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Preparation of colloidal carbon nanotube dispersions and their characterisation using a disc centrifuge

Nadler, Michael and Mahrholz, Thorsten and Riedel, Ulrich and Schilde, Carsten and Kwade, Arno (2008) Preparation of colloidal carbon nanotube dispersions and their characterisation using a disc centrifuge. Carbon, 46 (11), pp. 1384-1392. Elsevier. doi: 10.1016/j.carbon.2008.05.024. ISSN 0008-6223.

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After their synthesis, carbon nanotubes are usually obtained as mechanically entangled solid bodies or subsequently associate themselves into aggregates. This leads to the demand of an effective dispersing method for the preparation of CNT-based composites. This paper studies selected dispersing mechanisms such as cavitation and high shear forces for the preparation of colloidal CNT/epoxy dispersions, which were subject to a particle size analysis using a differential sedimentation based disc centrifuge. Due to the remarkable shape of carbon nanotubes the measurement routines had to be adjusted and a validation of measurement results was performed. The fact that the disc centrifuge is suitable for the detection of residual agglomerates in CNT dispersions was shown by monitoring the dispersing methods ultrasonication and calendering.

Item URL in elib:https://elib.dlr.de/59200/
Document Type:Article
Title:Preparation of colloidal carbon nanotube dispersions and their characterisation using a disc centrifuge
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Nadler, MichaelInstitute of Lightweight Engineering and Polymer Technology, TU DresdenUNSPECIFIED
Schilde, CarstenInstitute of Particle Technology, TU BraunschweigUNSPECIFIED
Kwade, ArnoInstitute of Particle Technology, TU BraunschweigUNSPECIFIED
Date:June 2008
Journal or Publication Title:Carbon
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.carbon.2008.05.024
Page Range:pp. 1384-1392
Keywords:CNT, Carbon Nano Tube, Dispersion, Disc centrifuge
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Ries, Doris
Deposited On:30 Jun 2009 10:02
Last Modified:22 Jul 2009 11:21

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