Open AccessPVA/CA based electrospun nanofibers: Influence of processing parameters in the fiber diameter
Author(s) -
Marta A. Teixeira,
M. T. Pessoa de Amorim,
Helena P. Felgueiras
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/634/1/012040
Subject(s) - electrospinning , nanofiber , vinyl alcohol , materials science , distilled water , cellulose acetate , cellulose , chemical engineering , polymer , fiber , nanoscopic scale , acetic acid , polyvinyl alcohol , composite material , polymer chemistry , nanotechnology , chemistry , chromatography , organic chemistry , engineering
Recently, the electrospinning technique has been explored as a natural and synthetic polymer processing tool due to its versatility and potential to generate complex structures at a nanoscale. In this work, non-woven nanofibrous mats were electrospun, with a structure resembling the extracellular matrix, for prospective biomedical uses. Poly (vinyl alcohol) (PVA) and cellulose acetate (CA) based electrospun nanofibrous meshes were prepared at different ratios 100/0, 90/10, 80/20 and 70/30 and characterized in terms of fiber diameter. The process was kept as green as possible by resorting to a combination of acetic acid and distilled water as solvents. Optimal conditions for PVA/CA processing were established at 29 kV, feeding rate of 0.8 mL/h and distance between needle and collector of 17 cm. These allowed for the most uniform fibers with the smallest diameters to be produced.