Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites
The influence of carbon multi-walled nanotubes (MWCNTs) and halloysite nanotubes (HNTs) on the physical, thermal, mechanical, and electrical properties of EVA (ethylene vinyl acetate) copolymer was investigated. EVA-based nanocomposites containing MWCNTs or HNTs, as well as hybrid nanocomposites con...
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doaj-99359a581ac74c1c9caac98f880e60262020-11-25T02:58:45ZengMDPI AGMaterials1996-19442020-08-01133809380910.3390/ma13173809Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA NanocompositesAgata Zubkiewicz0Anna Szymczyk1Piotr Franciszczak2Agnieszka Kochmanska3Izabela Janowska4Sandra Paszkiewicz5Department of Technical Physics, West Pomeranian University of Technology, 70311 Szczecin, PolandDepartment of Technical Physics, West Pomeranian University of Technology, 70311 Szczecin, PolandDepartment of Materials Technology, West Pomeranian University of Technology, 70310 Szczecin, PolandDepartment of Materials Technology, West Pomeranian University of Technology, 70310 Szczecin, PolandInstitut de Chimie et Procédés pour l’Energie l’Environnement et la Santé (ICPEES), University of Strasbourg, 67087 Strasbourg, FranceDepartment of Materials Technology, West Pomeranian University of Technology, 70310 Szczecin, PolandThe influence of carbon multi-walled nanotubes (MWCNTs) and halloysite nanotubes (HNTs) on the physical, thermal, mechanical, and electrical properties of EVA (ethylene vinyl acetate) copolymer was investigated. EVA-based nanocomposites containing MWCNTs or HNTs, as well as hybrid nanocomposites containing both nanofillers were prepared by melt blending. Scanning electron microcopy (SEM) images revealed the presence of good dispersion of both kinds of nanotubes throughout the EVA matrix. The incorporation of nanotubes into the EVA copolymer matrix did not significantly affect the crystallization behavior of the polymer. The tensile strength of EVA-based nanocomposites increased along with the increasing CNTs (carbon nanotubes) content (increased up to approximately 40% at the loading of 8 wt.%). In turn, HNTs increased to a great extent the strain at break. Mechanical cyclic tensile tests demonstrated that nanocomposites with hybrid reinforcement exhibit interesting strengthening behavior. The synergistic effect of hybrid nanofillers on the modulus at 100% and 200% elongation was visible. Moreover, along with the increase of MWCNTs content in EVA/CNTs nanocomposites, an enhancement in electrical conductivity was observed.https://www.mdpi.com/1996-1944/13/17/3809EVA elastomershalloysite nanotubes (HNTs)carbon nanotubes (CNTs)nanocompositesthermal propertiesmechanical properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Agata Zubkiewicz Anna Szymczyk Piotr Franciszczak Agnieszka Kochmanska Izabela Janowska Sandra Paszkiewicz |
spellingShingle |
Agata Zubkiewicz Anna Szymczyk Piotr Franciszczak Agnieszka Kochmanska Izabela Janowska Sandra Paszkiewicz Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites Materials EVA elastomers halloysite nanotubes (HNTs) carbon nanotubes (CNTs) nanocomposites thermal properties mechanical properties |
author_facet |
Agata Zubkiewicz Anna Szymczyk Piotr Franciszczak Agnieszka Kochmanska Izabela Janowska Sandra Paszkiewicz |
author_sort |
Agata Zubkiewicz |
title |
Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites |
title_short |
Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites |
title_full |
Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites |
title_fullStr |
Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites |
title_full_unstemmed |
Comparing Multi-Walled Carbon Nanotubes and Halloysite Nanotubes as Reinforcements in EVA Nanocomposites |
title_sort |
comparing multi-walled carbon nanotubes and halloysite nanotubes as reinforcements in eva nanocomposites |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-08-01 |
description |
The influence of carbon multi-walled nanotubes (MWCNTs) and halloysite nanotubes (HNTs) on the physical, thermal, mechanical, and electrical properties of EVA (ethylene vinyl acetate) copolymer was investigated. EVA-based nanocomposites containing MWCNTs or HNTs, as well as hybrid nanocomposites containing both nanofillers were prepared by melt blending. Scanning electron microcopy (SEM) images revealed the presence of good dispersion of both kinds of nanotubes throughout the EVA matrix. The incorporation of nanotubes into the EVA copolymer matrix did not significantly affect the crystallization behavior of the polymer. The tensile strength of EVA-based nanocomposites increased along with the increasing CNTs (carbon nanotubes) content (increased up to approximately 40% at the loading of 8 wt.%). In turn, HNTs increased to a great extent the strain at break. Mechanical cyclic tensile tests demonstrated that nanocomposites with hybrid reinforcement exhibit interesting strengthening behavior. The synergistic effect of hybrid nanofillers on the modulus at 100% and 200% elongation was visible. Moreover, along with the increase of MWCNTs content in EVA/CNTs nanocomposites, an enhancement in electrical conductivity was observed. |
topic |
EVA elastomers halloysite nanotubes (HNTs) carbon nanotubes (CNTs) nanocomposites thermal properties mechanical properties |
url |
https://www.mdpi.com/1996-1944/13/17/3809 |
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