Mechanical behavior of electrospun fiber mats of poly(vinyl chloride)/polyurethane polyblends

Lee, Keun Hyung; Kim, Hee Young; Ryu, Young Jun; Kim, Kwan Woo; Choi, Sun Woong

doi:10.1002/polb.10482

Cited by 199 publications

(141 citation statements)

References 16 publications

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“…[1][2][3][4] The relative ease of modulating fiber architecture provides a means to control scaffold properties. For example, fiber alignment and fiber diameter have been shown to influence mechanical properties, [5][6][7][8] degradation rate, 9,10 and cell growth. [10][11][12][13][14][15] Thus, electrospun scaffold properties can be tailored to meet the specific design criteria of a wide range of tissues.…”

Section: Introductionmentioning

confidence: 99%

Effects of Humidity and Solution Viscosity on Electrospun Fiber Morphology

Nezarati

Eifert²,

Cosgriff‐Hernandez³

2013

Tissue Engineering Part C: Methods

342

210

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Electrospinning is a popular technique to fabricate tissue engineering scaffolds due to the exceptional tunability of fiber morphology that can be used to control scaffold mechanical properties, degradation rate, and cell behavior. Although the effects of modulating processing or solution parameters on fiber morphology have been extensively studied, there remains limited understanding of the impact of environmental parameters such as humidity. To address this gap, three polymers (poly(ethylene glycol) [PEG], polycaprolactone [PCL], and poly(carbonate urethane) [PCU]) were electrospun at a range of relative humidities (RH = 5%-75%) and the resulting fiber architecture characterized with scanning electron microscopy. Low relative humidity ( < 50%) resulted in fiber breakage for all three polymers due to decreased electrostatic discharge from the jet. At high relative humidity ( > 50%), three distinct effects were observed based on individual polymer properties. An increase in fiber breakage and loss of fiber morphology occurred in the PEG system as a result of increased water absorption at high relative humidity. In contrast, surface pores on PCL fibers were observed and hypothesized to have formed via vapor-induced phase separation. Finally, decreased PCU fiber collection occurred at high humidity likely due to increased electrostatic discharge. These findings highlight that the effects of relative humidity on electrospun fiber morphology are dependent on polymer hydrophobicity, solvent miscibility with water, and solvent volatility. An additional study was conducted to highlight that small changes in molecular weight can strongly influence solution viscosity and resulting fiber morphology. We propose that solution viscosity rather than concentration is a more useful parameter to report in electrospinning methodology to enable reproduction of findings. In summary, this study further elucidates key mechanisms in electrospun fiber formation that can be utilized to fabricate tissue engineering scaffolds with tunable and reproducible properties.

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Section: Introductionmentioning

confidence: 99%

Effects of Humidity and Solution Viscosity on Electrospun Fiber Morphology

Nezarati

Eifert²,

Cosgriff‐Hernandez³

2013

Tissue Engineering Part C: Methods

342

210

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“…For example, it was difficult for most of the natural polymers to be electrospun; however, addition of a synthetic polymer could improve the Electrospun Polyurethane Nanofibers http://dx.doi.org/10.5772/intechopen.69937processability of these polymers [82]. PUs are easy to electrospin and they can be mixed either with a natural polymer or with a synthetic polymer [83,84,87] for special applications such as collagen [88], dextran [43], and hydroxypropyl cellulose (HPC) [41].…”

Section: Electrospinning Of Pu/blends and Pu Nanocomposite Nanofibersmentioning

confidence: 99%

“…The authors offered a new perspective for the preparation of micro and nanofibers by using aqueous dispersions for the preparation of water-insoluble PU fibers by electrospinning. Lee et al [84] dissolved various polyblends of poly(vinyl chloride) and PU (Pellethane 2363-80AE) in a mixture of THF and DMF. They produced nanofibers in different ratios, with several electrospinning conditions and investigated the relationship between morphology and mechanical behavior of the resulting fiber mats.…”

Section: Electrospinning Of Pu/blends and Pu Nanocomposite Nanofibersmentioning

confidence: 99%

Electrospun Polyurethane Nanofibers

Akduman¹,

Kumbasar²

2017

Aspects of Polyurethanes

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The electrospinning process is highlighted with the ability of fabricating fibers with diameters on the nanometer scale, small inter-fibrous pore size and high porosity, vast possibilities for functionalization with high surface area to volume or mass ratio, ease of use and instrument setup, and adaptability. It attracted a great deal of attention due to its unique properties. More than 100 different polymers have been successfully electrospun into ultrafine fibers using this technique including synthetic polymers such as polyurethane (PU). Electrospun PU nanofiber mats exhibiting good mechanical properties may have a wide variety of potential applications in high-performance air filters, protective textiles, wound dressing materials, sensors, drug delivery, etc. This chapter deals with the electrospinning of polyurethane nanofibers and their potential applications.

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“…Electrospun nanofibers have been reported as being from various synthetic polymers, and natural polymers were electrospun from polymer solutions, such as poly(vinyl chloride) [28], poly(ethylene-covinyl alcohol) [29], polycarbonates [30], nylon-6 [31], polyurethane [32], polyacrylonitrile [33] polylactide [34], and poly(ε-caprolactone) [35].…”

Section: Fabrication Of Polymer Nanofibersmentioning

confidence: 99%

Fabrication and Properties of Rubber Nanofiber from Electrospinning

Taweepreda¹

2017

Elastomers

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Electrospun nanofibers of rubber blending with poly(vinyl chloride) (PVC) were prepared by electrospinning. Various concentrations of rubber solution were added to the PVC solution for several purposes of the electrospun nanofibers. The pristine and rubber plasticized nanofibers were characterized by field emission scanning electron microscopy (FE-SEM), differential thermal analysis (DTA), and thermogravimetry analysis (TGA), respectively. Thermal properties from DTA and TGA results indicated that the addition of rubber decreased glass transition temperature (T g ) of PVC and increased heat resistance of PVC nanofiber. The dielectric constant of plasticized nanofibers measured using precision LCR meter indicated that the membranes were dense.

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Mechanical behavior of electrospun fiber mats of poly(vinyl chloride)/polyurethane polyblends

Cited by 199 publications

References 16 publications

Effects of Humidity and Solution Viscosity on Electrospun Fiber Morphology

Effects of Humidity and Solution Viscosity on Electrospun Fiber Morphology

Electrospun Polyurethane Nanofibers

Fabrication and Properties of Rubber Nanofiber from Electrospinning

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