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IJPAP Vol.46(03) [March 2008] >

Title: Application of polypyrrole as an electromagnetic interference shielder
Authors: Dandekar, S S
Kelkar, D S
Keywords: Polypyrrole
Electromagnetic interference shielding
Shielding efficiency
Issue Date: Mar-2008
Publisher: CSIR
Abstract: Pyrrole has been polymerized chemically using FeCl₃ as an oxidizing agent on the substrate of nylon-6 film. Electromagnetic interference (EMI) studies are conducted on polypyrrole film (10 x 10 cm size; 35-40 μm thick) which was fabricated into the square shape. The EMI test is conducted in the frequency range 100-10000 MHz as per MIL STD-285. Attenuation values(db) obtained at various frequencies are recorded. The results indicate that the attenuation values are reaching a maximum of about 3 db at 200 and 3000 MHz. EMI shielding effectiveness (EMI SE) has also been found to be a function of thickness of polypyrrole film. The values of EMI SE are calculated and found to be 2.1 db for 0.004 cm thick film of polypyrrole.
Page(s): 215-216
ISSN: 0019-5596
Source:IJPAP Vol.46(03) [March 2008]

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