Nanofiber formation through centrifugal spinning

Nanofiber formation through centrifugal spinning
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: doi.org/10.1103/APS.DFD.2021....
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.
See other videos from the 2021 Gallery of Fluid Motion: gfm.aps.org/