NDLI: Dielectric behavior and shielding properties of polyaniline composites

Content Provider	IEEE Xplore Digital Library
Author	Wojkiewicz, J. Fauveaux, S. Miane, J.L.
Copyright Year	2001
Description	Author affiliation: Lab. de Polymeres Conduct., Ecole des Mines, Douai, France (Wojkiewicz, J.)
Abstract	Intrinsically conducting polymers (ICP's) and their blends with thermoplastics are very promising for applications in electromagnetic interference shielding (EMI). They can have relatively high conductivities and permittivities and these properties can be tuned easily from insulating to conducting states through chemical processes. Compared to metals, ICP's are light, flexible and they can not only reflect but also absorb electromagnetic radiations. We report results obtained from polyaniline blends with thermoplastics in terms of variation of conductivity, permittivity and shielding effectiveness in function of the process of transformation of polymers, the mass fraction of polyaniline in the blends and the frequency in microwave and millimeter bands. The possibility to have low percolation threshold is very attractive to make materials with mechanical properties of the thermoplastics with the electronic properties of the ICP's. The high value of shielding coefficient shows that ICP's are efficient materials for such applications.
Sponsorship	IEEE Dielectr. & Electr. Insulation Soc
Starting Page	46
Ending Page	49
File Size	408297
Page Count	4
File Format	PDF
ISBN	0780363523
DOI	10.1109/ICSD.2001.955508
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-25
Publisher Place	Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polymers Electromagnetic interference Conductivity Permittivity Mechanical factors Dielectrics and electrical insulation Chemical processes Electromagnetic radiation Frequency Conducting materials
Content Type	Text
Resource Type	Article

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