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Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet
Dielectric materials with high thermal conductivity and outstanding dielectric properties are highly desirable for advanced electronics. However, simultaneous integration of those superior properties for a material remains a daunting challenge. Here, a multifunctional epoxy composite is fulfilled by...
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/PMC8471898/ https://www.ncbi.nlm.nih.gov/pubmed/34576475 http://dx.doi.org/10.3390/ma14185251 |
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author | Hao, Yutao Li, Qihan Pang, Xianhai Gong, Bohong Wei, Chengmei Ren, Junwen |
author_facet | Hao, Yutao Li, Qihan Pang, Xianhai Gong, Bohong Wei, Chengmei Ren, Junwen |
author_sort | Hao, Yutao |
collection | PubMed |
description | Dielectric materials with high thermal conductivity and outstanding dielectric properties are highly desirable for advanced electronics. However, simultaneous integration of those superior properties for a material remains a daunting challenge. Here, a multifunctional epoxy composite is fulfilled by incorporation of boron nitride nanosheets (BNNSs) and mesoporous silica coated multi-walled carbon nanotubes (MWCNTs@mSiO(2)). Owing to the effective establishment of continuous thermal conductive network, the obtained BNNSs/MWCNTs@mSiO(2)/epoxy composite exhibits a high thermal conductivity of 0.68 W m(−1) K(−1), which is 187% higher than that of epoxy matrix. In addition, the introducing of mesoporous silica dielectric layer can screen charge movement to shut off leakage current between MWCNTs, which imparts BNNSs/MWCNTs@mSiO(2)/epoxy composite with high dielectric constant (8.10) and low dielectric loss (<0.01) simultaneously. It is believed that the BNNSs/MWCNTs@mSiO(2)/epoxy composites with admirable features have potential applications in modern electronics. |
format | Online Article Text |
id | pubmed-8471898 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84718982021-09-28 Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet Hao, Yutao Li, Qihan Pang, Xianhai Gong, Bohong Wei, Chengmei Ren, Junwen Materials (Basel) Article Dielectric materials with high thermal conductivity and outstanding dielectric properties are highly desirable for advanced electronics. However, simultaneous integration of those superior properties for a material remains a daunting challenge. Here, a multifunctional epoxy composite is fulfilled by incorporation of boron nitride nanosheets (BNNSs) and mesoporous silica coated multi-walled carbon nanotubes (MWCNTs@mSiO(2)). Owing to the effective establishment of continuous thermal conductive network, the obtained BNNSs/MWCNTs@mSiO(2)/epoxy composite exhibits a high thermal conductivity of 0.68 W m(−1) K(−1), which is 187% higher than that of epoxy matrix. In addition, the introducing of mesoporous silica dielectric layer can screen charge movement to shut off leakage current between MWCNTs, which imparts BNNSs/MWCNTs@mSiO(2)/epoxy composite with high dielectric constant (8.10) and low dielectric loss (<0.01) simultaneously. It is believed that the BNNSs/MWCNTs@mSiO(2)/epoxy composites with admirable features have potential applications in modern electronics. MDPI 2021-09-13 /pmc/articles/PMC8471898/ /pubmed/34576475 http://dx.doi.org/10.3390/ma14185251 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 Hao, Yutao Li, Qihan Pang, Xianhai Gong, Bohong Wei, Chengmei Ren, Junwen Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title | Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title_full | Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title_fullStr | Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title_full_unstemmed | Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title_short | Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet |
title_sort | synergistic enhanced thermal conductivity and dielectric constant of epoxy composites with mesoporous silica coated carbon nanotube and boron nitride nanosheet |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471898/ https://www.ncbi.nlm.nih.gov/pubmed/34576475 http://dx.doi.org/10.3390/ma14185251 |
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