SELECTIVE DEPOSITION OF NANOFIBERS NET ON TEXTILE STRUCTURES

Nanotechnology has evolved in the last years and nowadays there are many technologies related with the development of nanoparticles (NPs) or nanofibers (NFs). Due to the wide variety of polymers and diverse applications, filtration, medicine, cosmetic, etc., the study of those NFs is still of interest nowadays. In this work the NFs net created from electrospinning is used as a coating for fabrics. The aim of this work is to demonstrate how fibres are placed on the fabrics and if there is a tendency or they are located randomly. Two different fabrics were used a 100 % cotton plain 115g/m2 and a 100% polyamide knitting fabric 60 g/m2. A PVA solution (9% w/v) was used to create NFs which were placed on the fabrics. This solution was prepared by heating water at 80º C till complete solution of the polymer. Electrospinning was designed for a vertical collector with 15 cm distance from the needle. The flow rate was 0,5 mL/h with 15 or 20 kV for 15 minutes. Results evidenced the tendency of NFs net to be located on the fibres and consequently we could conclude the fabric is designing the position where the fibres would be placed. Furthermore, we could demonstrate that the presence of a fabric with reduced density implies deposition of NFs on both the fabric and the collector.