Structure changes of aligned carbon nanotubes in thermoplastics below percolation revealed by impedance spectroscopy.

Qu, Muchao, Terasa, Maik-Ivo, Adelung, Rainer and Schubert, Dirk W. (2018) Structure changes of aligned carbon nanotubes in thermoplastics below percolation revealed by impedance spectroscopy. Open Access Applied Nanoscience, 8 (8). pp. 2071-2075. DOI 10.1007/s13204-018-0865-y.

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Supplementary data:

Abstract

In this study, poly(methyl methacrylate) (PMMA)/carbon nanotube (CNT) composite has been prepared using a melt-mixing procedure and an anisotropic filament has been extruded using a capillary rheometer. The electrical properties have been investigated using fast-Fourier transform impedance spectroscopy (FFT-IS), which allows to develop an equivalent circuit. The proposed electrical circuit contains two resistors and two capacitors, which mirrors the structure change of the CNTs in the composites. Some results are counter-intuitive but are explained by a novel microscopic model.

Document Type: Article
Keywords: Melt spinning Aligned CNTs Below percolation Impedance spectroscopy
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/s13204-018-0865-y
ISSN: 2190-5509
Projects: Future Ocean
Date Deposited: 16 Jan 2019 09:35
Last Modified: 02 Apr 2019 10:27
URI: http://oceanrep.geomar.de/id/eprint/45366

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