Nanofibers Fabrication by Blown‐Centrifugal Spinning. Issue 2 (2nd January 2022)

• Record Type: Journal Article
• Authors: Ayati, Seyed Shahaboddin; Karevan, Mehdi; Stefanek, Evan; Bhia, Mohammed; Akbari, Mohsen
• Is Part Of: Macromolecular materials and engineering. Volume 307:Issue 2(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-02
• Subjects: blown‐centrifugal spinning -- centrifugal spinning -- chitosan -- nanofibers -- polycaprolactone -- polymers -- solution blowing; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.202100368
• Languages: English
• ISSNs: 1438-7492

Abstract

Abstract: Here, a new, simple, and effective fabrication method of random and aligned nanofibers by utilizing centrifugal spinning and solution blowing is shown. This process, termed blown‐centrifugal spinning (BCS), capitalizes on a rotating reservoir and uses high velocity expanding gas to extrude fibers. The polymer solution is injected from the orifice of the reservoir and is brought in contact with the airflow on the reservoir's surface. The fiber morphology bears a relationship with airflow rate, solution viscosity, surface tension, and solvent evaporation rate. Fiber formation in the flowing stream is controlled by dynamic pressures, surface tension, and viscous forces. Abstract : In this paper, a new spinning method, termed blown‐centrifugal spinning (BCS), is developed using elements of both centrifugal spinning and solution blow spinning methods as an alternative method for making nonwoven mats of micro‐ and nanofibers. Fiber morphology, diameter, and mat porosity can be controlled by gas pressure, choosing solvent, and polymer solution properties.