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Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites

[Image: see text] Over the past decade, there has been significant interest in polysiloxane-based dielectric elastomers as promising soft electroactive materials. Nevertheless, the natural low permittivity of polydimethylsiloxane has limited its practical applications. In this study, we have develop...

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Autores principales: Huang, Bin, Yu, Yan, Zhao, Yan, Zhao, Yunfeng, Dai, Lina, Zhang, Zhijie, Fei, Hua-Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536023/
https://www.ncbi.nlm.nih.gov/pubmed/37780022
http://dx.doi.org/10.1021/acsomega.3c05066
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author Huang, Bin
Yu, Yan
Zhao, Yan
Zhao, Yunfeng
Dai, Lina
Zhang, Zhijie
Fei, Hua-Feng
author_facet Huang, Bin
Yu, Yan
Zhao, Yan
Zhao, Yunfeng
Dai, Lina
Zhang, Zhijie
Fei, Hua-Feng
author_sort Huang, Bin
collection PubMed
description [Image: see text] Over the past decade, there has been significant interest in polysiloxane-based dielectric elastomers as promising soft electroactive materials. Nevertheless, the natural low permittivity of polydimethylsiloxane has limited its practical applications. In this study, we have developed silicone rubber/Al@SiO(2) composites with a high dielectric constant, low dielectric loss, and high electrical breakdown strength by controlling the shell layer thickness and the content of the core–shell filler. We also investigated the dielectric behavior of the composites. The use of core–shell fillers has increased the Maxwell–Wagner–Sillars (MWS) relaxation process while reducing the dielectric loss of direct current conductance in silicone rubber composites. Moreover, the temperature dependence of the MWS relaxation time in the composites follows the Arrhenius equation. This strategy of increasing the permittivity of silicone composites through core–shell structural fillers can inspire the preparation of other high dielectric constant composites.
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spelling pubmed-105360232023-09-29 Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites Huang, Bin Yu, Yan Zhao, Yan Zhao, Yunfeng Dai, Lina Zhang, Zhijie Fei, Hua-Feng ACS Omega [Image: see text] Over the past decade, there has been significant interest in polysiloxane-based dielectric elastomers as promising soft electroactive materials. Nevertheless, the natural low permittivity of polydimethylsiloxane has limited its practical applications. In this study, we have developed silicone rubber/Al@SiO(2) composites with a high dielectric constant, low dielectric loss, and high electrical breakdown strength by controlling the shell layer thickness and the content of the core–shell filler. We also investigated the dielectric behavior of the composites. The use of core–shell fillers has increased the Maxwell–Wagner–Sillars (MWS) relaxation process while reducing the dielectric loss of direct current conductance in silicone rubber composites. Moreover, the temperature dependence of the MWS relaxation time in the composites follows the Arrhenius equation. This strategy of increasing the permittivity of silicone composites through core–shell structural fillers can inspire the preparation of other high dielectric constant composites. American Chemical Society 2023-09-14 /pmc/articles/PMC10536023/ /pubmed/37780022 http://dx.doi.org/10.1021/acsomega.3c05066 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Huang, Bin
Yu, Yan
Zhao, Yan
Zhao, Yunfeng
Dai, Lina
Zhang, Zhijie
Fei, Hua-Feng
Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title_full Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title_fullStr Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title_full_unstemmed Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title_short Al@SiO(2) Core–Shell Fillers Enhance Dielectric Properties of Silicone Composites
title_sort al@sio(2) core–shell fillers enhance dielectric properties of silicone composites
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536023/
https://www.ncbi.nlm.nih.gov/pubmed/37780022
http://dx.doi.org/10.1021/acsomega.3c05066
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