Surface-Active Properties of Nanofibers on the basis of Fibroin Silk and Copolymer Acrylonitrile
Abstract
Fibroin silk (FS) and Copolymer acrylonitrile (Co-AN) nanofibers are obtained by the electrospinning method and investigated their surface-active properties. The possibility of regulating the thickness of nanofibers of fibroin in the range of 100-300 nm has been revealed by changing the concentration of (5 -20%) electrospinning solution of FS in and the effects of high voltage 3-6 KV/cm relative to the distance from die (anode) to the screen (cathode). At such high voltage range obtained nanofibers with a thickness of 50 -500 nm from a solution of Co-AN in DMFA at concentrations of 5 -10%. Using a stationary screen with an area of 400 cm 2 as a receiver contributed to the arbitrary nanofibers storage in the form of non-woven material with a thickness of up to 10 mkm. It was found that, nonwoven materials are characterized by nanopores 50-300 nm, depending on the condition of forming nanofibers. Physical properties of nanofibers are investigated and it is shown that the nanofiber nonwoven materials (on the basis of these polymers adsorb water comparatively more than ethanol), demonstrates high efficiency in the filtration of waste engine oil, and interacts stably with metal ions at electro-osmosis, showing bioactivity as the nanocoating for open wounds.