Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers
Elastomers, as a typical category of soft dielectrics, have shown great potential for developing stretchable electronics and soft transducers. However, the performance of dielectric elastomers (DEs) is susceptible to the dielectric permittivity of the material, whether as insulators or actuators. On...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/16/1/113 |
| _version_ | 1797358282633904128 |
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| author | Xianghe Zheng Jianyou Zhou |
| author_facet | Xianghe Zheng Jianyou Zhou |
| author_sort | Xianghe Zheng |
| collection | DOAJ |
| description | Elastomers, as a typical category of soft dielectrics, have shown great potential for developing stretchable electronics and soft transducers. However, the performance of dielectric elastomers (DEs) is susceptible to the dielectric permittivity of the material, whether as insulators or actuators. On the other hand, experiments suggest that the material viscoelasticity significantly influences the dielectric permittivity of DEs. Based on the theory of finite-deformation viscoelasticity, this work adopts the Brillouin function to develop a modeling framework to examine the effect of material viscoelasticity on the dielectric permittivity for the first time. A comparison of the data fitting results between the models with and without consideration of the material viscoelasticity is presented. Simulation results also reveal that the viscous network of the elastomer exerts a mitigation effect on the decrease in the dielectric permittivity when the material is deformed. Furthermore, it is found that the loading rate is a key parameter that strongly affects the dielectric permittivity, mainly through the inelastic deformation. |
| first_indexed | 2024-03-08T14:59:39Z |
| format | Article |
| id | doaj.art-c0088780d46247998f9c56efb7ea3837 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-08T14:59:39Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c0088780d46247998f9c56efb7ea38372024-01-10T15:06:53ZengMDPI AGPolymers2073-43602023-12-0116111310.3390/polym16010113Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed ElastomersXianghe Zheng0Jianyou Zhou1School of Science, Harbin Institute of Technology, Shenzhen 518055, ChinaSchool of Science, Harbin Institute of Technology, Shenzhen 518055, ChinaElastomers, as a typical category of soft dielectrics, have shown great potential for developing stretchable electronics and soft transducers. However, the performance of dielectric elastomers (DEs) is susceptible to the dielectric permittivity of the material, whether as insulators or actuators. On the other hand, experiments suggest that the material viscoelasticity significantly influences the dielectric permittivity of DEs. Based on the theory of finite-deformation viscoelasticity, this work adopts the Brillouin function to develop a modeling framework to examine the effect of material viscoelasticity on the dielectric permittivity for the first time. A comparison of the data fitting results between the models with and without consideration of the material viscoelasticity is presented. Simulation results also reveal that the viscous network of the elastomer exerts a mitigation effect on the decrease in the dielectric permittivity when the material is deformed. Furthermore, it is found that the loading rate is a key parameter that strongly affects the dielectric permittivity, mainly through the inelastic deformation.https://www.mdpi.com/2073-4360/16/1/113dielectric elastomersdielectric permittivitymaterial viscoelasticitypolarizationrate-dependency |
| spellingShingle | Xianghe Zheng Jianyou Zhou Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers Polymers dielectric elastomers dielectric permittivity material viscoelasticity polarization rate-dependency |
| title | Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers |
| title_full | Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers |
| title_fullStr | Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers |
| title_full_unstemmed | Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers |
| title_short | Modeling the Effect of Material Viscoelasticity on the Dielectric Permittivity of Deformed Elastomers |
| title_sort | modeling the effect of material viscoelasticity on the dielectric permittivity of deformed elastomers |
| topic | dielectric elastomers dielectric permittivity material viscoelasticity polarization rate-dependency |
| url | https://www.mdpi.com/2073-4360/16/1/113 |
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