Fabrication of polyurethane and thermoplastic polyurethane nanofiber by controlling the electrospinning parameters

Abdoluosefi, Homeira Emad; Honarasa, Gholamreza

doi:10.1088/2053-1591/aa9191

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…When the concentration of spinning solution continues to increase, the space of molecular chain extension is compressed, some molecular chains are not extended and are in a curly state, and serious entanglement results in reduced fluidity of spinning solution. The spinneret hole is blocked, and eventually, no jet can be formed . Therefore, the fibers with a spinning solution concentration of 22 wt % are finally selected as the research object of the subsequent experiment, considering the spinnability and microscopic morphology of TPU/T-ZIF-8 fibers.…”

Section: Resultsmentioning

confidence: 99%

“…The spinneret hole is blocked, and eventually, no jet can be formed. 24 Therefore, the fibers with a spinning solution concentration of 22 wt % are finally selected as the research object of the subsequent experiment, considering the spinnability and microscopic morphology of TPU/T-ZIF-8 fibers. To investigate the diameter and distribution of TPU/T-ZIF-8 fibers, the software Nano Measurer was used to measure the average diameter of TPU/T-ZIF-8 fibers with a spinning solution concentration of 22 wt %, and the distribution histogram and diameter of the fibers are as shown in Figure 4g and Table S1.…”

Section: Morphology Control Of Tpu/t-zif-8 Photocatalytic Antibacteri...mentioning

confidence: 99%

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Polyurethane-Based T-ZIF-8 Nanofibers as Photocatalytic Antibacterial Materials

Zhang,

Qiao,

Pei

et al. 2023

ACS Appl. Nano Mater.

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Much attention has been paid to compound a ZIF-8 antibacterial agent with textiles for recycling. However, antibacterial inactivation may be caused by dissolution of the ZIF-8 antibacterial agent in postfinishing technology. In this work, a nondissolutionbonded T-ZIF-8-PEG-TPU photocatalyst was prepared by covalent immobilization, and then, bonded antibacterial fibers T-ZIF-8-PEG-TPU were fabricated by electrospinning technology. The microstructure of the fibers was regulated by optimizing the spinning solution concentration, PEG content, and conductive salt content. The optimum process parameters are 22 wt % spinning solution, 3.3 wt % PEG, and 0.5 wt % ZnCl 2 conductive salt. The intrinsic relationship between the fiber microstructure and photocatalytic antibacterial property, moisture permeability, and hydrophobicity was investigated. The antibacterial rate of the fiber membrane against Staphylococcus aureus reaches 100% after 30 min of visible light irradiation, and the antibacterial rate of Escherichia coli is 99.6% after visible light irradiation for 120 min. The fiber membrane has a standard grade I moisture permeability rate and a certain waterproof effect. It has potential applications in the field of health protection such as medical dressings and medical protective products.

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Section: Resultsmentioning

confidence: 99%

Section: Morphology Control Of Tpu/t-zif-8 Photocatalytic Antibacteri...mentioning

confidence: 99%

Polyurethane-Based T-ZIF-8 Nanofibers as Photocatalytic Antibacterial Materials

Zhang,

Qiao,

Pei

et al. 2023

ACS Appl. Nano Mater.

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“…However, electrospinning stands out as a particularly promising technique due to its numerous advantages, such as versatility, ease of use, flexibility, cost-effectiveness, and the ability to produce nanofibers with small dimensions (Emad Abdoluosefi & Honarasa et al, 2017). Electrospinning is a fantastic method for producing nanofibers.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have investigated the production of polyurethane (PU) nanofibers through electrospinning. For instance, Karakaş et al, (2018), Demir et al (2002), Yang et al (2010), B. Li et al (2020, Firoozi et al (2016), Kiliç et al (2018), Choi et al (2014), Emad Abdoluosefi andHonarasa. (2017), Hu et al (2021), Öteyaka et al (2022), Banuškevičiute et al (2011), Zhuo et al (2008), and Rabbi et al (2012 have given significant information on influential factors impacting nanofiber morphology and underlined the necessity of carefully regulating parameters in the electrospinning process to generate uniform PU nanofibers without beads and desirable nanofiber diameters.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Impact of Different Parameters on the Morphology of Electrospun Polyurethane Nanofibers

