The Effect of Applied Voltage and Laser Power on the Molecular Orientation of Laser-Electrospun Poly(ethylene terephthalate) Fibers

Nakata, Kazuhiro; Kinugawa, Shinya; Takasaki, Midori; Ohkoshi, Yutaka; Gotoh, Yasuo; Nagura, Masanobu

doi:10.2115/fiber.65.257

Cited by 12 publications

(14 citation statements)

References 8 publications

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“…Ogata et al revealed that the diameter of electrospun poly(L-lactide) fiber of less than 1 µm was achieved, while the fiber molecular weight decreased exponentially with an increase in the laser power [5]. We have also carried out LES using various polymers, and investigated the dependence of LES conditions (applied voltage, laser power, and laser beam width) on the fiber diameter [10][11][12][13]. In particular, when the laser beam width is thinner, suppression of thermal degradation and stabilization of elongational deformation is expected because the heating duration becomes shorter.…”

Section: Introductionmentioning

confidence: 99%

Effects of Laser Beam Width on the Diameter and Molecular Weight of Laser‐Electrospun Polylactide Fiber

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Effects of Laser Beam Width on the Diameter and Molecular Weight of Laser‐Electrospun Polylactide Fiber

et al. 2015

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“…Electrospinning, which is a spinning method used to form nonwoven from submicron‐ and nanofibers, has been actively investigated . The electrospinning method is classified into solution and melt electrospinning.…”

Section: Introductionmentioning

confidence: 99%

“…Laser‐heated electrospinning (LES), which uses a CO 2 laser to heat the polymer, has also been reported . The elongational deformation of a molten polymer in a spin line generally tends to be unstable when the polymer is drawn with heating , so that a shorter heating time is preferred in the spin line.…”

Section: Introductionmentioning

confidence: 99%

Preparation of ultrafine polyurethane fiber web by laser-electrospinning combined with air blowing

et al. 2013

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Thermoplastic polyurethane fiber webs were prepared using a laser‐heated electrospinning process combined with air blowing. The effect of spinning conditions such as air flow rate and air temperature on fiber diameter and molecular weight was investigated. Although the average fiber diameter decreased with increased air flow rate at each air temperature, the diameter increased when the air flow rate was >15 NL min−1. In addition, the fiber was comparatively thicker with an increase in the air temperature. The variation in the fiber diameter tends to increase with the air flow rate, and a reduction in the molecular weight of the fiber by thermal degradation was suppressed. The thinnest and most uniform fiber with a diameter of 0.9 µm and a diameter coefficient variation of 15% was obtained at an air temperature of 25°C under an air flow rate of 15 NL min−1. This fiber also had a minimum of decreased molecular weight. POLYM. ENG. SCI., 54:2605–2609, 2014. © 2013 Society of Plastics Engineers

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“…A melt‐electrospinning system equipped with a CO 2 ‐laser melting device has been devised due to heating the polymers tip rapidly and minimizing the thermo‐degradation of polymers. At the same time, diverse kinds of polymers have been successfully prepared by using this system in recent years .…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of TPU micro/nanofibers by a laser melt-electrospinning system

Wang

et al. 2013

Polym Eng Sci

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Laser melt electrospinning is a novel technology to fabricate scaffolds in the tissue engineering applications. The melt electrospinning is much safer than the conventional solution electrospinning due to without solvent effect. In this study, thermoplastic polyurethane (TPU) micro/nanofibers were successfully prepared by using this method. The effects of laser current and applied voltage on the fibers morphologies were investigated by scanning electron microscopy. The thermal behaviors and crystallization conditions of the TPU under different states were demonstrated by differential scanning calorimetry and X-ray diffraction analysis. The mechanical property and the specific surface area of the TPU fibers membranes were also studied. All the analysis results showed that the effects of laser current and applied voltage on the average fiber diameter were complicated, the average fiber diameter ranging from 1.70 to 2.53 mm; the TPU is not an easily crystallized material; the electrospun fibers exhibited an amorphous phase; the average elongation at break laser of the electrospun TPU fiber membranes is about 134%; the average tensile strength is about 1.02 MPa and the specific surface area of the electrospun TPU fiber membrane is about 199 m 2

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The Effect of Applied Voltage and Laser Power on the Molecular Orientation of Laser-Electrospun Poly(ethylene terephthalate) Fibers

Cited by 12 publications

References 8 publications

Effects of Laser Beam Width on the Diameter and Molecular Weight of Laser‐Electrospun Polylactide Fiber

Effects of Laser Beam Width on the Diameter and Molecular Weight of Laser‐Electrospun Polylactide Fiber

Preparation of ultrafine polyurethane fiber web by laser-electrospinning combined with air blowing

Preparation and properties of TPU micro/nanofibers by a laser melt-electrospinning system

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