Formation mechanism of highly aligned nanofibers by a modified bubble electrospinning

Abstract

A modified bubble electrospinning by placing a positively charged ring between the bubble and the parallel electrode collector was presented to fabricate highly aligned nanofibers. The theoretical and experimental analyses were carried out to study formation mechanism of highly aligned nanofibers using the modified bubble electrospinning. The results showed the modified bubble electrospinning could decrease the nanofiber diameter, enhance the diameter distribution, and improve the nanofiber alignment.

Needle’s vibration in needle-disk electrospinning process: Theoretical model and experimental verification

“…The comparison results is illustrated in Figure 5, suggesting a good agreement between the theoretical prediction of equation (18) and experimental data.…”

“…5,6 However, electrospinning, as the most popular method of manufacturing nanofiber, is limited by the low nanofiber productivity. [7][8][9] To overcome the shortcoming, many new technologies for mass-production of nanofibers were appeared in open literatures, for examples, the bubble electrospinning, [10][11][12][13][14][15][16][17] the bubbfil spinning, [18][19][20] the wire electrode electrospinning, 21 the bowl edge electrode electrospinning, 22 and the needle-disk electrospinning. 23 The needle-disk electrospinning includes a needle-disk, a solution vessel, a motor, a collector and a voltage supply.…”

Experimental verification of the fractional model for silver ion release from hollow fibers

“…The hollow fiber could be produced by various methods, the most advanced one is the bubble electrospinning. [3][4][5][6][7][8][9][10][11] In the paper, the Ag/PET hollow fiber was prepared by the silver mirror reaction with a pressure difference. 12 The silver particles, which are adhered to the inner wall of the fiber, are avoided to contact with skin directly.…”

Numerical approach to controlling a moving jet’s vibration in an electrospinning system: An auxiliary electrode and uniform electric field

“…In order to improve the output of electrospun nanofibers, quite a few methods for electrospinning have been developed, for example, the multi-needle electrospinning technology 17 and the bubble electrospinning. [18][19][20][21] The research of multi-needle electrospinning is mainly focused on the arrangement of needles, for example, Theron et al created a nine needle electrospinning setup and the nine needles could be electrospun steadily located with a pitch of 1 cm on a square of 4 cm 2 . 22 Tomaszewski and Szadkowski compared three types of multi-needle electrospinning heads and found that 10 spinning needles arranged in a circle with a diameter of 50 mm was the best arrangement in their system.…”