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Melt‐spun hollow fibers: Modeling and experiments
Author(s) -
De Rovère Anne,
Shambaugh Robert L.
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.10822
Subject(s) - materials science , polypropylene , composite material , melt spinning , spinning , fiber , viscoelasticity , constitutive equation , newtonian fluid , rheology , mechanics , line (geometry) , thermodynamics , geometry , physics , finite element method , mathematics
Polypropylene hollow fibers were prepared via melt spinning at speeds of 1000–2500 m/min. The outside diameters of the fibers were measured on‐line with high‐speed photography. The fiber formation process was modeled with momentum, energy, and two continuity equations (one for the polymer, and one for the lumen fluid). The equations were solved numerically, and the results were compared to the on‐line diameter data. Both Newtonian and viscoelastic constitutive equations were considered.