NDLI: Silicon/epoxy nanocomposites for capacitors as the energy storage element

Content Provider	IEEE Xplore Digital Library
Author	Weixing Sun Xiaoli Tan Kessler, M.R. Bowler, N.
Copyright Year	2013
Description	Author affiliation: Dept. of Mater. Sci. & Eng., Iowa State Univ., Ames, IA, USA (Weixing Sun; Xiaoli Tan; Kessler, M.R.; Bowler, N.)
Abstract	Silicon/epoxy nanocomposites were synthesized in order to investigate potential improvement of electrical energy storage capability and mechanical properties of epoxy resin on addition of Si nanospheres. Nanospheres with mean diameter 130 nm were homogenized within epoxy monomers at 5 and 10 wt.%. The dielectric behavior of the resulting nanocomposites was investigated using broadband dielectric spectroscopy from $10^{-2}$ to $10^{6}$ Hz at room temperature. The dielectric constant, $ε'_{r},$ of the composite with 10 wt.% Si loading is ~ 5.1 at $10^{-2}$ Hz, a 25% increase compared with the value for neat epoxy, whereas tan ô remains low (<; 0.035). On the other hand, a 17% increase of storage modulus was shown in the composite with 5 wt.% Si loading, compared with that of neat epoxy, and $T_{g}$ of the polymer matrix was slightly elevated with Si incorporation. The increases in both permittivity and storage modulus suggest that Si/epoxy nanocomposites are suitable for multifunctional application; e.g. as structural capacitors.
Sponsorship	IEEE Dielectr. Electr. Insul. Soc.
Starting Page	676
Ending Page	679
File Size	754863
Page Count	4
File Format	PDF
ISBN	9781479925971
DOI	10.1109/CEIDP.2013.6747423
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Nanocomposites Nanoparticles Dielectrics Polymers Epoxy resins Loading mechanical properties Si nanoparticles epoxy-based nanoparticles dielectric properties
Content Type	Text
Resource Type	Article

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