Kharchenko, S.
, Migler, K.
, Douglas, J.
, Obrzut, J.
and Grulke, E.
(2004),
Rheology, Processing and Electrical Properties of Multiwall Carbon Nanotube/Polypropylene Nanocomposites, Society of Plastics Engineers, Annual Technical Conference| 62nd Volume II | ANTEC 2004: Annual Technical Conference Proceedings | Society of Plastics Engineers, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852271
(Accessed April 26, 2024)
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Rheology, Processing and Electrical Properties of Multiwall Carbon Nanotube/Polypropylene Nanocomposites
Published
Author(s)
, , , , E A. Grulke
Abstract
Dispersal of a relatively small concentration [O (1 %) volume fraction] of multiwall carbon nanotubes (MWNT) into polypropylene (PP) is found to cause large and complex changes in nanocomposite transport properties. Specifically, both the shear viscosity and electrical conductivity of the MWNT nanocomposites decrease strongly with shear rate and, moreover, these dispersions exhibit impressively large and negative normal stresses. Additionally, when extruded, MWNT nanocomposites shrink rather than swell. We associate these flow-induced property changes with the formation of non-equilibrium percolated nanotube network structures.Proceedings Title
Society of Plastics Engineers, Annual Technical Conference| 62nd Volume II | ANTEC 2004: Annual Technical Conference Proceedings | Society of Plastics Engineers
Conference Dates
May 1, 2004
Conference Title
ANTEC (Society of Plastics Engineers. Technical Conference)
Pub Type
Conferences
Download Paper
Keywords
carbon nanotubes, electrical conductivity, normal sress, percolation, rheology
Citation
Created May 1, 2004, Updated February 17, 2017