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Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics

As a new type of dielectric material, the low dielectric constant and corona resistance life of fluorene polyester (FPE) restricts the range of its applications. In order to simultaneously achieve a high dielectric constant and the long corona aging lifetime of FPE, SiO(2) nanoparticles were chosen...

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Autores principales: Zhang, Wenchao, Zhao, Kuo, Guan, Feng, Yin, Jinghua, Feng, Yu, Li, Jialong, Li, Yanpeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471433/
https://www.ncbi.nlm.nih.gov/pubmed/34577954
http://dx.doi.org/10.3390/polym13183053
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author Zhang, Wenchao
Zhao, Kuo
Guan, Feng
Yin, Jinghua
Feng, Yu
Li, Jialong
Li, Yanpeng
author_facet Zhang, Wenchao
Zhao, Kuo
Guan, Feng
Yin, Jinghua
Feng, Yu
Li, Jialong
Li, Yanpeng
author_sort Zhang, Wenchao
collection PubMed
description As a new type of dielectric material, the low dielectric constant and corona resistance life of fluorene polyester (FPE) restricts the range of its applications. In order to simultaneously achieve a high dielectric constant and the long corona aging lifetime of FPE, SiO(2) nanoparticles were chosen as additive to prepare FPE-based composite films. The microstructure of the composite film was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared spectroscopy (IR) and small-angle X-ray scattering (SAXS). The dielectric performances of the composites, including the dielectric constant, breakdown strength and corona resistance lifetime, were investigated. The results show that the introduced SiO(2) does not destroy the structure of the FPE molecular chain and that it increases the thickness of the filler-matrix interface. The dielectric constant of SiO(2)/FPE composites increased from 3.54 to 7.30 at 1 Hz. Importantly, the corona resistance lifetime increased by about 12 times compared with the pure FPE matrix. In brief, this work shows what possibilities there might be when considering the potential applications of high-strength insulating materials.
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spelling pubmed-84714332021-09-28 Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics Zhang, Wenchao Zhao, Kuo Guan, Feng Yin, Jinghua Feng, Yu Li, Jialong Li, Yanpeng Polymers (Basel) Article As a new type of dielectric material, the low dielectric constant and corona resistance life of fluorene polyester (FPE) restricts the range of its applications. In order to simultaneously achieve a high dielectric constant and the long corona aging lifetime of FPE, SiO(2) nanoparticles were chosen as additive to prepare FPE-based composite films. The microstructure of the composite film was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), infrared spectroscopy (IR) and small-angle X-ray scattering (SAXS). The dielectric performances of the composites, including the dielectric constant, breakdown strength and corona resistance lifetime, were investigated. The results show that the introduced SiO(2) does not destroy the structure of the FPE molecular chain and that it increases the thickness of the filler-matrix interface. The dielectric constant of SiO(2)/FPE composites increased from 3.54 to 7.30 at 1 Hz. Importantly, the corona resistance lifetime increased by about 12 times compared with the pure FPE matrix. In brief, this work shows what possibilities there might be when considering the potential applications of high-strength insulating materials. MDPI 2021-09-10 /pmc/articles/PMC8471433/ /pubmed/34577954 http://dx.doi.org/10.3390/polym13183053 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
Zhang, Wenchao
Zhao, Kuo
Guan, Feng
Yin, Jinghua
Feng, Yu
Li, Jialong
Li, Yanpeng
Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title_full Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title_fullStr Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title_full_unstemmed Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title_short Microstructure and Electrical Properties of Fluorene Polyester Based Nanocomposite Dielectrics
title_sort microstructure and electrical properties of fluorene polyester based nanocomposite dielectrics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471433/
https://www.ncbi.nlm.nih.gov/pubmed/34577954
http://dx.doi.org/10.3390/polym13183053
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