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Fibre Chemistry

, Volume 32, Issue 3, pp 151–156 | Cite as

Wet spinning of acrylic microfibres

  • A. T. Serkov
  • L. A. Zlatoustova
  • M. B. Radishevskii
Chemistry and Technology of Chemical Fibres

Abstract

Polyacrylonitrile microfibres with a linear density of 0.02–0.10 tex can be manufactured by wet spinning into spinning baths with a low concentration of precipitant. When the jets of spinning solution come into contact with such a spinning bath, a concentration of precipitant lower than the threshold concentration where coagulation does not take place is established on the surface of the fibre for a short time (0.02–0.56 sec). The spun fibres have a liquid segment longer than the stressed part of the jet exposed to normal stresses. Fibres with a liquid segment can be drawn by 5–10 times, which allows fabricating microfibres with a linear density of 0.02–0.10 tex having a strength of 45–80 cN/tex and elongation of 15–20%. Fibres spun into baths with a low concentration of precipitant have high porosity, which could be attributed to formation of a liquid polymer phase in phase decomposition of the spinning solution.

Keywords

Polymer Porosity Organic Chemistry Normal Stress High Porosity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic/Plenum Publishers 2000

Authors and Affiliations

  • A. T. Serkov
  • L. A. Zlatoustova
  • M. B. Radishevskii

There are no affiliations available

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