Electromagnetic shielding effectiveness of multiwalled carbon nanotube filled silicone rubber

Vas, Joseph Vimal and Thomas, M Joy (2017) Electromagnetic shielding effectiveness of multiwalled carbon nanotube filled silicone rubber. In: 13th International Conference on Electromagnetic Interference and Compatibility, INCEMIC 2015, 22-23 July 2015, Visakhapatnam, India, pp. 55-59.

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Abstract

Due to the extensive use of electromagnetic fields especially for communication, the ambient electromagnetic noise pollution are higher especially in the microwave and radio frequency regions. These intentional as well as unintentional electromagnetic fields cause interference in various electronic circuits loading to temporary upsets or even permanent damage. Various conducting materials have been used to provide good electromagnetic shielding. The use of polymeric composites, such as silicone rubber with conducting fillers, for shielding applications gives many advantages like ease of processing, high strength to weight ratio and minimal metal content. In the present work, the shielding properties of multi-walled carbon nanotube filled silicone rubber are studied. The particle size and the dispersion of fillers in the polymer was studied using a Scanning Electron microscope. The conductivity was measured using 4-probe Van der Pauw method and the shielding measurements are done as per ASTM D 4935. Adding carbon nanotubes into the polymer matrix significantly improved the conductivity and hence the shielding effectiveness.

Item Type:	Conference Paper
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The Copyright of this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Electromagnetic shielding; multiwalled carbon nanotubes; polymer composites; Carbon nanotubes; Elastomers; Electromagnetic fields; Electromagnetic pulse; Electromagnetic wave interference; Filled polymers; Fillers; Magnetic shielding; Multiwalled carbon nanotubes (MWCN); Nanotubes; Noise pollution; Particle size; Rubber; Rubber applications; Scanning electron microscopy; Shielding; Signal interference; Silicones; Yarn; Electromagnetic noise; Electromagnetic shielding effectiveness; Filled silicone rubbers; Polymer composite; Shielding applications; Shielding effectiveness; Shielding measurements; Shielding properties; Electromagnetic shielding
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	10 Jun 2022 05:16
Last Modified:	10 Jun 2022 05:16
URI:	https://eprints.iisc.ac.in/id/eprint/73259

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