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Issue 22, 2015
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CNT aggregation mechanisms probed by electrical and dielectric measurements

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Abstract

Aggregation of carbon nanotubes in silicone oil was studied by electrical and dielectric measurements. The use of a liquid medium allowed us to slowly dilute and precisely vary the filler contents. With this method, the percolation thresholds were measured with a great accuracy. The filler aggregation process was also probed as a function of time, showing a decrease in the percolation threshold over time after agitation was stopped. In contrast with previous studies on dynamic percolation, in a liquid medium a progressive separation between fillers and matrices is evidenced at a long time. In addition, no permittivity divergence was measured at the transition, this also results from the liquid nature of the matrix.

Graphical abstract: CNT aggregation mechanisms probed by electrical and dielectric measurements

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Publication details

The article was received on 11 Mar 2015, accepted on 02 May 2015 and first published on 06 May 2015


Article type: Paper
DOI: 10.1039/C5TC00692A
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J. Mater. Chem. C, 2015,3, 5769-5774

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    CNT aggregation mechanisms probed by electrical and dielectric measurements

    B. Mathieu, C. Anthony, A. Arnaud and F. Lionel, J. Mater. Chem. C, 2015, 3, 5769
    DOI: 10.1039/C5TC00692A

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