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Homogeneity of multilayers produced with a static mixer
Author(s) -
Van Der Hoeven J. C.,
WimbergerFriedl R.,
Meijer H. E. H.
Publication year - 2001
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10706
Subject(s) - homogeneity (statistics) , materials science , static mixer , mechanics , inlet , static pressure , mixing (physics) , composite material , mechanical engineering , computer science , physics , engineering , quantum mechanics , machine learning , viscosity
A multiflux static mixer can be used to produce multilayered structures. The flow is repeatedly cut, stretched and stacked by mixing elements in the channel of such a device. In the standard design, however, the obtained layer thicknesses are inhomogeneous. The causes for the multiflux static mixer's deviation from ideal behavior are identified by 3D numeical simulations as unequal pressure drops in the separating flows. Changes in the arrangements of the elements are proposed and their effects are verified by simulations and experiments. A significant improvement of the layer homogeneity is achieved by introducing additional elements with separatings walls at the inlets and at the outlets of the mixing elements.