Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas
In this work, nanocomposites consisting of TiO2-nanorods (TiO2-NRs) with less than 100 nm in size and poly(vinylidene fluoride) (PVDF) were prepared using a liquid-phase assisted dispersion and hot-pressing methods. At 1 kHz and 25 °C, the high dielectric permittivity of ∼66 and loss tangent of ∼0.0...
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2021
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oai:doaj.org-article:9733a387ab1d43c7b84e1f62c1e7bcde2021-12-02T17:55:39ZLargely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas2055-033210.1080/20550324.2021.1952371https://doaj.org/article/9733a387ab1d43c7b84e1f62c1e7bcde2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2021.1952371https://doaj.org/toc/2055-0332In this work, nanocomposites consisting of TiO2-nanorods (TiO2-NRs) with less than 100 nm in size and poly(vinylidene fluoride) (PVDF) were prepared using a liquid-phase assisted dispersion and hot-pressing methods. At 1 kHz and 25 °C, the high dielectric permittivity of ∼66 and loss tangent of ∼0.03 can be obtained in the nanocomposite with a filler volume fraction of 0.5, which was higher than that of a neat PVDF matrix by a factor of 6. Dielectric permittivity of TiO2-NRs/PVDF nanocomposites not only highly increased with TiO2-NRs, but also almost independent of the frequency range of 102–106 Hz. The significant enhancement in dielectric permittivity is mainly attributed to the interfacial polarization at the interfaces of TiO2-NRs and PVDF, and semiconducting properties of TiO2-NRs. Among the various models used for rationalizing the dielectric behavior, the experimental dielectric data is in close agreement with EMT (n = 0.11) and Yamada models (n = 8).Pornsawan Kum-OnsaNarong ChanlekPrasit ThongbaiTaylor & Francis Grouparticletio2-nanorodspoly(vinylidene fluoride)dielectric permittivityloss tangentinterfacial polarizationMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 7, Iss 1, Pp 123-131 (2021) |
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DOAJ |
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tio2-nanorods poly(vinylidene fluoride) dielectric permittivity loss tangent interfacial polarization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 |
| spellingShingle |
tio2-nanorods poly(vinylidene fluoride) dielectric permittivity loss tangent interfacial polarization Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Pornsawan Kum-Onsa Narong Chanlek Prasit Thongbai Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| description |
In this work, nanocomposites consisting of TiO2-nanorods (TiO2-NRs) with less than 100 nm in size and poly(vinylidene fluoride) (PVDF) were prepared using a liquid-phase assisted dispersion and hot-pressing methods. At 1 kHz and 25 °C, the high dielectric permittivity of ∼66 and loss tangent of ∼0.03 can be obtained in the nanocomposite with a filler volume fraction of 0.5, which was higher than that of a neat PVDF matrix by a factor of 6. Dielectric permittivity of TiO2-NRs/PVDF nanocomposites not only highly increased with TiO2-NRs, but also almost independent of the frequency range of 102–106 Hz. The significant enhancement in dielectric permittivity is mainly attributed to the interfacial polarization at the interfaces of TiO2-NRs and PVDF, and semiconducting properties of TiO2-NRs. Among the various models used for rationalizing the dielectric behavior, the experimental dielectric data is in close agreement with EMT (n = 0.11) and Yamada models (n = 8). |
| format |
article |
| author |
Pornsawan Kum-Onsa Narong Chanlek Prasit Thongbai |
| author_facet |
Pornsawan Kum-Onsa Narong Chanlek Prasit Thongbai |
| author_sort |
Pornsawan Kum-Onsa |
| title |
Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| title_short |
Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| title_full |
Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| title_fullStr |
Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| title_full_unstemmed |
Largely enhanced dielectric properties of TiO2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| title_sort |
largely enhanced dielectric properties of tio2-nanorods/poly(vinylidene fluoride) nanocomposites driven by enhanced interfacial areas |
| publisher |
Taylor & Francis Group |
| publishDate |
2021 |
| url |
https://doaj.org/article/9733a387ab1d43c7b84e1f62c1e7bcde |
| work_keys_str_mv |
AT pornsawankumonsa largelyenhanceddielectricpropertiesoftio2nanorodspolyvinylidenefluoridenanocompositesdrivenbyenhancedinterfacialareas AT narongchanlek largelyenhanceddielectricpropertiesoftio2nanorodspolyvinylidenefluoridenanocompositesdrivenbyenhancedinterfacialareas AT prasitthongbai largelyenhanceddielectricpropertiesoftio2nanorodspolyvinylidenefluoridenanocompositesdrivenbyenhancedinterfacialareas |
| _version_ |
1718379124080246784 |