CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Needleless electrospinning of PA6 fibers: The effect of solution concentration and electrospinning voltage on fiber diameter
Authors
Alexandra Aulova
Marko Bek
Igor Emri
Leonid Kossovich
Publication date
15 September 2020
Publisher
Assoc. of Mechanical Eng. and Technicians of Slovenia
Abstract
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.Slovenian Research AgencySlovenian Research Agency - Slovenia [L2-7550, P2-0264]; Fresenius Kabi Deutschland Gmb
Similar works
Full text
Open in the Core reader
Download PDF
Available Versions
Institutional repository of Tomas Bata University Library
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:publikace.k.utb.cz:10563/1...
Last time updated on 25/09/2020