Using Modeling and Simulation to Study the Influence of TiO2 Shape on the Dielectric Properties of TiO2/PVDF Composite
TiO2/PVDF composite materials have excellent high dielectric properties and have wide application prospects in the fields of high voltage and energy storage insulation.In this paper, the finite element method was used to simulate the structure and performance of TiO2/PVDF composite material system....
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2022-02-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2064 |
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| Summary: | TiO2/PVDF composite materials have excellent high dielectric properties and have wide application prospects in the fields of high voltage and energy storage insulation.In this paper, the finite element method was used to simulate the structure and performance of TiO2/PVDF composite material system. By establishing two dimensional and three dimensional models, the breakdown mechanism of composite material was systematically studied from the perspectives of electric field intensity, leakage current density, and system energy density distribution, studying the influence of TiO2 shape on the dielectric performance of composite material.The results of the research show that doping 5 vol% TiO2 components, compared to the spherical TiO2/PVDF composites, the linear TiO2/PVDF composites system of electric field intensity, the leakage current density and energy density distribution is relatively uniform, the distortion of the three physical quantities is small, high electric field intensity, leakage current density and energy density area decreased significantly.On the surface of the composite, the highest electric field strength, leakage current density and energy density are reduced 1.42 times, 1.41 times, 2.01 times. From the inside of the composite, the average electric field strength, leakage current density and energy density are reduced respectively 1.25 times, 1.19 times, and 1.52 times.The simulation results show that linear TiO2/PVDF composite has stronger breakdown resistance. This research can provide a theoretical basis for the preparation of new materials with high dielectric properties. |
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| ISSN: | 1007-2683 |