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AC Properties of Carbon Black Filled Polymer Blends

Published online by Cambridge University Press:  10 February 2011

F. Brouers ,
I. Royen ,
S. Blacher ,
R. Pirard ,
F. Gubbels ,
R. Jerome  and
A. Sarychev
F. Brouers
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
I. Royen
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
S. Blacher
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
R. Pirard
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
F. Gubbels
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
R. Jerome
Affiliation:
Materials Sciences,B5 and Chemistry, B6 Liege Univertsity, Liège 4000, Belgium.
A. Sarychev
Affiliation:
Center for Applied Problems in Electrodynamics Russian Academy of Sciences, Moscow
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Abstract

The macroscopic electrical properties of carbon black filled polyethylene (PE)/polystyrene (PS) blends depend strongly on the selective localization of carbon black particles in one of the phases of the polyblend. The electrical and dielectric properties of these materials can be understood in the framework of the double percolation theory. It appears that in the vicinity of the carbon black percolation threshold, the electrical conduction is dominated by tunneling. The recent theory of Brouers and Sarychev which includes quantum tunneling in the percolation scaling laws provides the basis for a discussion of the observed frequency dependence of the conductivity and the dielectric constant in the range 10−3 – 106 Hz and its relation to the blend morphology.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 411: Symposium T – Electricaly-Based Microstructural Characterization , 1995 , 339
Copyright
Copyright © Materials Research Society 1996

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References

REFERENCES

1. Gubbels, F., Blacher, S., Vanlathem, E., Jerome, R., Deltour, R., Brouers, F. and Ph.Teyssie, Macromolecules, 28. 1559, 1996 Google Scholar
2. Sarychev, A.K. and Brouers, F., Phys. Rev. Lett., 73, 2895, 1994 Google Scholar
3. Geuskens, G., De Kezel, E., Blacher, S. and Brouers, F., Eur.Polym. 27, 1261, 1991 Google Scholar