The role of interfacial chemistry and interactions in the dynamics of thermosetting polyurethane-multiwalled carbon nanotube composites at low filler contents

Lyudmyla V. Karabanova, Raymond L D Whitby, Vladimir A. Bershtein, Alina V. Korobeinyk, Pavel N. Yakushev, Oksana M. Bondaruk, Andrew W. Lloyd, Sergey V. Mikhalovsky

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Acid-oxidized multiwalled carbon nanotubes (MWCNTs) were introduced into a polyurethane (PU) matrix at low filler levels (0.01-0.25 wt%) through either van der Waals or covalent interactions, and their glass transition dynamics using dynamic mechanical analysis and laser-interferometric creep rate spectroscopy was investigated. The nanocomposites reveal substantial impact on the PU glass transition dynamics, which depends on the nanotube content and type of interfacial interactions. The pronounced dynamic heterogeneity within the glass transition covering 200 C range and the displacement of main PU relaxation maxima from around 0 to 80-140 C were registered. The results are treated in the framework of chemical inhomogeneity, constrained dynamics effects, and different motional cooperativities. The peculiariaties of the glass transition dynamics in the composites are reflected in their dynamic and static mechanical properties, in particular a two- to threefold increase in modulus and tensile strength for the covalent interfacial interaction of MWCNTs with PU.

Original languageEnglish
Pages (from-to)573-583
Number of pages11
JournalColloid and Polymer Science
Volume291
Issue number3
DOIs
Publication statusPublished - Mar 2013
Externally publishedYes

Fingerprint

Polyurethanes
Multiwalled carbon nanotubes (MWCN)
Surface chemistry
fillers
Fillers
carbon nanotubes
chemistry
composite materials
Glass transition
Composite materials
interactions
glass
Dynamic mechanical analysis
Nanotubes
Nanocomposites
Creep
tensile strength
Tensile strength
nanotubes
Spectroscopy

Keywords

  • Carbon nanotubes
  • Dynamics
  • Interfacial interactions
  • Nanocomposites
  • Polyurethane

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry
  • Colloid and Surface Chemistry

Cite this

Karabanova, L. V., Whitby, R. L. D., Bershtein, V. A., Korobeinyk, A. V., Yakushev, P. N., Bondaruk, O. M., ... Mikhalovsky, S. V. (2013). The role of interfacial chemistry and interactions in the dynamics of thermosetting polyurethane-multiwalled carbon nanotube composites at low filler contents. Colloid and Polymer Science, 291(3), 573-583. https://doi.org/10.1007/s00396-012-2745-4

The role of interfacial chemistry and interactions in the dynamics of thermosetting polyurethane-multiwalled carbon nanotube composites at low filler contents. / Karabanova, Lyudmyla V.; Whitby, Raymond L D; Bershtein, Vladimir A.; Korobeinyk, Alina V.; Yakushev, Pavel N.; Bondaruk, Oksana M.; Lloyd, Andrew W.; Mikhalovsky, Sergey V.

In: Colloid and Polymer Science, Vol. 291, No. 3, 03.2013, p. 573-583.

Research output: Contribution to journalArticle

Karabanova, LV, Whitby, RLD, Bershtein, VA, Korobeinyk, AV, Yakushev, PN, Bondaruk, OM, Lloyd, AW & Mikhalovsky, SV 2013, 'The role of interfacial chemistry and interactions in the dynamics of thermosetting polyurethane-multiwalled carbon nanotube composites at low filler contents', Colloid and Polymer Science, vol. 291, no. 3, pp. 573-583. https://doi.org/10.1007/s00396-012-2745-4
Karabanova, Lyudmyla V. ; Whitby, Raymond L D ; Bershtein, Vladimir A. ; Korobeinyk, Alina V. ; Yakushev, Pavel N. ; Bondaruk, Oksana M. ; Lloyd, Andrew W. ; Mikhalovsky, Sergey V. / The role of interfacial chemistry and interactions in the dynamics of thermosetting polyurethane-multiwalled carbon nanotube composites at low filler contents. In: Colloid and Polymer Science. 2013 ; Vol. 291, No. 3. pp. 573-583.
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