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- Title
Effect of nanocrystalline cellulose addition on needleless alternating current electrospinning and properties of nanofibrous polyacrylonitrile meshes.
- Authors
Paulett, Katherine; Brayer, W. Anthony; Hatch, Katrina; Kalous, Tomáš; Sewell, Jerry; Liavitskaya, Tatsiana; Vyazovkin, Sergey; Fei Liu; Lukáš, David; Stanishevsky, Andrei
- Abstract
ABSTRACT Needleless alternating current (AC)-electrospinning is capable of achieving high nanofiber generation rates while adding more flexibility to the process development when compared to common direct current (DC)-electrospinning. However, AC-electrospinning process may produce very different results than DC-electrospinning when using the same precursors. This study demonstrated that stable AC-electrospinning of uniform and mechanically strong polyacrylonitrile (PAN) nanofibrous meshes can be achieved at 30 ± 5 kV rms voltage when 0.75-6.0 wt % of nanocrystalline cellulose-II with respect to PAN is added to a typical PAN precursor solution. Efficient generation (up to 2 g/h rate or 0.7 g h−1 cm−2 mass flux) of nanofibers with 250-500 nm fiber diameters has been observed when using flat fiber-generating electrodes with diameters up to 25 mm. Depending on the amount of nanocellulose, nanofibrous nanocellulose/PAN meshes revealed large variations in tensile modulus (90-273 MPa) and yield strength (1.0-2.5 MPa), whereas the fiber diameter, air permeability, air resistance, mesh porosity, and water absorption were less affected. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45772.
- Subjects
POLYACRYLONITRILES; CELLULOSE; ELECTROSPINNING; POLYACRYLATES; GLUCANS; NANOCRYSTALS manufacturing; NANOCRYSTAL synthesis
- Publication
Journal of Applied Polymer Science, 2018, Vol 135, Issue 5, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.45772