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Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders
In this paper, high thermal conductive polyethylene oxide (PEO)/reduced graphene oxide (rGO) composite is prepared via large-scale green reduction. Flexible layered PEO/GO composites are pre-prepared in aqueous solution. It is demonstrated that PEO chains can form hydrogen bonds with GO. Being drive...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473242/ https://www.ncbi.nlm.nih.gov/pubmed/30960516 http://dx.doi.org/10.3390/polym11030532 |
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author | Luo, Fubin Yan, Pinping Qian, Qingrong Li, Hongzhou Huang, Baoquan Chen, Qinghua |
author_facet | Luo, Fubin Yan, Pinping Qian, Qingrong Li, Hongzhou Huang, Baoquan Chen, Qinghua |
author_sort | Luo, Fubin |
collection | PubMed |
description | In this paper, high thermal conductive polyethylene oxide (PEO)/reduced graphene oxide (rGO) composite is prepared via large-scale green reduction. Flexible layered PEO/GO composites are pre-prepared in aqueous solution. It is demonstrated that PEO chains can form hydrogen bonds with GO. Being driven by hydrogen bonds, GO/PEO composites show homogeneous and lateral highly oriented structures, resulting in excellent mechanical properties. The pre-prepared composite films are large scale soaked into ascorbic acid solution. GO nanosheets in the matrix of the composites can be reduced by ascorbic acid. The results indicate that PEO chains can repair the damage of the films caused by the reduction process. Therefore, the films can maintain their original configuration and still keep excellent flexibility. By comparison, pristine GO films are totally destroyed when the same reduction is experienced. Due to the presence of PEO, the lateral highly oriented structure of the composite will not be damaged. After reduction, the thermal conductivity of the composite reaches to 12.03 W m(−1) K(−1) along the rGO nanosheet oriented direction. |
format | Online Article Text |
id | pubmed-6473242 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64732422019-05-03 Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders Luo, Fubin Yan, Pinping Qian, Qingrong Li, Hongzhou Huang, Baoquan Chen, Qinghua Polymers (Basel) Article In this paper, high thermal conductive polyethylene oxide (PEO)/reduced graphene oxide (rGO) composite is prepared via large-scale green reduction. Flexible layered PEO/GO composites are pre-prepared in aqueous solution. It is demonstrated that PEO chains can form hydrogen bonds with GO. Being driven by hydrogen bonds, GO/PEO composites show homogeneous and lateral highly oriented structures, resulting in excellent mechanical properties. The pre-prepared composite films are large scale soaked into ascorbic acid solution. GO nanosheets in the matrix of the composites can be reduced by ascorbic acid. The results indicate that PEO chains can repair the damage of the films caused by the reduction process. Therefore, the films can maintain their original configuration and still keep excellent flexibility. By comparison, pristine GO films are totally destroyed when the same reduction is experienced. Due to the presence of PEO, the lateral highly oriented structure of the composite will not be damaged. After reduction, the thermal conductivity of the composite reaches to 12.03 W m(−1) K(−1) along the rGO nanosheet oriented direction. MDPI 2019-03-21 /pmc/articles/PMC6473242/ /pubmed/30960516 http://dx.doi.org/10.3390/polym11030532 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Luo, Fubin Yan, Pinping Qian, Qingrong Li, Hongzhou Huang, Baoquan Chen, Qinghua Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title | Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title_full | Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title_fullStr | Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title_full_unstemmed | Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title_short | Preparation of Layered Polyethylene Oxide/rGO Composite: Flexible Lateral Heat Spreaders |
title_sort | preparation of layered polyethylene oxide/rgo composite: flexible lateral heat spreaders |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473242/ https://www.ncbi.nlm.nih.gov/pubmed/30960516 http://dx.doi.org/10.3390/polym11030532 |
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