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Polyvinylbutyral-Polyaniline Nanocomposite for High Microwave Absorption Efficiency

Bora, Pritom J and Azeem, Irthasa and Vinoy, KJ and Ramamurthy, Praveen C and Madras, Giridhar (2018) Polyvinylbutyral-Polyaniline Nanocomposite for High Microwave Absorption Efficiency. In: ACS OMEGA, 3 (12). pp. 16542-16548.

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Official URL: https://doi.org/10.1021/acsomega.8b02037

Abstract

A coatable polyvinylbutyral (PVB)-polyaniline (PANI) nanocomposite was designed for high microwave absorption efficiency. The maximum absorption efficiency 88.2 dB GHz/mm was obtained for the PANI nanofiber-loaded PVB (PVBPN) nanocomposite with a large bandwidth, whereas a pristine PANI-containing composite shows 53.5 dB GHz/mm in the frequency range 8.2-18 GHz. The presence of nanoslit pores in PVBPN also helps to achieve a large bandwidth and hence high microwave absorption efficiency. Standard electromagnetic simulation also shows that power absorbed by the PVBPN nanocomposite is high and its ultrathin coating over the dielectric substrate (epoxy) is promising for broadband tuneable reflection loss.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to AMER CHEMICAL SOC
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Division of Interdisciplinary Research > Interdisciplinary Centre for Energy Research
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 28 Jan 2019 09:31
Last Modified: 28 Jan 2019 09:31
URI: http://eprints.iisc.ac.in/id/eprint/61493

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