Preparation and Properties of Electromagnetic Wave Absorption Materials BaTiO3/MWCNT and Derived PAN Hybrid Fibers

doi:10.3724/SP.J.1077.2010.00829

Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (8): 829-834.DOI: 10.3724/SP.J.1077.2010.00829

• Research Paper • Previous Articles Next Articles

Preparation and Properties of Electromagnetic Wave Absorption Materials BaTiO₃/MWCNT and Derived PAN Hybrid Fibers

BI Cheng, ZHU Mei-Fang, ZHANG Qing-Hong, LI Yao-Gang, WANG Hong-Zhi

(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Engineering Research Center of Advanced Glasses Manufacturing Technology, MOE, Donghua University, Shanghai 201620, China)

Received:2009-12-21 Revised:2010-02-05 Published:2010-08-20 Online:2010-07-19

Abstract

Abstract:

BaTiO₃/multi-walled carbon nanotubes (MWCNTs) composite was synthesized by an efficient solvent-thermal route. Transmission electron microscope images clearly indicate that the surfaces of the MWCNTs are uniformly decorated by well-crystallized BaTiO₃ particles with diameters of 15-30 nm. The result of Electromagnetic (EM) wave absorption properties analysis, determined by the EM parameters, shows that the reflection loss (RL) in the BaTiO₃/MWCNT composite is higher than that occurring in pure MWCNTs or BaTiO₃, which resulted from the better matched characteristic impedance and enhanced complex permeability in the high frequency. The maximum RL of –37.5 dB in the BaTiO₃/MWCNT composite is obtained at a frequency of 10.4 GHz and the absorption range is under –10 dB in the frequency range of 9.6–13.1GHz with the absorber thickness of 2 mm. BaTiO₃/MWCNT/PAN hybrid fibres, derived from a PAN solution containing 10 wt% BaTiO₃/MWCNT composite, were prepared by the electrospinning process. The results of XRD and SEM indicated that both the structure of BaTiO₃/MWCNT composite and the morphology of PAN changed little after the hybrid process. BaTiO₃/MWCNT composite has the well compatibility with PAN matrix.

Key words: multi-walled carbon nanotubes, BaTiO₃ nanoparticle, electromagnetic wave absorbing-ability, PAN hybrid fiber

CLC Number:

O646
TJ04

BI Cheng, ZHU Mei-Fang, ZHANG Qing-Hong, LI Yao-Gang, WANG Hong-Zhi. Preparation and Properties of Electromagnetic Wave Absorption Materials BaTiO₃/MWCNT and Derived PAN Hybrid Fibers[J]. Journal of Inorganic Materials, 2010, 25(8): 829-834.

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Preparation and Properties of Electromagnetic Wave Absorption Materials BaTiO₃/MWCNT and Derived PAN Hybrid Fibers

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