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https://hdl.handle.net/2142/82353
Description
Title
Modeling of Dry Spinning of Polymer Fibers
Author(s)
Gou, Zeming
Issue Date
2003
Doctoral Committee Chair(s)
McHugh, Anthony J.
Department of Study
Chemical Engineering
Discipline
Chemical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Chemical
Language
eng
Abstract
The developed two-dimensional dry spinning model together with a die swell subroutine supplied by an industrial company has been used to generate predictions, which were compared to experimental data. Based on the analysis of the predictions and comparisons, we learn that phase separation cannot occur during dry spinning because the solvent concentration path does not cross over the binodal curve; instead, it passes into the homogeneous glass transition region. Model predictions were compared with concentration data for different DPF (denier per fiber) fibers and fairly good agreement is acquired by tuning the prefactors in the phenomenological diffusion coefficients. It is also suggested that more systematic diffusion coefficient measurements are needed. (Abstract shortened by UMI.).
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