multiwalled carbon nanotubes on the mechanical and electrical properties of epoxy resins and epoxy composites. The research concerns multiwalled carbon nanotubes obtained by catalytic chemical vapor deposition, subjected to purification processes and covalent functionalization by depositing functional groups on their surfaces. The study included the analysis of the change in DC resistivity, tensile strength, strain, and Young’s modulus with the addition of carbon nanotubes in the range of 0 to 2.5 wt.%. The effect of agents intended to increase the affinity of the nanomaterial to the polymer on the aforementioned properties was also investigated. The addition of functionalized multiwalled carbon nanotubes allowed us to obtain electrically conductive materials. For all materials, the percolation threshold was obtained with 1% addition of multiwalled carbon nanotubes, and filling the polymer with a higher content of carbon nanotubes increased its conductivity. The use of carbon nanotubes as polymer reinforcement allows higher values of tensile strength and a higher strain percentage to be achieved. In contrast, Young’s modulus values did not increase significantly, and higher nanofiller percentages resulted in a drastic decrease in the values of the abovementioned properties.
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spelling pubmed-82340652021-06-27 Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes Smoleń, Paweł Czujko, Tomasz Komorek, Zenon Grochala, Dominik Rutkowska, Anna Osiewicz-Powęzka, Małgorzata Materials (Basel) Article This paper investigates the effect of multiwalled carbon nanotubes on the mechanical and electrical properties of epoxy resins and epoxy composites. The research concerns multiwalled carbon nanotubes obtained by catalytic chemical vapor deposition, subjected to purification processes and covalent functionalization by depositing functional groups on their surfaces. The study included the analysis of the change in DC resistivity, tensile strength, strain, and Young’s modulus with the addition of carbon nanotubes in the range of 0 to 2.5 wt.%. The effect of agents intended to increase the affinity of the nanomaterial to the polymer on the aforementioned properties was also investigated. The addition of functionalized multiwalled carbon nanotubes allowed us to obtain electrically conductive materials. For all materials, the percolation threshold was obtained with 1% addition of multiwalled carbon nanotubes, and filling the polymer with a higher content of carbon nanotubes increased its conductivity. The use of carbon nanotubes as polymer reinforcement allows higher values of tensile strength and a higher strain percentage to be achieved. In contrast, Young’s modulus values did not increase significantly, and higher nanofiller percentages resulted in a drastic decrease in the values of the abovementioned properties. MDPI 2021-06-16 /pmc/articles/PMC8234065/ /pubmed/34208501 http://dx.doi.org/10.3390/ma14123325 Text en © 2021 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
Smoleń, Paweł
Czujko, Tomasz
Komorek, Zenon
Grochala, Dominik
Rutkowska, Anna
Osiewicz-Powęzka, Małgorzata
Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title_full Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title_fullStr Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title_full_unstemmed Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title_short Mechanical and Electrical Properties of Epoxy Composites Modified by Functionalized Multiwalled Carbon Nanotubes
title_sort mechanical and electrical properties of epoxy composites modified by functionalized multiwalled carbon nanotubes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8234065/
https://www.ncbi.nlm.nih.gov/pubmed/34208501
http://dx.doi.org/10.3390/ma14123325
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