Dielectric characterization of EM composite barrier materials with plasma layers on nonwoven fabrics
Jaroszewski, M (Wrocław Univ. of Technology)
Abstract: Currently, one of the most extensively developing field of applications of composite materials, is engineering of materials used for shielding from electromagnetic fields. Composites of fabric materials with thin plasma layer can be used as shield for protection of people or electronic and electric power devices against of disadvantageous impact of electromagnetic fields. In the case of composite material containing conductive layer, conductive connection of the layer units is not necessary, although such connection reinforces screening properties. The capability of composite materials to shield electromagnetic fields are coherently associated with their dielectric properties - the response of a dielectric to an electric field is represented by its dielectric and electrical properties. The nature of the transient currents and conduction current are generally regarded as manifestation of different dielectric and electrical processes can be explained in terms of Jonscher universal dielectric theory. These phenomena are widely used in research the properties of plasma thin films. In the paper, dielectric properties of plasma layer-nonwoven fabric composite is reported.
Keyword(s): dielectric properties ; composite materials ; nonwoven fabric ; plasma layer ; electromagnetic shielding ; transient currents ; conduction mechanisms ; ionic hopping ; Schotky ; space charge limited current (SCLC) ; Poole-Frenkel
Note: First International Conference on Plasma Processing of Organic Materials and Polymers, PPOMP-2011 [Dokument elektroniczny] : Kottayam, India, 25, 26 and 27 November 2011 / Centre for Nanoscience and Nanotechnology Mahatma Gandhi University, Department of Surface Engineering and Optoelectronics Josef Stefan Institute, Institute of Macromolecular Science and Engineering (IMSE) Chatukulam Buildings. [B.m. : b.w.], 2011. s.4
Fulltext : http://zet10.ipee.pwr.wroc.pl/record/392/files/
Cited by: try citation search for ENY-ARTICLE-2012-306
Record created 2012-03-15, last modified 2012-03-16
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