Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/2101
Title: PTFE-SWNT composite for microwave absorption application
Authors: Chameswary, J
Jithesh, K
George, S
Raman, S
Mohanan, P
Sebastian, M T
Keywords: Single walled carbon nanotube
Microwave absorption
Relative permittivity
Power attenuation coefficient
Issue Date: 2010
Publisher: Elsevier
Citation: Materials Letters 64(6):743-745;31 Mar 2010
Abstract: The Polytetrafluoroethylene-single walled carbon nanotube (PTFE-SWNT) composites are prepared and its dielectric properties are investigated as a function of SWNT loading both at 1 MHz and microwave frequencies. The relative permittivity and the conductivity increases with carbon nanotube loading. The addition of 0.02-volume fraction of SWNT increases the relative permittivity of the polymer from 2.1 to 7.5 x 10(6) and the conductivity from 4.887 x 10(-9) to 8.52 x 10(-3) S/CM at 1 MHz. As the volume fraction of SWNT increases from 0.01 to 0.05 the relative permittivity of the PTFE-SWNT composite increases from 4 to 6.6 at X-band (8-12 GHz) and the power attenuation coefficient varies from 9.5 to 17 dB/mm.
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/2101
ISSN: 0167-577X
Appears in Collections:2010

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