TITLE

Transversal electrostatic strength of patterned collector affecting alignment of electrospun nanofibers

AUTHOR(S)
Pokorny, Marek; Niedoba, Krzysztof; Velebny, Vladimir
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p193111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Conventional electrospinning produces randomly ordered nanofibers, however many potential applications require precisely defined morphology and anisotropic properties of nanofibrous materials. In this work, a collector consisting of two segments has been used to prepare uniaxially ordered nanofibers. Optimized collector design comes from both analytical calculations of electrostatic strength in the vicinity of the electrodes and from experimental verification by polyvinyl alcohol nanofibers fabrication. The transversal electric strength is a key factor in achieving very well aligned nanofibers. The results presented here help provide a better understanding of the electrically induced alignment mechanism.
ACCESSION #
50510770

 

Related Articles

  • Elektro Çekim Yöntemi Ä°ÅŸlem Parametrelerinin PVA Nanolif Morfolojisine Etkileri. İkiz, Yüksel // Pamukkale University Journal of Engineering Sciences;2009, Vol. 15 Issue 3, p363 

    PVA (poly-vinyl-alcohol) solutions in different concentrations and viscosities were prepared and electrospinned to produce nanofibers. SEM images of nanofibers were taken and effect of process parameters (viscosity, voltage and tip to collector distance) were observed. Results showed that...

  • ESD Susceptibility of Precision-film Resistors. Colnar, Jim; Ladd, Kenneth; Peirce, Roger // SMT: Surface Mount Technology;Sep2006, Vol. 20 Issue 9, p36 

    The article discusses findings about the electrostatic discharge susceptibility of precision reeled resistors. The charged device model (CDM) stress tests and human body model stress testing were performed using two different simulators. The CDM stress tests is performed to evaluate the...

  • Longitudinal DC Electric Discharge in a Supersonic Air Flow. Bychkov, V.L.; Grachev, L.P.; Esakov, I.I.; Ravaev, A.A.; Khodataev, K.V. // Technical Physics;Jul2004, Vol. 49 Issue 7, p833 

    A longitudinal dc electric discharge in a submerged high-pressure supersonic air jet is described. Photographs of the discharge are provided. The experimental voltage across the discharge gap and the discharge current are given for two resistances of the resistor that limits the discharge...

  • Fabrication and Characterization of LaCoO3 Nanofibers via an Electrospinning Technique. Jinxian Wang; Xiangting Dong; Zhen Qu; Guixia Liu; Wensheng Yu // International Journal of Chemistry;Feb2010, Vol. 2 Issue 1, p161 

    Polyvinyl alcohol(PVA)/[La(NO3)3+Co(CH3COO)2] composite nanofibers were prepared by combination of sol-gel method and electrospinning technique, and crystalline LaCoO3 nanofibers were fabricated by calcination of the PVA/[La(NO3)3+Co(CH3COO)2] composite nanofibers at 600°C for 10h. The...

  • DETECTION OF CWEDM PROCESS IRREGULARITY WITH DISCHARGE PULSES MONITORING. GJELDUM, Nikola; VEZA, Ivica; BILIC, Bozenko; BAJIC, Drazen // Annals of DAAAM & Proceedings;Jan2009, p1217 

    Wire Electrical Discharge Machining (WEDM) is a thermoelectric process that erodes workpiece material by a series of discrete electrical sparks between the workpiece and travelling wire electrode, it can be used in production of parts from electrical conductive materials, which are difficult to...

  • The formation of carbon nanotubes on copper electrodes under the arc discharge conditions. Il'in, A. M.; Messerle, V. E.; Ustimenko, A. B. // High Energy Chemistry;Jul2010, Vol. 44 Issue 4, p326 

    The results of experiments on the pyrolysis of hydrocarbon gases in electric arc discharge between copper electrodes and the results of computer simulation by the method of molecular orbitals have been presented. The complex of studies of the plasma-chemical method of carbon nanotubes formation...

  • Three-jet electrospinning using a flat spinneret. Feng-Lei Zhou; Rong-Hua Gong; Porat, Isaac // Journal of Materials Science;Oct2009, Vol. 44 Issue 20, p5501 

    Electrospinning is a simple but highly versatile technology to produce nanofibers from solutions or melts mostly of polymers using electrostatic forces. A primary challenge facing electrospinning is its low productivity mainly limited by flow rate. In this work, a custom-made three-hole...

  • Detachment of a Charged Nano-jet for Fabrication of Nanoporous Materials. Liang Wang; Ji-Huan He; Lan Xu; Lu-Feng Mo // Journal of Nano Research;2013, Vol. 23, p117 

    A charged jet can be accelerated by an electrostatic field for fabrication of continuous micro/nanofibers. A higher voltage results in smaller nanofibers. However, when the voltage surpasses a threshold value, discontinuous nanomaterials can be fabricated.

  • Investigation and Estimation of Structure of Web from Electrospun Nanofibres. Malašauskienė, Jolanta; Milašius, Rimvydas // Journal of Nanomaterials;2013, p1 

    During the electrospinning process the web of nanofibres is manufactured by means of electrostatic forces between two electrodes. The diameters of nanofibres usually differ and they depend on various parameters. The different fineness of fibres influences the structure of the web and herewith...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics