Srivastava, Rajesh Kumar and Xavier, Priti and Gupta, Satyendra Nath and Kar, Goutam Prasanna and Bose, Suryasarathi and Sood, AK (2016) Excellent Electromagnetic Interference Shielding by Graphene- MnFe2O4-Multiwalled Carbon Nanotube Hybrids at Very Low Weight Percentage in Polymer Matrix. In: CHEMISTRYSELECT, 1 (18). pp. 5995-6003.
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We report electromagnetic interference (EMI) shielding effectiveness of reduced graphene oxide-manganese ferrite (RGO-MnFe2O4) hybrids in presence of multiwalled carbon nanotubes (MWCNTs) as conductive filler in polyvinylidene fluoride (PVDF) matrix. MnFe2O4 nanoparticles and RGO-MnFe2O4 hybrids were synthesized by a facile one-step hydrothermal method and different PVDF/RGO-MnFe2O4 composite films containing fixed amount of MWCNTs (3 wt%) were fabricated by solution blending. The samples were characterized by X-ray diffraction, Raman spectroscopy, scanning electron and atomic force microscopies and by thermal gravimetric analysis. Excellent absorption and a total EMI shielding (SET) of ca. -38dB at 18 GHz were noted for 5wt% RGO-MnFe2O4. Interestingly, the storage modulus of this particular composite film showed 3 folds higher modulus as compared to control PVDF film. Our study establishes that simple and economical fabrication method of PVDF/RGO-MnFe2O4/MWCNTs composite film at very low filler content has a great potential as microwave absorbing material.
| Item Type: | Journal Article |
|---|---|
| Publication: | CHEMISTRYSELECT |
| Publisher: | WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY |
| Additional Information: | Copy right for this article belongs to the WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 26 Apr 2017 07:22 |
| Last Modified: | 26 Apr 2017 07:22 |
| URI: | http://eprints.iisc.ac.in/id/eprint/56627 |
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