Free surface electrospinning: investigation of the combined effects of process parameters on the morphology of electrospun fibers

Nurwaha, Deogratias; Wang, Xinhou

doi:10.1007/s12221-015-0850-y

Cited by 10 publications

(7 citation statements)

References 18 publications

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“…Other methods do not use a traditional spinneret; in free surface electrospinning, a surface is coated in a thin layer of spin-dope, often by submerging it in a solution bath and then rotating it near the counter electrode. Most commonly, this is done with a spinning wire electrode [65][66][67][68] but similar results can be achieved using a rotating drum electrode [68], a splash electrode [69] and a spiral coil electrode [69]. Needle-disk electrospinning [70], or profile multi-pin electrospinning [71] coat surfaces that have been profiled, normally with pins, to control the size and location of Taylor cones.…”

Section: Feedmentioning

confidence: 99%

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Wen

Kok

Tafoya

et al. 2021

Journal of Energy Chemistry

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Section: Feedmentioning

confidence: 99%

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Wen

Kok

Tafoya

et al. 2021

Journal of Energy Chemistry

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“…Morphology and structure of the samples were characterized using SEM (Nova NanoSEM 450, FEI, 5 KV) and TEM (H‐7650, Hitachi, 80 KV). Fiber diameters were measured with digital images using software Image J according to the previous report . Diameters of each fiber in SEM images were measured, and the average fiber diameters along with the standard deviation values were then calculated.…”

Section: Methodsmentioning

confidence: 99%

Nanoparticle‐enhanced bamboo‐like tubular nanofibers for active capture of particulate matter

Luo

Zhao

et al. 2019

J. Polym. Sci. Part A: Polym. Chem.

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We proposed a thought of active capture of particles by improving the interaction force between fibers and particles. Nanoparticle-enhanced tubular nanofibers (Ag-SPNTs) were prepared by template-free cationic polymerization followed by surface modification. Ag-SPNTs have coarse surface and bamboo-like tubular structure with a diameter of approximately 80-150 nm. Ag nanoparticles were embedded on the nanofibers surface, and the content of Ag nanoparticles in the nanofibers could be tuned by changing the concentration of [Ag(NH 3 ) 2 ] + in the preparation process. f-d curve measured by AFM showed that increasing the content of Ag nanoparticles in the nanofibers resulted in the enhanced interaction force between the nanofiber surface and particles. Particle matter capture test showed that the number of captured microscaled/naonoscaled particles on the fiber surface increased obviously for the nanoparticleenhanced tubular nanofibers (Ag-SPNTs) compared to the nanofibers without nanoparticle (SPNTs), probably due to the increased interaction force and adhesion energy between fiber surface and particles. Filtration property test showed that the Ag-SPNTs fiber films had a better filtration performance with a higher filter efficiency and QF value than that of SPNTs.Additional supporting information may be found in the online version of this article. † These authors contributed equally to this work.

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“…As a result, there would be a reduction in local electric field on the surface of the wire and a greater angle for jets formation, so the jet attracted to the collector would be smaller [32]. It was also explained on other studies that this might happen because larger wire generated weaker electric field due to greater radius of the wire and also allowed the wire to accommodate more volume of the PVP solution [33,35]. Thus, less jets were formed which yielded fibers with enlarged diameter.…”

Section: Effect Of Process Parametersmentioning

confidence: 98%

“…The applied voltage affects the number of jets because it determines the strength of electric field that will influence the initiation process of jets [33]. It was explained by Forward et al (2012) in their study that droplets of PVP solution formed on the wire initially had a symmetrical 'barrel' shape before electric field was applied, as can be seen in figure 5(a).…”

Section: Effect Of Process Parametersmentioning

confidence: 99%

Needleless electrospinning system with wire spinneret: an alternative way to control morphology, size, and productivity of nanofibers

2020

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Electrospinning is a versatile method to produce nanofibers. Electrospun nanofibers have been extensively used in many industrial applications such as wound dressing, sensor, protective clothing, and filters. However, producing nanofibers efficiently through a single-needle electrospinning technique is still challenging. In this study, a system of needleless electrospinning with a wire spinneret was utilized to produce Polyvinylpyrrolidone (PVP) nanofibers. Process parameters comprised concentration of solution, applied voltage, flow rate of solution, collection distance, and diameter of the wire spinneret were altered to examine morphology, diameter, and productivity of the produced fibers. SEM images showed that morphology of the produced fibers was affected by concentration of PVP solution. Moreover, diameter of the produced fibers could be varied by controlling the process parameters. Our needleless electrospinning system has proved to be more productive in producing fibers than the single-needle electrospinning system.

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Free surface electrospinning: investigation of the combined effects of process parameters on the morphology of electrospun fibers

Cited by 10 publications

References 18 publications

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Nanoparticle‐enhanced bamboo‐like tubular nanofibers for active capture of particulate matter

Needleless electrospinning system with wire spinneret: an alternative way to control morphology, size, and productivity of nanofibers

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