74th Annual Meeting of the APS Division of Fluid Dynamics (November 21, 2021 — November 23, 2021)

V0079: Nanofiber formation through centrifugal spinning

Authors

• Sooran Noroozi, Department of Chemical Engineering, Université Laval, Québec, QC G1V 0A6, Canada
• Hossein Hassanzadehkolarikola, Department of Chemical Engineering, Université Laval, Québec, QC G1V 0A6, Canada
• Walter Arne, Fraunhofer ITWM, Fraunhofer Platz 1, D-67663 Kaiserslautern, Germany
• Ronald G Larson, Department of Chemical Engineering, University of Michigan, Michigan 48109, USA
• Seyed Mohammad Taghavi, Department of Chemical Engineering, Université Laval, Québec, QC G1V 0A6, Canada

DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0079

Large surface area-to-volume ratio and special morphology of the nanofibers cause them to have remarkable properties such as excellent mechanical properties, heat transfer capacity and electrical features. However, there are many limitations that the current methods of nanofiber production are faced with: (i) low production rate, (ii) restrictions on materials, (iii) process complexity, and (iv) high production cost.  Increasing demand for nanofibers in many applications such as air and water filtering, sensors and protective masks (specially due to rise of COVID19) motivates many efforts for eliminating these barriers. Nanofibers produced through Centrifugal Spinning (CS) technique have recently been fabricated with high throughput, low operating costs and broad range of material choice. However,  CS technique sufferes from jet instability through the process caused by air-to-fibre drag and surface forces. Through this video, we try to show these type of instabilities through the CS technique.