Enhanced dielectric properties and energy storage of the sandwich-structured poly(vinylidene fluoride-co-hexafluoropropylene) composite films with functional BaTiO(3)@Al(2)O(3) nanofibres
| Autor: | Jun-Wei Zha, Shi-Cong Yao, Yan Qiu, Ming-Sheng Zheng, Zhi-Min Dang |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
permittivity
electric breakdown filled polymers nanofibres barium compounds ceramics polymer fibres electrospinning nanofabrication polymer films sandwich structures dielectric losses nanocomposites core-shell nanostructures high energy storage applications ceramic fillers electrical technology electronic technology ceramic nanofibres energy density three-layer sandwich structure dielectric properties insulation layer electrospinning method core–shell structured nanofibres barium titanate nanofibres sandwich-structured poly(vinylidene fluoride-co-hexafluoropropylene) composite films energy storage breakdown strength BaTiO(3) Al(2)O(3) BaTiO(3)-Al(2)O(3) Materials of engineering and construction. Mechanics of materials TA401-492 |
| Zdroj: | IET Nanodielectrics (2019) |
| Druh dokumentu: | article |
| ISSN: | 2514-3255 |
| DOI: | 10.1049/iet-nde.2019.0010 |
| Popis: | Polymer-based composites with ceramic fillers could combine the advantages of both, which can be potentially used in electrical and electronic technology. In this work, the barium titanate (BaTiO(3)) nanofibres and the core–shell structured BaTiO(3)@Al(2)O(3) nanofibres with Al(2)O(3) insulation layer coated on the BaTiO(3) surface were both prepared via the electrospinning method. The appropriate incorporation of the ceramic nanofibres effectively improves the dielectric properties and energy density of the polymer. Moreover, the poly(vinylidene fluoride-co-hexafluoropropylene)-based composite films with the three-layer sandwich structure were fabricated to further promote the dielectric properties. The results show that the outer two layers with a higher content of BaTiO(3) nanofibres can make more contribution to the improved permittivity of the composites. In addition, the introduction of the interlayer with low loading of BaTiO(3)@Al(2)O(3) nanofibres promotes the breakdown strength. This work gives rise to the potential in high energy storage applications. |
| Databáze: | Directory of Open Access Journals |
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