Process induced orientation of nanolayers in polyolefin nanocomposites

Sharad Kumar, K. Jayaraman

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

  • 1 Citations

Abstract

Polypropylene nanocomposites with layered silicates have been prepared with and without edge functionalization by melt processing. The resulting composites were subjected to uniaxial extensional flow in the core of axisymmetric converging dies at strain rates of up to 5 s -1 and a Hencky strain of about 5. The edge treated clay led to a much greater level of exfoliation as determined by XRD, TEM and dynamic viscosity measurements. We observe that at the high strains, the nanolayers are predominantly oriented parallel to the flow direction in the core, in contrast to the perpendicular orientation reported by Okamoto et al. for uniaxial extension of nanocomposite strips to a strain of 1.3.

LanguageEnglish (US)
Title of host publicationAnnual Technical Conference - ANTEC, Conference Proceedings
Pages1498-1502
Number of pages5
Volume2
StatePublished - 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

Profile

Polyolefins
Nanocomposites
Viscosity measurement
Silicates
Strain rate
Polypropylenes
Clay
Transmission electron microscopy
Composite materials
Processing

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kumar, S., & Jayaraman, K. (2004). Process induced orientation of nanolayers in polyolefin nanocomposites. In Annual Technical Conference - ANTEC, Conference Proceedings (Vol. 2, pp. 1498-1502)

Process induced orientation of nanolayers in polyolefin nanocomposites. / Kumar, Sharad; Jayaraman, K.

Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2 2004. p. 1498-1502.

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

Kumar, S & Jayaraman, K 2004, Process induced orientation of nanolayers in polyolefin nanocomposites. in Annual Technical Conference - ANTEC, Conference Proceedings. vol. 2, pp. 1498-1502, ANTEC 2004 - Annual Technical Conference Proceedings, Chicago, IL., United States, 5/16/04.
Kumar S, Jayaraman K. Process induced orientation of nanolayers in polyolefin nanocomposites. In Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2. 2004. p. 1498-1502.
Kumar, Sharad ; Jayaraman, K./ Process induced orientation of nanolayers in polyolefin nanocomposites. Annual Technical Conference - ANTEC, Conference Proceedings. Vol. 2 2004. pp. 1498-1502
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