from the conferences organized by TANGER Ltd.
The work focuses on the development of a linear electrode for the production of flat nanofibrous material by spinning a polymer solution using the AC electrospinning technique. This method is characterized by high productivity and the absence of an electrically active collector, which predisposes it to the production of advanced nanofibrous structures that will find application in medical and technical applications such as filtration or tissue engineering.Current spinning electrodes for AC electrospinning are characterized by a spinning surface with an overcritical electric field strength, from which polymer jets and subsequent nanofibers are created in all directions. A spatial, hollow nanofibrous plume is created by the natural periodic interconnection of fibers in the area of the virtual collector. The transport and deposition of such a nanofibrous structure on the supportive spunbond is unstable, when due to the air emerging from the inner space with higher concentration of the residual solvent, folds and other defects are created.By the geometrically modified electrodes with the help of simulation tools for electric field analysis, it is possible to efficiently modify the geometry and the working surface of the electrode so that the nanofibers are formed only in a single plane, thereby eliminating the negative effects of the spatial nanofibrous plume.Based on the analyses, electrodes capable of continuous operation producing nanofibers in the single plane and in the desired direction producing a planar nanofiber structure are developed and tested.With the use of these advanced devices, it is possible to produce more homogeneous surface layered nanofiber materials and advanced nanofiber structures for use especially in medical applications.
Keywords: AC electrospinning, polymeric nanofibers, flat nanofibrous layer, electric field analysis, spinning electrode© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.