The effect of twin screw extrusion on structural, electrical, and rheological properties in carbon nanotube poly-ether-ether-ketone nanocomposites

The influence of twin screw extruder dispersion of multiwalled carbon nanotubes (CNTs) on the structural, electrical, and rheological properties in poly(ether ether ketone) is studied. Intermediate rotational speeds (200 rpm) of co‐rotating twin screws yield higher electrical conductivity and dynami...

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Bibliographic Details
Published in:Journal of applied polymer science 2013-09, Vol.129 (5), p.2527-2535
Main Authors: Guehenec, Matthieu, Tishkova, Victoria, Dagreou, Sylvie, Leonardi, Frederic, Derail, Christophe, Puech, Pascal, Pons, François, Gauthier, Benedicte, Cadaux, Pierre-Henri, Bacsa, Wolfgang
Format: Article
Language:English
Subjects:
Applied sciences
Chemical Sciences
Composites
Dispersions
Ethers
Exact sciences and technology
Forms of application and semi-finished materials
Materials science
Nanocomposites
nanotubes
Polymer industry, paints, wood
Polymers
Reproduction
Resistivity
Rheological properties
rheology
Screws
Shear modulus
spectroscopy
Technology of polymers
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Summary:The influence of twin screw extruder dispersion of multiwalled carbon nanotubes (CNTs) on the structural, electrical, and rheological properties in poly(ether ether ketone) is studied. Intermediate rotational speeds (200 rpm) of co‐rotating twin screws yield higher electrical conductivity and dynamic shear modulus than for lower or higher speeds when using 3 wt % multiwall CNTs. These improved properties at intermediate speeds are correlated with the dispersion state of nanotubes in the polymer matrix by using transmission electron microscopy and multispectral Raman mapping. We find that the complex shear modulus near structural percolation depends on the dispersion of the CNTs and the residence time in the extruder plays an important role in the final properties of the nanocomposite. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
ISSN:0021-8995
1097-4628
DOI:10.1002/app.38964