Conclusions
Diffusion coefficients of the precipitant in binary and ternary acrylonitrile systems have been determined at a constant temperature and over a wide range of solvent concentrations in the precipitation bath. The threshold precipitant concentration has been evaluated for each “polymer-solvent-precipitant” system.
It has been shown that the dependence of diffusion characteristics and of fibre strength has the character of an indirect correlation.
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Literature cited
A. Zyabitskii, Theoretical Bases of Fibre Spinning [in Russian], Khimiya, Moscow (1979).
Yu. P. Kozhevnikov, Quantitative Description of Diffusion Taking Place in The Wet-Spinning of Man-Made Fibres [in Russian], NIITÉKhIM, Moscow (1971).
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Additional information
Tashkent Textile and Light Industry Institute. Translated from Khimicheskie Volokna, No. 2, pp. 19–22, March–April, 1992.
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Dolzhikov, V.B., Zgibneva, Z.A. & Érgashev, K.É. Diffusion processes in spinning polyacrylonitrile fibres of low linear density. Fibre Chem 24, 101–105 (1993). https://doi.org/10.1007/BF00555024
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DOI: https://doi.org/10.1007/BF00555024