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Effect of BaTiO3 size on dielectric property of BaTiO3/PVDF composites

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Abstract

The BaTiO3/polyvinylidene fluoride (BaTiO3/PVDF) polymer-based composites with different size and concentration of BaTiO3 particles were fabricated via a simple physical mixing and subsequently hot-press processing. Effect of the filler size and frequency on the dielectric properties of the BaTiO3/PVDF binary composites was discussed. The result shows that the BaTiO3 size has an effect on the morphology of the BaTiO3/PVDF composites. The composites with 0.2 and 0.3 μm BaTiO3 exhibit high dielectric permittivity than those with 0.4 and 0.5 μm BaTiO3. The composite with 0.4 μm BaTiO3 has a minimum dielectric permittivity except one with 0.1 μm BaTiO3. Dielectric loss of the BaTiO3/PVDF binary composites changes slightly with the BaTiO3 sizes. The ternary BaTiO3/PVDF composites with 0.1 and 0.7 μm BaTiO3 in coexistence exhibit good dielectric properties. As a result, the BaTiO3/PVDF ternary composites in this study may have a promising application as dielectric material in embedded capacitor.

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Authors and Affiliations

  1. Key Laboratory of the Ministry of Education on Nanomaterials, Beijing University of Chemical Technology, Beijing, 100029, China

    Zhi-Min Dang

  2. Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing, 100029, China

    Zhi-Min Dang, Hai-Yan Wang & Bo Peng

  3. Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China

    Ce-Wen Nan

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  1. Zhi-Min Dang
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  2. Hai-Yan Wang
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  3. Bo Peng
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  4. Ce-Wen Nan
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Correspondence to Zhi-Min Dang.

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Dang, ZM., Wang, HY., Peng, B. et al. Effect of BaTiO3 size on dielectric property of BaTiO3/PVDF composites. J Electroceram 21, 381–384 (2008). https://doi.org/10.1007/s10832-007-9201-8

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  • DOI: https://doi.org/10.1007/s10832-007-9201-8

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