Effect of electrospinning process variables on the size of polymer fibers and bead-on-string structures established with a 2³ factorial design

• Paulina Korycka,
• Adam Mirek,
• Katarzyna Kramek-Romanowska,
• Marcin Grzeczkowicz and
• Dorota Lewińska

Beilstein J. Nanotechnol. 2018, 9, 2466–2478, doi:10.3762/bjnano.9.231

• to be obtained with expected features. Keywords: bead-on-string structure; electrospinning; factorial design; polymer fiber; Introduction Since the beginning of the 21st century, the interest in electrospinning processes has been growing constantly. The reason for this is the wide range of

• ) and (B) maximum electrical voltage (U = 1). Dynamic viscosity of polyvinylpyrrolidone (PVP) solutions. Process variables selected for the factorial analysis for fiber diameter. Process variables selected for the factorial analysis of bead size and fiber diameter in the fibrous mats with bead-on-string

• structure. Experimental variants for a 23 factorial design including the average diameter of the obtained beadless fibers (D). SD is the standard deviation. Design matrix of a 23 factorial design. Model matrix of a 23 factorial design. The model coefficients determining the impact of solution dynamic