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Outstanding electromagnetic interference shielding effectiveness of polyvinylbutyral-polyaniline nanocomposite film

Bora, Pritom J and Lakhani, Gaurav and Ramamurthy, Praveen C and Madras, Giridhar (2016) Outstanding electromagnetic interference shielding effectiveness of polyvinylbutyral-polyaniline nanocomposite film. In: RSC ADVANCES, 6 (82). pp. 79058-79065.

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Official URL: http://dx.doi.org/10.1039/c6ra14277j

Abstract

In this study, we studied the electromagnetic interference (EMI) shielding property of a solution processed polyvinylbutyral-polyaniline nanocomposite (PVBPN) film in the X-band (8.2-12.4 GHz) and Ku-band (12.4-18 GHz) frequency. The polyaniline nanofibers were chemically synthesized at -30 +/- 2 degrees C and characterized by various techniques. The optimally prepared, free standing PVBPN film (sandwiched 0.78 +/- 0.02 mm) shows an outstanding EMI shielding effectiveness in the X-band and Ku-band frequency. In the X-band, similar to 26 dB EMI shielding effectiveness (shielding due to absorption SEA similar to 21 dB and shielding due to reflection SER similar to 5 dB) was obtained and was found to increase similar to 30 dB (SEA is similar to 26 dB and SER similar to 4 dB) for the Ku-band. The enhancement of shield conductivity, dielectric loss and EM attenuation constant with frequency results in the excellent EMI shielding property of the PVBPN film.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to the ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
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Date Deposited: 22 Oct 2016 10:27
Last Modified: 22 Oct 2016 10:27
URI: http://eprints.iisc.ernet.in/id/eprint/55124

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