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Production of Poly(vinylalcohol) Nanoyarns Using a Special Saw-like Collector

Research and development

Authors:

  • Chvojka Jiri
    Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
  • Chvojka Jiri
    NanoScience Centre, Faculty of Textile Engineering, Technical University of Liberec, Liberec, Czech Republic
  • Hinestroza J. P.
    Fiber Science Program, College of Human Ecology, Cornell University, Ithaca, USA
  • Lukas David
    Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
  • Lukas David
    NanoScience Centre, Faculty of Textile Engineering, Technical University of Liberec, Liberec, Czech Republic

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Abstract:

This work introduces an electrospinning method for laboratory-scale production of nanofibrous materials from polyvinylalcohol (PVA) nanofibres. A procedure for the subsequent production of twisted yarns from the aligned nanofibrous strand is introduced as well. Both needle and needleless electrospinning variants were employed. Mechanical properties of the nanoyarns produced were tested using a VIBRODYN 400 and their morphology was investigated by light and electron microscopy. The work also introduces a simple analysis of the field strength that causes the prevailing unidirectional fiber deposition between neighbouring lamellae of a special saw-like collector. The field strength analysis was carried out both analytically and by modelling based on the software COMSOL Multiphysics.

Tags:

needle-less electrospinning, aligned nanofibers, nanoyarns.

Citation:

Chvojka J, Hinestroza JP, Lukas D. Production of Poly(vinylalcohol) Nanoyarns Using a Special Saw-like Collector. FIBRES & TEXTILES in Eastern Europe 2013; 21, 2(98): 28-31.

Published in issue no 2 (98) / 2013, pages 28–31.

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