A comprehensive electric field analysis of cylinder-type multi-nozzle electrospinning system for mass production of nanofibers

Kim, In Gi; Lee, Jung-Ho; Unnithan, Afeesh Rajan; Park, Chan Hee; Kim, Cheol Sang

doi:10.1016/j.jiec.2015.06.033

Cited by 52 publications

(32 citation statements)

References 26 publications

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“…A double-row spinneret system was illustrated in fig.1. The double-row structure is conventionally used in the multi-needle electrospinning [22,25,27]. Figure 2 showed the distribution of electric field intensity in the surface of needle tips, the electric field intensity of the needle tips was calculated and drawn in fig.…”

Section: Simulation Results and Analysismentioning

confidence: 99%

“…Besides, the needle length, the applied voltage and the needle spacing might affect the uniformity of the electric field intensity. Kim et al [22] designed a cylinder-type multi-needle electrospinning system for mass production of nanofibers in 2015. In this study, a new circular spinneret multi-needle electrospinning system is put forward.…”

Section: Introductionmentioning

confidence: 99%

“…The electric field distribution of electrostatic spinning spinneret influences the formation and movement of jets [23]. During the spinning process, the electric field distribution will cause an obvious phenomenon which is the end effect, and it is difficult to control the electric field [22,[24][25][26]. In this paper, the finite element method is used to simulate the electric field of the electrospinning spinneret.…”

Section: Introductionmentioning

confidence: 99%

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A new circular spinneret system for electrospinning numerical approach and electric field optimization

Zhu

Wang

et al. 2019

THERM SCI

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Electrospinning is believed to be the most effective technique to produce microfibers or nanofibers at large scale, which can be applied in various high-tech areas, including energy harvester, tissue engineering, and wearable sensors. To enhance nanofiber throughput during a multi-needle electrospinning process, it is an effective way to keep the electric field uniform by optimizing electrospinning spinnerets. For this purpose, a novel circular spinneret system is designed and optimized numerically by a 3-D finite element model, the optimal collector shape is also obtained.

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Section: Simulation Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new circular spinneret system for electrospinning numerical approach and electric field optimization

Zhu

Wang

et al. 2019

THERM SCI

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“…Since nanofibers are electrospun from each needle, the production rate of nanofibers increases linearly as the number of needles increases. Further increasing the number of needles on a rectangular or circular array has also been practiced [95][96][97][98]. However, to ensure the homogeneity of nanofibers drawn from different needles, the density of needles in the spinneret is strictly limited.…”

Section: Scale-up Of Electrospun Nanofibersmentioning

confidence: 99%

Functional Nanofibers with Multiscale Structure by Electrospinning

et al. 2018

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diameters, compositions and orientations. In addition, the flexibility of electrospinning allows for controlling the structure (e.g. hollow fibers) and arrangement (e.g. well-ordered fiber arrays) of the fibers so that nanofibers of desired properties can be fabricated depending on the intended applications.The diameters of electrospun fibers can be easily varied from tens of nanometers to microns, and thus the fibers possess extremely high surface-to-volume ratio, making them suitable for activities requiring a high degree of physical contact, such as providing sites for chemical reactions. Membranes consisted of electrospun fibers possess relatively uniform pore size distribution and significantly high porosity and thus are good filter to capture small-sized particulates by physical entrapment [22,23,[27][28][29]. In addition, the nanofibers fabricated by electrospinning possess a relatively defect-free structure at the molecular scale, showing enhanced mechanical properties. Because of these advantages, electrospun fibers have been widely used in various applications. For example, in biomedical applications, by using biocompatible materials, electrospun fibrous scaffold have been considered as suitable substrates for tissue engineering [13][14][15][16] and artificial blood vessels [18], and also used to study the differentiation of stem cell [24]. While in the field of electromechanics, various sensors, such as tactile sensors [8,9], chemical sensors [3,5,6,10,11,17,19] and optical sensors [12], are using electrospun fibers as substrates or sensing elements.In this review, we provide an overview of electrospinning technologies, which have been developed to prepare nanofibers of different materials, ranging from inorganic ceramics to organic polymers, and systematically summarize the techniques to adjust the system parameters and thus tailor the properties of the fibers, including the fiber diameter and its surface morphology. We also highlight the advance of electrospinning techniques in creating complex structures with desired properties, such as well-aligned fiber arrays and specifically patterned fiber structure on the collector. Construction of nanofibers with more complex internal structure, such as corehttps://doi.org/10.1515/nanofab-2018-0002Received December 21, 2017; accepted March 19, 2018 Abstract: Electrospinning can produce nanofibers with extremely high surface-to-volume ratio and well tunable properties. The technique has been widely used in different disciplines. To fabricate fibers with required properties, parameters of fabrication should be well controlled and adjusted according to specific applications. Modification of electrospinning devices to align fibers in highly ordered architectures could improve their functions. Enhanced efficiency have also been obtained through the upscaling modification of spinnerets. With the outstanding efficiency, electrospinning has exhibited huge potentials to construct various nanostructures, such as artificial vessel, membrane for desalination and so on.

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“…Krishnamoorthy et al [11] demonstrated an ES setup consisting of 24 (8×3) nozzles for the large-scale production of aligned ceramic nanofibers. And Kim et al [12] developed an upward high-speed cylinder-type ES system with 120 needles in each cylinder to obtain the mass production of nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Four self-made free surface electrospinning devices for high-throughput preparation of quality nanofibers

Fang¹,

Xu²

2019

Preprint

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Four different self-made free surface electrospinning (FSE) devices, namely, modified bubble-electorspinning (MBE) device, modified free surface electorspinning (MFSE) device, oblique section free surface electorspinning (OSFSE) device and spherical section free surface electrospinning (SSFSE) device, were presented to obtain high-throughput preparation of high quality nanofibers in this paper. The preparation mechanisms of these four FSE device were studied by simulating the electric field distribution using Maxwell 3D, due to the importance of electric field in the FSE process. And the effects of them on the morphology and yield of nanofibers were investigated by experiments. The experimental data agreed with the simulation results of electric field, and showed these four FSE device all could be used to prepare high quality nanofibers in large quantities. Meanwhile, comparing the spinning effects of these four FSE device, the results illustrated the SSFSE device was the optimal FSE device because of the highest quality and yield of nanofibers, and its yield could reach 20.03 g/h at the applied voltage of 40 kV.

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A comprehensive electric field analysis of cylinder-type multi-nozzle electrospinning system for mass production of nanofibers

Cited by 52 publications

References 26 publications

A new circular spinneret system for electrospinning numerical approach and electric field optimization

A new circular spinneret system for electrospinning numerical approach and electric field optimization

Functional Nanofibers with Multiscale Structure by Electrospinning

Four self-made free surface electrospinning devices for high-throughput preparation of quality nanofibers

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