Determination of Expedient Conditions of Electrospinning Using Variously Designed Spinning Heads

Heightening of interest in manufacture of electrospun nano- and microfibers is associated with the unique properties and characteristics of the produced nonwoven coatings and structures. This article is dedicated to determination of expedient conditions of nanofiber materials production on a Fluidnatek LE-50 equipment using variously designed spinning heads. The distinctive features and specific nature of the nanofibers produced on a coaxial spinning head are described. Experimental investigations of the process of electrospinning of materials from polyvinyl alcohol solution are conducted. The dependence of the flow rate of fiber-forming solution on the emitter voltage and the distance between the electrodes of the equipment for each spinning head was established by statistical processing of the experimental data. The equipment operation conditions that ensure steady occurrence of the process at the maximum solution flow rate are determined.