Thermoplastic Polyurethane Ultrafine Fiber Web Fabricated by Laser Electrospinning

Takasaki, Midori; Sugihara, Kohsuke; Ohkoshi, Yutaka; Fujii, Tatsuzo; Shimizu, Hiroyasu; Saito, Masaharu

doi:10.2115/fiber.66.168

Cited by 10 publications

(22 citation statements)

References 14 publications

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“…2-6 of Table 1). This trend agrees with the results of previously reported TPU fibers [12]. On the other hands, by comparing for the same applied voltage and laser power (Nos.…”

Section: Measurement Of Molecular Weightsupporting

confidence: 93%

“…The laser beam width was also varied by applying an alumina slit. The laser beam width parallel to the fiber-running direction (2r ), measured by the previously reported method [12], was 0.9 mm with the slit and 2.3 mm without the slit. Because the laser beam perpendicular to the fiber-running direction (2r ), 7.3 mm with the slit and 24 mm without the slit, were far larger than the fiber diameter, laser irradiation density can be considered constant.…”

Section: Laser-heated Electrospinningmentioning

confidence: 99%

“…The LES apparatus used in this study consisted of a CO2 laser system (PIN-30R, Onizuka Glass Co., Ltd.) and an electrospinning system (NEU-010, Katotech Co., Ltd.) [12]. The PLA fiber was fed by a feed roller at a rate of 40 mm/min.…”

Section: Laser-heated Electrospinningmentioning

confidence: 99%

“…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. In fact, we have found that more fine and uniform thermoplastic polyurethane (TPU) fiber was obtained because the fiber temperature rose sharply and the fiber thinned rapidly when using a thinner laser beam width [12].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2015

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“…2-6 of Table 1). This trend agrees with the results of previously reported TPU fibers [12]. On the other hands, by comparing for the same applied voltage and laser power (Nos.…”

Section: Measurement Of Molecular Weightsupporting

confidence: 93%

Section: Laser-heated Electrospinningmentioning

confidence: 99%

Section: Laser-heated Electrospinningmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2015

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“…A narrower laser beam reduced the variation in the fiber diameters. A PU microfiber with an average diameter of 2.4 μm and a coefficient of variation of 8% was obtained using a 0.9 mm wide laser beam [63].…”

Section: Aspects Of Polyurethanesmentioning

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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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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Thermoplastic Polyurethane Ultrafine Fiber Web Fabricated by Laser Electrospinning

Cited by 10 publications

References 14 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

Electrospun Polyurethane Nanofibers

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

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