Numerical analysis of the electrospinning process for fabrication of composite fibers

Abstract

An electrospun composite fiber process is a multi-phase and multi-physics process. It was very difficult to study a charged jet in the electrospinning process for the fabrication of composite fibers by experiments. In this study, the liquid-solid two-phase flow in the electrospinning process for fabrication of composite fibers was researched numerically. The results showed the addition of conductive nanoparticles resulted in the increase of the jet flow velocity, and the decrease of the fiber?s diameter. The CFD results corresponded well with the experimental data.

Preparation of a Cu-BTC/PAN electrospun film with a good air filtration performance

“…In line with the peak position in Ref. [30], the peak shape of XRD is sharp, indicating that the synthesized Cu-BTC crystal structure is good. The Cu-BTC prepared by the hydrothermal method did not show the impurity peak of 2θ=11.0° reported in the XRD spectrum [38], indicating that the synthesis temperature was suitable and no CuO impurity was generated.…”

“…In recent years, nanofibers prepared by electrospinning have been widely used. The modified nanofibers prepared by combining with organometallic framework materials have excellent properties [29][30][31][32][33][34]. The Cu-BTC/PVA film was prepared by electrospinning with the addition of Cu-BTC particles in PVA solution.…”

Mechanism study of highly ordered jets in an improved electrospinning process

“…The experimental data were in keeping with the theoretical analysis results, and illustrated the IPEM could enhance the ordered degrees of electrospun nanofibers, and the addition of two rings with the optimal distance between them of 6 cm could further improve the ordered degree of nanofibers compared with the addition of one ring, which could achieve a ordered degree of 82%. The IPEM method can be extended to other modifications of electrospinning [25][26][27][28][29][30][31][32].…”

Fabrication of PVDF/PES nanofibers with unsmooth fractal surfaces by electrospinning: A general strategy and formation mechanism

“…It becomes a trend to improve specific surface area in many areas, such as nanotechnology, material science, chemistry, tissue engineering, energy science and textile engineering. A higher specific surface area means a higher surface energy (surface potential), which can result in more fascinating properties and more attractive applications [1][2][3][4][5][6][7][8].…”