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3D Porous Graphene Based Aerogel for Electromagnetic Applications
Lightweight multifunctional electromagnetic (EM) absorbing materials with outstanding thermal properties, chemical resistance and mechanical stability are crucial for space, aerospace and electronic devices and packaging. Therefore, 3D porous graphene aerogels are attracting ever growing interest. I...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823426/ https://www.ncbi.nlm.nih.gov/pubmed/31673020 http://dx.doi.org/10.1038/s41598-019-52230-5 |
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author | Cheraghi Bidsorkhi, Hossein D’Aloia, Alessandro Giuseppe Tamburrano, Alessio De Bellis, Giovanni Delfini, Andrea Ballirano, Paolo Sarto, Maria Sabrina |
author_facet | Cheraghi Bidsorkhi, Hossein D’Aloia, Alessandro Giuseppe Tamburrano, Alessio De Bellis, Giovanni Delfini, Andrea Ballirano, Paolo Sarto, Maria Sabrina |
author_sort | Cheraghi Bidsorkhi, Hossein |
collection | PubMed |
description | Lightweight multifunctional electromagnetic (EM) absorbing materials with outstanding thermal properties, chemical resistance and mechanical stability are crucial for space, aerospace and electronic devices and packaging. Therefore, 3D porous graphene aerogels are attracting ever growing interest. In this paper we present a cost effective lightweight 3D porous graphene-based aerogel for EM wave absorption, constituted by a poly vinylidene fluoride (PVDF) polymer matrix filled with graphene nanoplatelets (GNPs) and we show that the thermal, electrical, mechanical properties of the aerogel can be tuned through the proper selection of the processing temperature, controlled either at 65 °C or 85 °C. The produced GNP-filled aerogels are characterized by exceptional EM properties, allowing the production of absorbers with 9.2 GHz and 6.4 GHz qualified bandwidths with reflection coefficients below −10 dB and −20 dB, respectively. Moreover, such aerogels show exceptional thermal conductivities without any appreciable volume change after temperature variations. Finally, depending on the process parameters, it is shown the possibility to obtain water repellent aerogel composites, thus preventing their EM and thermal properties from being affected by environmental humidity and allowing the realization of EM absorber with a stable response. |
format | Online Article Text |
id | pubmed-6823426 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68234262019-11-12 3D Porous Graphene Based Aerogel for Electromagnetic Applications Cheraghi Bidsorkhi, Hossein D’Aloia, Alessandro Giuseppe Tamburrano, Alessio De Bellis, Giovanni Delfini, Andrea Ballirano, Paolo Sarto, Maria Sabrina Sci Rep Article Lightweight multifunctional electromagnetic (EM) absorbing materials with outstanding thermal properties, chemical resistance and mechanical stability are crucial for space, aerospace and electronic devices and packaging. Therefore, 3D porous graphene aerogels are attracting ever growing interest. In this paper we present a cost effective lightweight 3D porous graphene-based aerogel for EM wave absorption, constituted by a poly vinylidene fluoride (PVDF) polymer matrix filled with graphene nanoplatelets (GNPs) and we show that the thermal, electrical, mechanical properties of the aerogel can be tuned through the proper selection of the processing temperature, controlled either at 65 °C or 85 °C. The produced GNP-filled aerogels are characterized by exceptional EM properties, allowing the production of absorbers with 9.2 GHz and 6.4 GHz qualified bandwidths with reflection coefficients below −10 dB and −20 dB, respectively. Moreover, such aerogels show exceptional thermal conductivities without any appreciable volume change after temperature variations. Finally, depending on the process parameters, it is shown the possibility to obtain water repellent aerogel composites, thus preventing their EM and thermal properties from being affected by environmental humidity and allowing the realization of EM absorber with a stable response. Nature Publishing Group UK 2019-10-31 /pmc/articles/PMC6823426/ /pubmed/31673020 http://dx.doi.org/10.1038/s41598-019-52230-5 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Cheraghi Bidsorkhi, Hossein D’Aloia, Alessandro Giuseppe Tamburrano, Alessio De Bellis, Giovanni Delfini, Andrea Ballirano, Paolo Sarto, Maria Sabrina 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title | 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title_full | 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title_fullStr | 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title_full_unstemmed | 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title_short | 3D Porous Graphene Based Aerogel for Electromagnetic Applications |
title_sort | 3d porous graphene based aerogel for electromagnetic applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6823426/ https://www.ncbi.nlm.nih.gov/pubmed/31673020 http://dx.doi.org/10.1038/s41598-019-52230-5 |
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