Needleless electrospinning of PA6 fibers: The effect of solution concentration and electrospinning voltage on fiber diameter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F20%3A63526442" target="_blank" >RIV/70883521:28610/20:63526442 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sv-jme.eu/?ns_articles_pdf=/ns_articles/files/ojs/6713/public/6713-37218-1-PB.pdf&id=6486" target="_blank" >https://www.sv-jme.eu/?ns_articles_pdf=/ns_articles/files/ojs/6713/public/6713-37218-1-PB.pdf&id=6486</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5545/sv-jme.2020.6713" target="_blank" >10.5545/sv-jme.2020.6713</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Needleless electrospinning of PA6 fibers: The effect of solution concentration and electrospinning voltage on fiber diameter

Popis výsledku v původním jazyce

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. © 2020 Journal of Mechanical Engineering.

Název v anglickém jazyce

Needleless electrospinning of PA6 fibers: The effect of solution concentration and electrospinning voltage on fiber diameter

Popis výsledku anglicky

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. © 2020 Journal of Mechanical Engineering.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Strojniški vestnik – Journal of Mechanical Engineering

ISSN

0039-2480

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

7-8

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

10

Strana od-do

421-430

Kód UT WoS článku

000579915600001

EID výsledku v databázi Scopus

2-s2.0-85090384651