Preparation of polyurethane nanofibers by electrospinning

Zhuo, Haitao; Hu, Jinlian; Chen, Heng; Yeung, Lapyan

doi:10.1002/app.28067

Cited by 103 publications

(80 citation statements)

References 29 publications

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“…Various methods such as wet spun, melt spun, dry spun, and electrospun are used for the production of SMPU fiber [50][51][52][53].…”

Section: Textile Application Of Smpumentioning

confidence: 99%

Polyurethane: A Shape Memory Polymer (SMP)

Thakur¹,

Hu²

2017

Aspects of Polyurethanes

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Shape memory polymer (SMP) is a stimuli-responsive material with the ability to alter a programmed shape to its original shape upon triggering of an appropriate stimulus. For the past decades, SMP has dragged much interest in material field owing to its various and versatile applications. One archetypal SMP is polyurethane, which has a wideranging transition temperature for its shape recovery, retraction temperatures, inherent soft-hard segments, a high recoverable strain (up to 400%), high control of the softening, favorable and tunable physical properties, and so on. This chapter emphasizes on the raw materials required for the synthesis of shape memory polyurethane (SMPU), the principle of shape memory function, the design of protocol of SMPU, and their applications with future directions.

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“…Various methods such as wet spun, melt spun, dry spun, and electrospun are used for the production of SMPU fiber [50][51][52][53].…”

Section: Textile Application Of Smpumentioning

confidence: 99%

Polyurethane: A Shape Memory Polymer (SMP)

Thakur¹,

Hu²

2017

Aspects of Polyurethanes

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“…[19][20][21] Electrospun fibers have been investigated widely [22][23][24] for medical sensors and photonics, 25 41 Due to the high permeability of water vapor at high temperatures and considerably lower permeability capacity at lower temperatures, these polyurethanes are being coated onto various materials to produce breathable fabrics. 43 Biofilters packed with polyurethane foams inoculated with a mixed microbial population were used successfully to adsorb and degrade toluene.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Polyurethane Fibers for Absorption of Volatile Organic Compounds from Air

Scholten

Bromberg

Rutledge

et al. 2011

ACS Appl. Mater. Interfaces

129

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Electrospun polyurethane fibers for removal of volatile organic compounds (VOC) from air with rapid VOC absorption and desorption have been developed.Polyurethanes based on 4,4-methylenebis(phenylisocyanate) (MDI) and aliphatic isophorone diisocyanate as the hard segments and butanediol and tetramethylene glycol as the soft segments were electrospun from their solutions in N,N-dimethylformamide to form micron-sized fibers. Although activated carbon possessed a many-fold higher surface area than the polyurethane fiber meshes, the sorption capacity of the polyurethane fibers was found to be similar to that of activated carbon specifically designed for vapor adsorption. Furthermore, in contrast to VOC sorption on activated carbon, where complete regeneration of the adsorbent was not possible, the polyurethane fibers demonstrated a completely reversible absorption and desorption, with desorption obtained by a simple purging with nitrogen at room temperature. The fibers possessed a high affinity toward toluene and chloroform, but aliphatic hexane lacked the attractive interactions with the polyurethane chains and therefore was less strongly absorbed. The selectivity of the polyurethane fibers toward different vapors, along with the ease of regeneration, makes them attractive materials for VOC filtration.

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“…They used five PU/ DMF solutions (3.0, 5.0, 7.0, 10.0, and 12.0 wt%), did not observe jet formation in the PU/ DMF solutions above 12.0 wt% because of the higher viscosity, whereas in a too diluted solution (e.g., <3.0 wt%), the jet broke into droplets and they observed electrospraying instead of electrospinning. Finally, they concluded that uniform PU nanofibers could be produced by using 5.0-7.0 wt% of PU/DMF solutions, applied voltages of 10-15 kV, and feeding rates of 0.06-0.08 mm/min [38]. They also observed that increasing the applied voltage caused stickier fibers [38].…”

Section: Solution and Processing Conditions For Electrospun Pu Nanofimentioning

confidence: 97%

“…Finally, they concluded that uniform PU nanofibers could be produced by using 5.0-7.0 wt% of PU/DMF solutions, applied voltages of 10-15 kV, and feeding rates of 0.06-0.08 mm/min [38]. They also observed that increasing the applied voltage caused stickier fibers [38]. …”

Section: Solution and Processing Conditions For Electrospun Pu Nanofimentioning

confidence: 97%

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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 polyurethane nanofibers by electrospinning

Cited by 103 publications

References 29 publications

Polyurethane: A Shape Memory Polymer (SMP)

Polyurethane: A Shape Memory Polymer (SMP)

Electrospun Polyurethane Fibers for Absorption of Volatile Organic Compounds from Air

Electrospun Polyurethane Nanofibers

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