Surface Wettability of Polyvinyl Butyral Nanofibrous Membranes (Pages 8-14)

Petra Peer1, Aneta Cmarova2,3 and Martin Stenicka4

1Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 5, 166 12 Prague 6, Czech Republic; 2Department of Polymer Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 275, 760 01 Zlin, Czech Republic; 3Professorship of Plastics Engineering, Chemnitz University of Technology, Reichenhainer Str. 70, 091 26 Chemnitz, Germany; 4Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, T. Bata Av. 5678, 760 01 Zlín, Czech Republic

Abstract: This study explores the mutual correlation between structures of electrospun fibrous membranes prepared from polyvinyl butyral (PVB) and the wettability of the same. The final morphology of the fibres (wrinkled, smooth, ribbon-like and porous) was investigated by dissolving the PVB in various solvents and solvent mixtures. It was found that some concentrations of PVB in certain solvents and their mixtures exerted an influence on the diameter of the given fibre and water contact angle. The nanofibrous membranes were produced via electrospinning, and characterized by scanning electron microscopy (SEM) and measurement of contact angle. Discussion is included on comparison of the wettability of the PVB films and nanofibres.

Keywords: Electrospinning, Nanofibres, Polyvinyl butyral, Contact angle, Wettability.