Single-walled carbon nanotubes/polycarbonate composites: basic electrical and 
mechanical properties

Hornbostel, B.; Pötschke, P.; Kotz, J.; Roth, S.

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Single-walled carbon nanotubes/polycarbonate composites: basic electrical and mechanical properties

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Hornbostel, B.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Roth, S.
Abteilung v. Klitzing, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Hornbostel, B., Pötschke, P., Kotz, J., & Roth, S. (2006). Single-walled carbon nanotubes/polycarbonate composites: basic electrical and mechanical properties. physica status solidi (b), 243(13), 3445-3451.

Cite as: https://hdl.handle.net/21.11116/0000-000F-00BB-E

Abstract

The focus of this paper is to investigate the electrical conductivity
and the mechanical properties of single-walled carbon
nanotubes/polycarbonate composites. Two different direct incorporating
methods were applied. In the first method PC and SWCNTs were mixed with
different ratios in a small scale conical twin screw extruder. Here,
additional variations in the feeding of the filler material were tested
in order to improve the state of dispersion of the melt mixing method.
The second one is the coagulation method, here, the filler material was
suspended and the polymer material was dissolved in liquid organic
substances. The mechanical properties were examined by tension tests
and by measuring the Vickers hardness. It should be stressed, that the
nanofiller material was provided in large batches (m > 100 g) and
extensively mechanically homogenized in order to eliminate quality
fluctuations and density differences in the SWCNT occurrences. The
filler material was synthesized in a Kratschmer reactor (carbon arc).
After homogenization, the nanomaterial was characterized. Based on this
the SWCNT content was estimated to be between 30 and 40%, which is
usual for arc discharge material. (c) 2006 WILEY-VCH Verlag GmbH & Co.
KGaA, Weinheim.