Polyurethane/multiwalled carbon nanotube nanowebs prepared by an electrospinning process

Citation data:

Journal of Applied Polymer Science, ISSN: 0021-8995, Vol: 111, Issue: 6, Page: 2711-2714

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http://hdl.handle.net/10563/1001045, http://publikace.k.utb.cz/handle/10563/1001045
Kimmer, Dušan, Petráš, David, Zatloukal, Martin, Olejník, Robert, Sáha, Petr, Slobodian, Petr
Wiley-Blackwell, John Wiley & Sons, Inc.
Materials Science, Chemistry, vlákna, polyuretany, nanokompozity, electrospinning, nanosíťky, Fibers, Polyurethanes, Nanocomposites, Electrospinning, Nanowebs
article description
Polyurethane (PU) and PU/multiwalled carbon nanotube (MWCNT) nanoeomposite nanofibers, both with diameters of 350 rim, were prepared by an electrospinrtirtg process from PU dimethylformamide solutions. The appearance of nanowebs in PU/MWCNT nanofiber structures containing PU fibers with diameters of 20-40 nm was observed. The existence of these structures could have been based on the occurrence of strong secondary electric fields, which were created between individual conducting MWCNTs (distributed in the PU/MWCNT nanocomposites), which started to behave as the local moving nanoelectrodes promoting the creation of additional very fine nanowebs during the electrospinning processes. To our knowledge, this is the first report describing nanowebs from synthetic polymers prepared by an electrospinning process. © 2008 Wiley Periodicals, Inc.

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