Issue 44, 2014

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

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.

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

Supplementary files

Article information

Article type
Communication
Submitted
29 Aug 2014
Accepted
23 Sep 2014
First published
23 Sep 2014

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

Author version available

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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