Orbital - Vol. 12 No. 1 - January-March 2020
FULL PAPERS

Solution Blow Spinning Poly(vinyl alcohol) Sub-microfibers Produced from Different Solvents

Jessica Lima Viana
Universidade Federal de Mato Grosso do Sul
Thiago França
Universidade Federal de Mato Grosso do Sul
Cicero Cena
Universidade Federal de Mato Grosso do Sul
Published May 2, 2020
Keywords
  • nanofibers,
  • poly(vinyl alcohol),
  • rheology,
  • viscosity,
  • solution blow spinning
How to Cite
(1)
Viana, J. L.; França, T.; Cena, C. Solution Blow Spinning Poly(vinyl Alcohol) Sub-Microfibers Produced from Different Solvents. Orbital: Electron. J. Chem. 2020, 12, 1-6.

Abstract

Poly (vinyl alcohol) (PVA) presents a good chemical stability at room temperature, and interesting physical and mechanical properties that enable a wide range of applications of this material. The relationship between the type of polymer-solvent interaction and the physical properties of the gel can be considered, as a key factor to produce PVA micro- and nanofibers by solution blow spinning (SBS) technique. In this work, the influence of changes in the polymer-solvent interaction as a function of the solvent composition on SBS fiber formation are presented. The low molecular weight PVA solutions were obtained by dissolving the PVA in deionized water, and then adding a more volatile solvent to adjust the final concentration at 0.08 g/mL. The addition of different solvents was performed to modify the chemical nature of the solvent and consequently the polymer-solvent interaction. The viscosity measurements were performed as a function of temperature and shear rate. The rheological characterization of the solutions revealed significant changes in the viscosity value as a function of the solvent nature, although the solution´s rheological behavior showed no significative changes. Finally, the solutions showed potential to produce homogeneous PVA sub-microfibers by solution blow spinning technique.

DOI: http://dx.doi.org/10.17807/orbital.v12i1.1169