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Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition
Two different contents of graphene nanoplatelets (GNPs: 0.5 and 2 wt.%) were introduced into benzoxazine resin. The main objective of this work is to obtain a polymeric nanocomposite with multifunctional properties as high electrical and thermal conductivity, maintaining or improving its mechanical...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8346994/ https://www.ncbi.nlm.nih.gov/pubmed/34372147 http://dx.doi.org/10.3390/polym13152544 |
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author | García-Martínez, Vanessa Gude, Maria R. Calvo, Silvia Ureña, Alejandro |
author_facet | García-Martínez, Vanessa Gude, Maria R. Calvo, Silvia Ureña, Alejandro |
author_sort | García-Martínez, Vanessa |
collection | PubMed |
description | Two different contents of graphene nanoplatelets (GNPs: 0.5 and 2 wt.%) were introduced into benzoxazine resin. The main objective of this work is to obtain a polymeric nanocomposite with multifunctional properties as high electrical and thermal conductivity, maintaining or improving its mechanical performance. The quality of the dispersion, performed with a three-roll calender, was studied. Afterward, a complete characterization of the nanocomposites was carried out in order to analyse the benefits of neat resin. The main features of the nanocomposites such as the mechanical and thermo-mechanical properties, their electrical and thermal conductivity and the behaviour under hygrothermal aging, were evaluated. Results allowed us to confirm that benzoxazine/GNPs composites exhibited an increase in the tensile strength of polymeric matrix which was accompanied by a rise in elongation at break. The electrical and thermal conductivities exhibited a remarkable increment with the addition of 2 wt.% of GNPs (six orders of magnitude and 49% respectively). Finally, the barrier properties of benzoxazine resin were also favoured with the presence of GNPs because the maximum water absorbed in a hot-water environment decreased from 2.52% to 2.14% when 0.5 wt.% of graphene nanoplatelets was added. |
format | Online Article Text |
id | pubmed-8346994 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83469942021-08-08 Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition García-Martínez, Vanessa Gude, Maria R. Calvo, Silvia Ureña, Alejandro Polymers (Basel) Article Two different contents of graphene nanoplatelets (GNPs: 0.5 and 2 wt.%) were introduced into benzoxazine resin. The main objective of this work is to obtain a polymeric nanocomposite with multifunctional properties as high electrical and thermal conductivity, maintaining or improving its mechanical performance. The quality of the dispersion, performed with a three-roll calender, was studied. Afterward, a complete characterization of the nanocomposites was carried out in order to analyse the benefits of neat resin. The main features of the nanocomposites such as the mechanical and thermo-mechanical properties, their electrical and thermal conductivity and the behaviour under hygrothermal aging, were evaluated. Results allowed us to confirm that benzoxazine/GNPs composites exhibited an increase in the tensile strength of polymeric matrix which was accompanied by a rise in elongation at break. The electrical and thermal conductivities exhibited a remarkable increment with the addition of 2 wt.% of GNPs (six orders of magnitude and 49% respectively). Finally, the barrier properties of benzoxazine resin were also favoured with the presence of GNPs because the maximum water absorbed in a hot-water environment decreased from 2.52% to 2.14% when 0.5 wt.% of graphene nanoplatelets was added. MDPI 2021-07-31 /pmc/articles/PMC8346994/ /pubmed/34372147 http://dx.doi.org/10.3390/polym13152544 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 García-Martínez, Vanessa Gude, Maria R. Calvo, Silvia Ureña, Alejandro Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title | Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title_full | Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title_fullStr | Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title_full_unstemmed | Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title_short | Enhancing an Aerospace Grade Benzoxazine Resin by Means of Graphene Nanoplatelets Addition |
title_sort | enhancing an aerospace grade benzoxazine resin by means of graphene nanoplatelets addition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8346994/ https://www.ncbi.nlm.nih.gov/pubmed/34372147 http://dx.doi.org/10.3390/polym13152544 |
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