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
 Full text | 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.