Enhanced absorbing properties of three-phase composites based on a thermoplastic-ceramic matrix (BaTiO3 + PVDF) and carbon black nanoparticles

Xiao-Min Meng; Xiao-Juan Zhang; Chang Lu; Ya-Fei Pan; Guang-Sheng Wang

doi:10.1039/C4TA04493B

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Enhanced absorbing properties of three-phase composites based on a thermoplastic-ceramic matrix (BaTiO₃ + PVDF) and carbon black nanoparticles†

Xiao-Min Meng,‡^a Xiao-Juan Zhang,‡^b Chang Lu,^b Ya-Fei Pan^b and Guang-Sheng Wang*^b

Author affiliations

* Corresponding authors

^a School of Chemical Engineering, Northeast Dianli University, Jilin 132000, PR China

^b Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
E-mail: wanggsh@buaa.edu.cn

Abstract

Novel three-phase composites with excellent electromagnetic wave absorption properties based on carbon black (CB) and BaTiO₃ (BT) nanoparticles embedded into polyvinylidene fluoride (PVDF) were prepared using a simple blending and hot-moulding technique. When the composites have filler contents of CB 10 wt% and BT 5 wt%, the reflection loss can reach −38.8 dB at 9.2 GHz, and the reflection loss is less than −10 dB in the frequency range from 3.5 to 18.0 GHz with an absorber thickness of 1.5–5.0 mm. Compared to the two-phase composites of CB/PVDF and BT/PVDF, the three-phase composites showed superior absorption properties. The Debye relaxation theory was used to explain the enhanced absorption properties.

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Article information

DOI: https://doi.org/10.1039/C4TA04493B
Article type: Communication
Submitted: 29 Aug 2014
Accepted: 23 Sep 2014
First published: 23 Sep 2014

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J. Mater. Chem. A, 2014,2, 18725-18730

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Enhanced absorbing properties of three-phase composites based on a thermoplastic-ceramic matrix (BaTiO₃ + PVDF) and carbon black nanoparticles

X. Meng, X. Zhang, C. Lu, Y. Pan and G. Wang, J. Mater. Chem. A, 2014, 2, 18725 DOI: 10.1039/C4TA04493B

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Journal of Materials Chemistry A