NDLI: Water as a Digression Relative to the Dielectric Response in the Frequency Domain for Polymer Composites

Content Provider	IEEE Xplore Digital Library
Author	Sami, A. Frechette, M.F. David, E. Savoie, S.
Copyright Year	2008
Description	Author affiliation: Ecole de Technol. Super., Montreal, QC (Sami, A.; David, E.) \|\| Inst. de Rech., Hydro-Quebec, Montreal, QC (Frechette, M.F.; Savoie, S.)
Abstract	The presence of water in insulating solids is known to affect the dielectric properties. Although relaxation processes evolved with the excitation frequency and temperature, further characteristics unfold when contaminant with a high dielectric constant, such as water is involved. When the material consists of a microcomposite, and especially in the advent of incorporation of nanofillers, it is speculated that water molecules may intervene in several different manners. In order to investigate further the potential digression caused by water, dielectric spectroscopy was used on prepared composite specimen. Different types of epoxy microcomposites exhibiting a high content of quartz, i.e. 60% wt., were prepared. The effects due to the variation of the water content and presence of nanostructures (nanoclay) on the dielectric response will be discussed. With a weight intake of 0.2% of water, the capacity of the epoxy microcomposite exhibits a slight increase (2%) at lower frequencies and losses are found to increase while a shift towards higher frequencies occurs.
Starting Page	501
Ending Page	504
File Size	1417345
Page Count	4
File Format	PDF
ISBN	9781424425488
DOI	10.1109/CEIDP.2008.4772775
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency domain analysis Polymers Water Dielectrics and electrical insulation Solids Temperature High-K gate dielectrics Dielectric materials Electrochemical impedance spectroscopy Nanostructures
Content Type	Text
Resource Type	Article

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