Sabri,

Mahammed

2024

SJUOZ

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In this research, nonwoven nanofiber mats were prepared using the electrospinning method for the solution of polyurethane polymer dissolved in acetic acid. Effects of solution concentration, solution flow rate, as well as high voltage on the morphonology and wettability of the prepared nanofibers were studied. Nanofiber morphology was investigated through the analysis of scanning electron microscopy (SEM) micrographs using ImageJ software, while the wettability of the nanofiber mat surfaces was studied through the measurement of the contact angle. Results revealed that when the concentration of the solution was changed from 8wt% to 12wt%, the average nanofiber diameter showed a significant increase from 0.326 µm to 0.380 µm, while the contact angle increased from 39 degrees to 79 degrees. Results also showed that when the applied high voltage was changed from 10 KV to 25 KV, the average nanofiber diameter decreased and then increased within the range of 0.380 to 0.497 µm and that the contact angle was increased from 81 degrees to 108 degrees showing an obvious switching from hydrophilic towards hydrophobic surface. When the syringe pump flow rate was changed from 0.012 ml/min to 0.02 ml/min, morphology measurements showed that the average nanofiber diameter showed a significant increase from 0.351 µm to 0.456 µm, and the surface contact angle was also increased from 43 degrees to 98 degrees. Finally, the results of Fourier Transform Infrared Spectroscopy (FTIR) and X-ray diffraction analysis (XRD) tests showed that the electrospun polyurethane polymer material used in this work was not changed during the electrospinning process.

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“…Although more challenges have been raised especially within facemask fabrication related to fabrication feasibility, scaling-up, elastic performance, and breathability, but such raw materials are still promising for optimum protective layers against bacteria/virus for current and possible future pandemics [43]. Among the recent trials to fabricate elastic nanofibers mats, Abdoluosef et al [44] studied the electrospinning process and the effect of changing different parameters such as polymer concentration, applied voltage, flow rate, and solution temperature on TPU nanofibers. The results showed a potential decrease in nanofibers diameter at 10 wt% from 156 to 139 nm when changing the applied voltage from 5 kV to 15 kV.…”

Section: Introductionmentioning

confidence: 99%

Elastic Nanofibrous Membranes for Medical and Personal Protection Applications: Manufacturing, Anti-COVID-19, and Anti-Colistin Resistant Bacteria Evaluation

et al. 2021

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Herein, in the present work two series of thermoplastic polyurethane (TPU) nanofibers were manufactured using the electrospinning techniques with ZnO and CuO nanoparticles for a potential use as an elastic functional layer in antimicrobial applications. Percentages of 0%, 2 wt%, and 4 wt% of the nanoparticles were used. The morphological characterization of the electrospun TPU and TPU/NPs composites nanofibers were observed by using scanning electron microscopy to show the average fiber diameter and it was in the range of 90–150 nm with a significant impact of the nanoparticle type. Mechanical characterization showed that TPU nanofiber membranes exhibit excellent mechanical properties with ultra-high elastic properties. Elongation at break reached up to 92.5%. The assessment of the developed nanofiber membranes for medical and personal protection applications was done against various colistin resistant bacterial strains and the results showed an increment activity by increasing the metal oxide concentration up to 83% reduction rate by using TPU/ZnO 4% nanofibers against K. pneumoniae strain 10. The bacterial growth was completely eradicated after 8 and 16 h incubation with TPU/ZnO and TPU/CuO nanofibers, respectively. The nanofibers SEM study reveals the adsorption of the bacterial cells on the metal oxides nanofibers surface which led to cell lysis and releasing of their content. Finally, in vitro study against Spike S-protein from SARS-CoV-2 was also evaluated to investigate the potent effectiveness of the proposed nanofibers in the virus deactivation. The results showed that the metal oxide concentration is an effective factor in the antiviral activity due to the observed pattern of increasing the antibacterial and antiviral activity by increasing the metal oxide concentration; however, TPU/ZnO nanofibers showed a potent antiviral activity in relation to TPU/CuO.

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Fabrication of polyurethane and thermoplastic polyurethane nanofiber by controlling the electrospinning parameters

Cited by 10 publications

References 35 publications

Polyurethane-Based T-ZIF-8 Nanofibers as Photocatalytic Antibacterial Materials

Polyurethane-Based T-ZIF-8 Nanofibers as Photocatalytic Antibacterial Materials

Investigation of the Impact of Different Parameters on the Morphology of Electrospun Polyurethane Nanofibers

Elastic Nanofibrous Membranes for Medical and Personal Protection Applications: Manufacturing, Anti-COVID-19, and Anti-Colistin Resistant Bacteria Evaluation

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