Rapid and efficient fabrication of multilevel structured silica micro-/nanofibers by centrifugal jet spinning

Ren, Liyun; Ozisik, Rahmi; Kotha, Shiva P.

doi:10.1016/j.jcis.2014.03.039

Cited by 53 publications

(31 citation statements)

References 45 publications

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“…The principle behind the CJS process requires some basic knowledge of polymer chemistry, processing, and fluid mechanics [3,8,12,13]. Relatively few publications have studied the effect of these various parameters involved, and Figure 1 depicts the complex relationship between these parameters [3,5,6,[12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Using Dimensionless Numbers to Predict Centrifugal Jet-Spun Nanofiber Morphology

Ravishankar

Khang

Laredo

et al. 2019

Journal of Nanomaterials

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In this study, we report a method for predictive, controlled, and highly aligned nanofiber production via Centrifugal Jet Spinning (CJS) using polycaprolactone (PCL) as a model polymer. We investigated the effects of fabrication conditions and their resulting dimensionless parameters, namely the Weber, Reynolds, and Capillary numbers, by correlating with fiber morphologies (fiber diameter, fiber alignment, bead frequency, bead aspect ratio, and scaffold porosity) and mechanical properties (linear modulus and ultimate tensile strength). We report a fabrication parameter lookup table based on the aforementioned dimensionless numbers, for the production of nanofiber scaffolds using the CJS. We built a scaled-up version of the CJS that uses a larger reservoir and successfully validated the reported lookup table for PCL as well as other polymers including polyethylene oxide, polylactic acid, and polyvinylpyrrolidone dissolved either in hexafluoroisopropanol or chloroform. We show that by carefully tailoring the polymer intrinsic properties and the Reynolds number, we can fabricate bead-free, continuous fibers. This method will allow other researchers to design and build their own CJS for the production of desired fiber scaffold networks by utilizing the appropriate dimensionless numbers for their system.

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Section: Introductionmentioning

confidence: 99%

“…Schematic of the complex relationship between the ambient conditions (blue), polymer solution characteristics (green), process parameters (purple), and other underlying dependent variables (red) on scaffold characteristics (black) developed based on a review of published literature[3,5,6,[12][13][14][15][16][17].…”

mentioning

confidence: 99%

Using Dimensionless Numbers to Predict Centrifugal Jet-Spun Nanofiber Morphology

Ravishankar

Khang

Laredo

et al. 2019

Journal of Nanomaterials

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“…Many methods have been developed to prepare nanobers, including electrospinning, [10][11][12][13] polymerization, melt blowing, cold drawing, centrifugal force spinning, [14][15][16][17][18] phase separation [19][20][21] and melt blending extrusion. [22][23][24] Most polymer resins used for this purpose are thermoplastic polyolens or polyesters, which can be melted and reprocessed.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic nanofibrous composite membrane prepared by melt-blending extrusion for effective separation of oil/water emulsion

Zheng

Xiao

2017

RSC Adv.

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“…Ceramic micro-and nanofibers are increasingly studied as a material suitable for the fabrication of porous ceramic structures for demanding applications [6][7][8][9][10][11]. Most of the nanofibrous ceramic materials are currently produced from precursor fibers made by electrospinning methods [12][13][14][15] that can provide a high level of control of the fiber dimensions, shape, structure and composition. Alumina (Al 2 O 3 )-based nanofibers have been of considerable interest due to their mechanical strength, chemical and thermal properties [16,17], and a possibility of the fabrication of stable self-supported fibrous membranes [18].…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous alumina structures fabricated using high-yield alternating current electrospinning

Stanishevsky¹,

Brayer²,

Pokorný³

et al. 2016

Ceramics International

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Nanofibrous alumina (Al 2 O 3) structures were fabricated from the precursor aluminum nitrate/polyvinylpyrrolidone (PVP) nanofibers prepared using a free-surface alternating current (AC) electrospinning method. Precursor nanofibers were generated at rates up to 6.4 g/h and collected as 100-300 m thick sheets suitable for direct conversion into the nanofibrous alumina structures. The effects of process conditions and annealing temperature on the nanofiber diameter, morphology, shrinking behavior and crystalline phase formation were investigated by Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR) spectroscopy, and Xray diffraction (XRD). Textural properties of Al 2 O 3 fibrous sheets composed of micro-/mesoporous nanocrystalline -alumina nanofibers with 260±90 nm diameters after the calcination at temperatures in the range from 700 o C to 1000 o C were determined from N 2 adsorption/desorption isotherms. Preliminary air permeability and apparent air flow resistance

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Rapid and efficient fabrication of multilevel structured silica micro-/nanofibers by centrifugal jet spinning

Cited by 53 publications

References 45 publications

Using Dimensionless Numbers to Predict Centrifugal Jet-Spun Nanofiber Morphology

Using Dimensionless Numbers to Predict Centrifugal Jet-Spun Nanofiber Morphology

Hydrophilic nanofibrous composite membrane prepared by melt-blending extrusion for effective separation of oil/water emulsion

Nanofibrous alumina structures fabricated using high-yield alternating current electrospinning

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