Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent
High permittivity and low loss tangent polymer matrix composites containing a low loading of filler are desirable for practical applications in modern electronic devices. In this work, greatly improved dielectric properties of poly(vinylidene fluoride) (PVDF) were accomplished by incorporating high–...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379720317794 |
| _version_ | 1818655310317879296 |
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| author | Pornsawan Kum-onsa Nutthakritta Phromviyo Prasit Thongbai |
| author_facet | Pornsawan Kum-onsa Nutthakritta Phromviyo Prasit Thongbai |
| author_sort | Pornsawan Kum-onsa |
| collection | DOAJ |
| description | High permittivity and low loss tangent polymer matrix composites containing a low loading of filler are desirable for practical applications in modern electronic devices. In this work, greatly improved dielectric properties of poly(vinylidene fluoride) (PVDF) were accomplished by incorporating high–permittivity Na1/3Ca1/3Bi1/3Cu3Ti4O12 (NCBCTO) ceramic particles with sizes of ~0.5–1.5 μm coupled with ~1.0–2.0 μm diameter core–shell Ni@NiO particles. Phase composition, crystal structures, morphology, microstructure, and dielectric properties of NCBCTO–Ni Ni@NiO/PVDF composites were investigated. A nonpolar α–phase and polar β– and γ–phases were detected in the PVDF matrix and NCBCTO–Ni/PVDF composites. Random dispersions of small clusters of NCBCTO and Ni particles were observed in the PVDF polymer matrix. Significantly enhanced dielectric permittivity, ≈279, which was higher than that of pure PVDF polymer by a factor of ≈27, was achieved. Surprisingly, the dielectric loss tangent was suppressed to a very low value of ≈0.07 at 1 kHz. The dielectric properties of the NCBCTO-Ni@NiO/PVDF composites are discussed based on the interfacial polarization at the internal interfaces. |
| first_indexed | 2024-12-17T03:07:39Z |
| format | Article |
| id | doaj.art-592ea9fa52b843efb4aae404b1f3fcc3 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-17T03:07:39Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-592ea9fa52b843efb4aae404b1f3fcc32022-12-21T22:05:55ZengElsevierResults in Physics2211-37972020-09-0118103312Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangentPornsawan Kum-onsa0Nutthakritta Phromviyo1Prasit Thongbai2Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandSustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, ThailandKKU-Research Program, Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; Institute of Nanomaterials Research and Innovation for Energy, (IN–RIE), NANOTEC–KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen 40002, Thailand; Corresponding author at: KKU-Research Program, Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.High permittivity and low loss tangent polymer matrix composites containing a low loading of filler are desirable for practical applications in modern electronic devices. In this work, greatly improved dielectric properties of poly(vinylidene fluoride) (PVDF) were accomplished by incorporating high–permittivity Na1/3Ca1/3Bi1/3Cu3Ti4O12 (NCBCTO) ceramic particles with sizes of ~0.5–1.5 μm coupled with ~1.0–2.0 μm diameter core–shell Ni@NiO particles. Phase composition, crystal structures, morphology, microstructure, and dielectric properties of NCBCTO–Ni Ni@NiO/PVDF composites were investigated. A nonpolar α–phase and polar β– and γ–phases were detected in the PVDF matrix and NCBCTO–Ni/PVDF composites. Random dispersions of small clusters of NCBCTO and Ni particles were observed in the PVDF polymer matrix. Significantly enhanced dielectric permittivity, ≈279, which was higher than that of pure PVDF polymer by a factor of ≈27, was achieved. Surprisingly, the dielectric loss tangent was suppressed to a very low value of ≈0.07 at 1 kHz. The dielectric properties of the NCBCTO-Ni@NiO/PVDF composites are discussed based on the interfacial polarization at the internal interfaces.http://www.sciencedirect.com/science/article/pii/S2211379720317794Three–phase polymer compositesPVDFDielectric permittivityDielectric loss tangentInterfacial polarization |
| spellingShingle | Pornsawan Kum-onsa Nutthakritta Phromviyo Prasit Thongbai Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent Results in Physics Three–phase polymer composites PVDF Dielectric permittivity Dielectric loss tangent Interfacial polarization |
| title | Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent |
| title_full | Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent |
| title_fullStr | Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent |
| title_full_unstemmed | Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent |
| title_short | Na1/3Ca1/3Bi1/3Cu3Ti4O12–Ni@NiO/poly(vinylidene fluoride): Three–phase polymer composites with high dielectric permittivity and low loss tangent |
| title_sort | na1 3ca1 3bi1 3cu3ti4o12 ni nio poly vinylidene fluoride three phase polymer composites with high dielectric permittivity and low loss tangent |
| topic | Three–phase polymer composites PVDF Dielectric permittivity Dielectric loss tangent Interfacial polarization |
| url | http://www.sciencedirect.com/science/article/pii/S2211379720317794 |
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