Well‐aligned Nano‐fiberous Membranes Based on Three‐pole Electrospinning with Channel Electrode

Jafari, Akbar; Jeon, Jin-Han; Oh, Il‐Kwon

doi:10.1002/marc.201100101

Cited by 18 publications

(8 citation statements)

References 33 publications

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“…This approach often allows a limited sample thickness to be reached,33b which can be a drawback for continuous operation runs. Jafari et al79 have proposed a potentially scalable method consisting of a three‐pole configuration with a blade‐cage collector set exhibiting an accurate control over the fibers diameters and alignment degree. This approach takes advantage of the combination of different factors, such as (i) a sharp electrode provided by the blade, (ii) parallel electrodes realized by parallel cage frames, and (iii) absence of a circumferential surface on the drum, in addition to the usual dynamic effect provided by the collector rotation, and may have good potential for industrial production.…”

Section: Electrospinning Production Technologiesmentioning

confidence: 99%

Industrial Upscaling of Electrospinning and Applications of Polymer Nanofibers: A Review

Persano

Camposeo

Tekmen

et al. 2013

Macro Materials & Eng

823

568

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Electrospun nanofibers are extensively studied and their potential applications are largely demonstrated. Today, electrospinning equipment and technological solutions, and electrospun materials are rapidly moving to commercialization. Dedicated companies supply laboratory and industrial‐scale components and apparatus for electrospinning, and others commercialize electrospun products. This paper focuses on relevant technological approaches developed by research, which show perspectives for scaling‐up and for fulfilling requirements of industrial production in terms of throughput, accuracy, and functionality of the realized nanofibers. A critical analysis is provided about technological weakness and strength points in combination with expected challenges from the market. magnified image

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Section: Electrospinning Production Technologiesmentioning

confidence: 99%

Industrial Upscaling of Electrospinning and Applications of Polymer Nanofibers: A Review

Persano

Camposeo

Tekmen

et al. 2013

Macro Materials & Eng

823

568

View full text Add to dashboard Cite

show abstract

“…For common tablet receivers, the fibers in the nanofiber network are distributed in a disordered arrangement, and the irregular structure and the resulting low mechanical performance significantly limits the application of these nanofiber mats [8][9][10]. In order to prepare nanofiber mats with mechanical performance conforming to the application requirements, various receiving devices for the electrostatic spinning method have been designed by several researchers [11][12][13]. Compared to these receiving devices, high-speed rotating drums provide simpler and a more effective approach to produce nanofiber mats with the required orientation distribution and mechanical performance [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Distribution of Fiber Orientation on the Mechanical Properties of Silk Fibroin/Polycaprolactone Nanofiber Mats

Yin

Xiong

2017

Journal of Engineered Fibers and Fabrics

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In this study, Silk Fibroin (SF)/Polycaprolactone (PCL) composite nanofiber mats were fabricated using an electrostatic spinning technology employing different drum rotation speeds. The morphology and tensile performance of the resulting nanofiber mats were characterized using thermal field emission scanning electron microscopy, multi-layer image fusion technology, pore size distribution analysis and uniaxial and biaxial tensile tests. The analytical results showed that the drum rotation speed had little effect on the diameter of the nanofibers, but it did effect the physical orientation of the nanofibers. When the drum rotating speed was lower than 2.38 m s −1 , the nanofibers were randomly distributed, and there was no obvious mechanical anisotropy in the fiber mats. However, when the rotation speed was as high as 11.88 m s −1 , the nanofibers were fully uniaxially oriented, which provided high mechanical anisotropy to the fiber mats. The distribution of the size of the aperture of the nanofiber mats was related to the distribution in the fiber orientation. If the degree of orientation of the fibrous layer was high, the variation in the individual fibers was low and the pore diameter of fibrous mats was smaller as a result of the centralized fiber distribution. In the case of the SF/PCL composite nanofiber mats fabricated with different drum rotation speeds, the variation in the mechanical performance of the resulting mat in biaxial tension was consistent with its performance in uniaxial tension; however, it was found that the fracture mechanism of fiber mats varied in biaxial tension and uniaxial tension.

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“…Methods that diminish jet instabilities by introducing auxiliary electrodes with various shapes achieve that by manipulating the external electric field to control the fiber path and the deposition area of the electrospun fibers [21][22][23][24][25][26]. Another effective method to facilitate fiber alignment uses counter electrodes [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Electrospinning of aligned fibers with adjustable orientation using auxiliary electrodes

Arras

Grasl

Bergmeister

et al. 2012

Science and Technology of Advanced Materials

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A conventional electrospinning setup was upgraded by two turnable plate-like auxiliary high-voltage electrodes that allowed aligned fiber deposition in adjustable directions. Fiber morphology was analyzed by scanning electron microscopy and attenuated total reflection Fourier transform infrared spectroscopy (FTIR-ATR). The auxiliary electric field constrained the jet bending instability and the fiber deposition became controllable. At target speeds of 0.9 m s −1 90% of the fibers had aligned within 2 • , whereas the angular spread was 70• without the use of auxiliary electrodes. It was even possible to orient fibers perpendicular to the rotational direction of the target. The fiber diameter became smaller and its distribution narrower, while according to the FTIR-ATR measurement the molecular orientation of the polymer was unaltered. This study comprehensively documents the feasibility of directed fiber deposition and offers an easy upgrade to existing electrospinning setups.

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Well‐aligned Nano‐fiberous Membranes Based on Three‐pole Electrospinning with Channel Electrode

Cited by 18 publications

References 33 publications

Industrial Upscaling of Electrospinning and Applications of Polymer Nanofibers: A Review

Industrial Upscaling of Electrospinning and Applications of Polymer Nanofibers: A Review

Effect of the Distribution of Fiber Orientation on the Mechanical Properties of Silk Fibroin/Polycaprolactone Nanofiber Mats

Electrospinning of aligned fibers with adjustable orientation using auxiliary electrodes

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