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Article Dans Une Revue Applied Physics Letters Année : 1998

In situ observation of electric field induced agglomeration of carbon black in epoxy resin

Résumé

This letter reports on the influence of a static electric field applied by metal electrodes on the agglomeration process of carbon black CB in epoxy resin. The growth of dendrites from the anode into the material is observed in situ by optical transmission microscopy. A percolating network is seen to form, combined with a drastic reduction in the sample resistivity. This behavior can be explained by taking into account the electrostatic interaction of the charged CB particles. The final resistance for composites with a given CB content can be controlled within a range of several decades by varying the applied voltage and the curing temperature of the mixture.
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hal-01653700 , version 1 (01-12-2017)

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Torsten Prasse, Lionel Flandin, Karl Schulte, Wolfgang Bauhofer. In situ observation of electric field induced agglomeration of carbon black in epoxy resin. Applied Physics Letters, 1998, 72 (22), pp.2903. ⟨10.1063/1.121454⟩. ⟨hal-01653700⟩
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