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

• Autorzy: Chvojka J. , Hinestroza J. P. , Lukas D.
• Języki publikacji: EN

Abstrakty

EN

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.

PL

Praca przedstawia metodę elektroprzędzenia do produkcji materiałów nanowłóknistych z nanowłókien PVA w skali laboratoryjnej. Przedstawiono również procedurę późniejszego wytwarzania skręconych przędz z połączonych taśm nanowłókien. W badaniach zastosowano elektroprzędzenie filierowe jaki i bezfilierowe. Właściwości mechaniczne wytworzonych przędz badano stosując VIBRODYN 400, ich morfologię badano za pomocą mikroskopii optyczna i elektronowej. Praca przedstawia również prostą analizę natężenia pola, która prowadzi do dominującego jednokierunkowego osadzania się włókien między sąsiadującymi lamelami specjalnego kolektora. Analizę natężenia pola przeprowadzono analitycznie i modelowo stosując program COMSOL Multiphysics.

Słowa kluczowe

EN

needle-less electrospinning; aligned nanofibers; nanoyarns

PL

elektroprzędzenie filierowe; wyrównanie nanowłókien; przędza nano

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2013
• Tom: Vol. 21, no. 2 (98)
• Strony: 28--31
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Chvojka J.

• Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
• NanoScience Centre, Faculty of Textile Engineering, Technical University of Liberec, Liberec, Czech Republic

autor

Hinestroza J. P.

• Fiber Science Program, College of Human Ecology, Cornell University, Ithaca, USA

autor

Lukas D.

• Centre for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
• NanoScience Centre, Faculty of Textile Engineering, Technical University of Liberec, Liberec, Czech Republic

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