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Issue 74, 2016, Issue in Progress
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Lightweight, flexible and ultra-thin sandwich architectures for screening electromagnetic radiation

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Abstract

A lightweight and flexible multilayer structure consisting of poly(vinylidene fluoride) and iron particles deposited (electroless) on to a carbon nanofiber (CF) mat was successfully fabricated for electromagnetic interference shielding (EMI) application. The CF was pre-activated before depositing the iron particles by an electroless deposition technique. To enhance the shielding, a poly(vinylidene fluoride) PVDF composite containing multiwalled carbon nanotubes (MWNT) was sandwiched as an inner layer between two outer layers of iron particles deposited onto the CF mat (Fe@CF). The electroless deposition of iron particles onto the CF mat is reflected in a dramatically enhanced SE of ca. −54 dB (at 18 GHz) for an ultra-thin sheet of 0.6 mm as compared to the controlled sandwich structure (consisting of PVDF/CF) due to the presence of a conducting MWNT/PVDF film and magnetically active Fe@CF layer. This particular structure exhibits >95% absorption of the incoming EM radiation. Such a lightweight and flexible sandwich structure promises protection against EM microwave radiation.

Graphical abstract: Lightweight, flexible and ultra-thin sandwich architectures for screening electromagnetic radiation

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Article information


Submitted
31 May 2016
Accepted
18 Jul 2016
First published
18 Jul 2016

RSC Adv., 2016,6, 70018-70024
Article type
Communication

Lightweight, flexible and ultra-thin sandwich architectures for screening electromagnetic radiation

V. Bhingardive, G. P. Kar and S. Bose, RSC Adv., 2016, 6, 70018
DOI: 10.1039/C6RA14154D

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