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Needleless electrospinning of PA6 fibers : the effect of solution concentration and electrospinning voltage on fiber diameter
Aulova, Alexandra (Avtor), Bek, Marko (Avtor), Kossovich, Leonid (Avtor), Emri, Igor (Avtor)

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Izvleček
Needleless electrospinning is the process of forming thin material fibers from the open surface of its solution or melt in a strong electrostatic field. Electrospun non-woven materials are used in various applications that require specific fiber diameters and pore size distributions. Fiber diameter depends on the properties of the polymer solution and manufacturing conditions. A needleless electrospinning process using the Nanospider setup was investigated using the commonly used polyamide 6 (PA6) solution in a mixture of acetic and formic acids. Polymer solutions with different polymer concentrations were characterized by viscosity, surface tension and electrical conductivity. An increase in polymer content in the solution resulted in the exponential increase of the solution viscosity, polynomial increase of electrical conductivity and had almost no effect on surface tension. The effect of the polymer concentration in the solution, as well as electrospinning voltage on fiber diameter and diameter distribution, was investigated using scanning electron microscopy images. The average fiber diameter linearly increases with the increased polymer concentration and also demonstrates an increase with increased electrospinning voltage, although less pronounced. Therefore, a change in the PA6 solution concentration should be used for the robust adjustment of fiber diameter, while changes in electrospinning voltage are more appropriate for fine tuning the fiber diameter during the process of needleless electrospinning.

Jezik:Angleški jezik
Ključne besede:needleless electrospinning, nanospider, fiber diameter, solution concentration, voltage
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2020
Št. strani:str. 421-430
Številčenje:Vol. 66, no. 6
UDK:621.3.027+620.3(045)
ISSN pri članku:0039-2480
DOI:10.5545/sv-jme.2020.6713 Povezava se odpre v novem oknu
COBISS.SI-ID:25874179 Povezava se odpre v novem oknu
Število ogledov:108
Število prenosov:99
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
 
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Gradivo je del revije

Naslov:Strojniški vestnik
Skrajšan naslov:Stroj. vestn.
Založnik:Zveza strojnih inženirjev in tehnikov Slovenije [et al.], = Association of Mechanical Engineers and Technicians of Slovenia [et al.]
ISSN:0039-2480
COBISS.SI-ID:762116 Povezava se odpre v novem oknu

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:L2-7550
Naslov:Nano strukturirani vlaknasti materiali za ciljno depozicijo zdravilnih učinkovin, izdelani z electrospinningom

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0264
Naslov:Trajnostni Polimerni materiali in Tehnologije

Financer:Drugi - Drug financer ali več financerjev
Številka projekta:Fresenius Kabi Deutschland GmbH
Naslov:

Sekundarni jezik

Jezik:Slovenski jezik
Naslov:Brezigelno elektropredenje vlaken PA6: vpliv koncentracije raztopine in električne napetosti na premer vlaken
Ključne besede:brezigelno elektropredenje, nanospider, PA6, premer vlaken, koncentracija raztopine, električna napetost

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