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Title: Origin of mechanical modifications in poly (ether ether ketone)/carbon nanotube composite

Variations in the hardness of a poly (ether ether ketone) beam electrically modified with multi-walled carbon nanotubes (MWCNT, 0.5%-3%) are investigated. It is shown that both rupture and hardness variations correlate with the changes in carbon nanotube concentration when using micro indentation and extended Raman imaging. Statistical analysis of the relative spectral intensities in the Raman image is used to estimate local tube concentration and polymer crystallinity. We show that the histogram of the Raman D band across the image provides information about the amount of MWCNTs and the dispersion of MWCNTs in the composite. We speculate that we have observed a local modification of the ordering between pure and modified polymer. This is partially supported by small angle neutron scattering measurements, which indicate that the agglomeration state of the MWCNTs is the same at the concentrations studied.
Authors:
; ;  [1] ; ;  [2] ;  [3] ; ;  [4] ; ; ;  [5]
  1. CEMES-CNRS and University of Toulouse, 29 Jeanne Marvig, 31055 Toulouse (France)
  2. Université de Toulouse, Institut Clément Ader, I.U.T. Université Paul Sabatier - 133C Avenue de Rangueil - B.P. 67701, 31077 Toulouse CEDEX 4 (France)
  3. School of Physics and Astronomy, Queen Mary, University of London, Mile End Road, E1 4NS London (United Kingdom)
  4. ISIS Facility, Rutherford Appleton Laboratory, Chilton, OX11 0QX Didcot (United Kingdom)
  5. AIRBUS FRANCE (B.E. M and P Toulouse), 316 Route de Bayonne, 31060 Toulouse (France)
Publication Date:
OSTI Identifier:
22304031
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AGGLOMERATION; BEAMS; CARBON NANOTUBES; DISPERSIONS; ETHERS; HARDNESS; KETONES; MODIFICATIONS; NEUTRON DIFFRACTION; POLYMERS; RUPTURES; SMALL ANGLE SCATTERING