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Polymer/inorganic nanocomposites with tailored hierarchical structure as advanced dielectric materials

Published online by Cambridge University Press:  30 April 2012

Evangelos Manias ,
Clive A. Randall ,
Vivek Tomer  and
Georgios Polizos
Evangelos Manias*
Affiliation:
Polymer Nanostructures Lab – CSPS, Penn State Univ, University Park, PA 16802, USA Materials Science & Engineering Dept, Penn State Univ, University Park, PA 16802, USA
Clive A. Randall
Affiliation:
Center of Dielectric Studies – MRI, Penn State Univ, University Park, PA 16802, USA Materials Science & Engineering Dept, Penn State Univ, University Park, PA 16802, USA
Vivek Tomer
Affiliation:
Materials Science & Engineering Dept, Penn State Univ, University Park, PA 16802, USA
Georgios Polizos
Affiliation:
Polymer Nanostructures Lab – CSPS, Penn State Univ, University Park, PA 16802, USA
*
*Author to whom correspondence should be addressed (manias@psu.edu).
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Abstract

Most advances and commercial successes of polymer/inorganic nanocomposites rely only on the dispersion of nanoparticles in a polymer matrix. Such approaches leave untapped opportunities where performance can be improved by controlling the larger length-scale structures. Here, we review selected examples where the hierarchical structure (from millimeter to nanometer) is tailored to control the transport properties of the materials, giving rise to marked property enhancements, relevant to dielectric materials for power capacitors. These examples address composite structures that are self-assembled, both at the nm and the micron scales, and, thus, can be produced using standard industrial practices. Specifically, polyethylene (PE) blends or poly(vinylidene fluoride) (PVDF) copolymers are reinforced with nanofillers; these composites are designed with high filler orientation, which yielded marked improvements in electric-field breakdown strength and, consequently, large improvements in their recoverable energy densities.

Keywords

compositedielectric propertiespolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1410: Symposium DD – Transport Properties in Polymer Nanocomposites II , 2012 , mrsf11-1410-dd08-01
Copyright
Copyright © Materials Research Society 2012

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Footnotes

4

Current Address: The Dow Chemical Co., Corporate R&D, Midland, MI 48674, USA

5

Current Address: Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

References

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