Kinetic stabilility of the well-exfoliated state in polypropylene-clay nanocomposites made by solid-state shear pulverization

Kosmas G. Kasimatis*, John M Torkelson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Analysis by electron microscopy, x-ray diffraction/scattering and DSC has revealed that well-exfoliated states can be achieved in polypropylene (PP)-clay nanocomposites using a novel non-equilibrium processing method called solid-state shear pulverization (SSSP). Such well-exfoliated states cannot be achieved in PP/clay nanocomposites by melt processing. Nanocomposites made via SSSP have been found by x-ray and DSC analysis to remain well-exfoliated after 1.5 to 2 hr of annealing in the melt state of PP. Thus, even if a well-exfoliated state is not thermodynamically favored, it is kinetically stable over long times in the melt state.

Original languageEnglish (US)
Title of host publicationANTEC 2004 - Annual Technical Conference Proceedings, Volume 2
Subtitle of host publicationMaterials
Pages1503-1507
Number of pages5
Volume2
StatePublished - Jun 1 2004
EventANTEC 2004 - Annual Technical Conference Proceedings - Chicago, IL., United States
Duration: May 16 2004May 20 2004

Other

OtherANTEC 2004 - Annual Technical Conference Proceedings
CountryUnited States
CityChicago, IL.
Period5/16/045/20/04

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Keywords

  • Clay
  • Nanocomposite
  • Polypropylene
  • Pulverization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kasimatis, K. G., & Torkelson, J. M. (2004). Kinetic stabilility of the well-exfoliated state in polypropylene-clay nanocomposites made by solid-state shear pulverization. In ANTEC 2004 - Annual Technical Conference Proceedings, Volume 2: Materials (Vol. 2, pp. 1503-1507)