Transient shear flow behavior of concentrated long glass fiber suspensions in a sliding plate rheometer

Autor: Neeraj Agarwal, Aaron P. R. Eberle, Kevin Ortman, Peter Wapperom, Donald G. Baird, A. Jeffrey Giacomin
Rok vydání: 2011
Předmět:
Zdroj: Journal of Non-Newtonian Fluid Mechanics. 166:884-895
ISSN: 0377-0257
DOI: 10.1016/j.jnnfm.2011.04.007
Popis: In order to eventually predict the behavior of long fiber suspensions in complex flows commonly found in processing operations, it is necessary to understand their rheology and its connection to the evolution of fiber orientation and configuration in well defined flows. In this paper we report the transient behavior at the startup of shear flow of a polymer melt containing long glass fibers with a length (L) >1 mm, using a sliding plate rheometer (SPR). The operation of the SPR was confirmed by comparing the transient shear viscosity (η+) for a polymer melt and a melt containing short glass fibers (L
Databáze: OpenAIRE