Thermotropic Gelation in Wet Spinning of Fibres from Polymer Solutions

A mathematical analytical model of thermotropic gelation in heat exchange of a jet of polymer solution in a spinning bath was plotted by considering the phase equilibrium diagram of the polymer--solvent--precipitator system and the heat transfer process. The law of the change in gel layer thickness...

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Bibliographic Details
Published inFibre chemistry Vol. 32; no. 4; pp. 274 - 278
Main Authors Kalabin, A L, Pakshver, E A
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.07.2000
Subjects
Fibers
Fibres
Fourier analysis
Gelation
Heat exchange
Heat transfer
Mathematical analysis
Mathematical models
Phase diagrams
Studies
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Summary:A mathematical analytical model of thermotropic gelation in heat exchange of a jet of polymer solution in a spinning bath was plotted by considering the phase equilibrium diagram of the polymer--solvent--precipitator system and the heat transfer process. The law of the change in gel layer thickness in time was determined and the duration of total thermotropic gelation was estimated. It was shown that the qualitative behavior of the functions of the gel layer thickness versus time is close to a unit step function, the duration of total gelation for the thermotropic process is approximately 0.1 sec, and the corresponding value of the Fourier number, Fo^sub g^ 2.[PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0015-0541
1573-8493
DOI:10.1023/A:1004107316671