Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: García-Martínez, Vanessa, Gude, Maria R., Calvo, Silvia, Ureña, Alejandro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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
_version_ 1783734976728006656
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
work_keys_str_mv AT garciamartinezvanessa enhancinganaerospacegradebenzoxazineresinbymeansofgraphenenanoplateletsaddition
AT gudemariar enhancinganaerospacegradebenzoxazineresinbymeansofgraphenenanoplateletsaddition
AT calvosilvia enhancinganaerospacegradebenzoxazineresinbymeansofgraphenenanoplateletsaddition
AT urenaalejandro enhancinganaerospacegradebenzoxazineresinbymeansofgraphenenanoplateletsaddition