A Review on Centrifugal and Electro-Centrifugal Spinning as New Methods of Nanofibers Fabrication

In the recent years, by developing the methods of nanofibers formation, electro-centrifugal spinning has been introduced as a new method of nanofibers fabrication. This nanofabrication technique is a combination of known technique called electrospinning and a new coming method called centrifugal spinning. This paper is a comparative study among conventional electrospinning, centrifugal spinning and the basis of electro-centrifugal spinning methods. For instance, although, the distance of nozzle to collector is a critical operating parameter to determining nanofibers diameter in electrospinning method, it only shows an effect on the morphology and has no significant effect on the fiber diameter in centrifugal spinning. Surface tension and viscosity of the solutions are the spinning-ability determinatives in these three methods which are affected by the type of polymers and solvents and also the concentration of the solution, and need to be overcome through electrical or centrifugal forces or both. The effective parameters on the process and the fiber morphology are investigated for each of the three methods