Nanocomposite polyacrylonitrile filaments with electrostatic dissipative and antibacterial properties

Kızıldağ, Nuray; Uçar, Nuray

doi:10.1177/0021998316635731

Cited by 9 publications

(6 citation statements)

References 49 publications

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“…The stress–strain curve of M 6:1 – M 6:6 in Figure 6a combined with the data in Table 1 show that as the PU velocity ratio rises, tensile strength can be as high as 3.96 MPa of M 6:4 , which is 1.57 times higher than that of the M PAN (2.52 MPa). And the elongation at break increases to 95.09%, which is 3.11 times compared to that of M PAN (30.54%), and the toughness is very obvious and higher than those in several related reports 43–45 . As can be seen from the toughness tensile in Figure 6b, the addition of PU greatly enhances the toughness of the coaxial nanofiber membrane, which can reach up to 320.38 kJ/m 3 , which is 4.11 times higher than that of the membrane M PAN (77.89 kJ/m 3 ).…”

Section: Resultsmentioning

confidence: 77%

“…And the elongation at break increases to 95.09%, which is 3.11 times compared to that of M PAN (30.54%), and the toughness is very obvious and higher than those in several related reports. [43][44][45] As can be seen from the toughness tensile in Figure 6b, the addition of PU greatly enhances the toughness of the coaxial nanofiber membrane, which can reach up to 320.38 kJ/m 3 , which is 4.11 times higher than that of the membrane M PAN (77.89 kJ/m 3 ). So the combination of strength and toughness makes M 6:4 perhaps more suitable for the application.…”

Section: Mechanical Properties Analysismentioning

confidence: 92%

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Preparation of PAN@PU coaxial electrostatic spun nanofibers for oil/water separation

Fang,

Li,

Feng

et al. 2023

J of Applied Polymer Sci

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Coaxial electrostatic spinning (co‐electrostatic spinning) technology has greatly expanded the versatility of the preparation of core–shell polymer nanofibers and has found a wide range of applications in the environmental and biological fields. Here we present a method for the preparation of coaxial nanofibers using polyacrylonitrile (PAN) and polyurethane (PU) as raw materials. It was found that the tensile strength ranges from 2.14 to 4.07 MPa with the increasing spinning speed of the nucleated PU layer, and the elongation at break was up to 95.09% for M6:4, which was three times higher than that of the original MPAN (30.54%), and the toughness of the nanofiber film was also significantly improved. Finally, the oil/water separation capacity of the coaxial nanofiber membrane was investigated, and the results showed that the separation fluxes for various oil compounds ranged from 2380.18 to 3130.17 L·m−2·h−1, with separation efficiencies above 99%. This study not only investigates the effect of different flow rates of core (PU)/shell (PAN) on the performance of coaxial electrostatic spun nanofiber membranes, but also provides a new insight into the coaxial electrostatic spinning process.

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Section: Resultsmentioning

confidence: 77%

Section: Mechanical Properties Analysismentioning

confidence: 92%

Preparation of PAN@PU coaxial electrostatic spun nanofibers for oil/water separation

Fang,

Li,

Feng

et al. 2023

J of Applied Polymer Sci

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“…The increase in breaking tenacity with AgNO 3 addition is attributed to the formation of coordination bonds between Ag ions and nitrile groups of PAN [64] and consequent increase in the crystallinity (Table 3). The strengthening effect of AgNO 3 was pointed out when it was added to the PAN filament structure alone [48]. While the breaking elongation values decreased with the addition of TiO 2 , they increased with AgNO 3 addition, which might have been due to the increased amount of voids in the filament structure leading to the increased ductility of the nanocomposite filaments.…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, AgNPs are reported to be strong and broad-spectrum antibacterial agents against diverse species [46]. Futhermore, they improve the electrical conductivity of textile materials [47,48].…”

Section: Introductionmentioning

confidence: 99%

“…Kizildag and Ucar produced PAN filaments with silver nitrate and applied chemical reduction process by immersing the composite filaments into aqueous solution of hydrazinium hydroxide in order to obtain PAN/AgNP nanocomposite filaments. Composite filaments were semiconductive and antibacterial with improved mechanical and thermal properties [48].…”

Section: Introductionmentioning

confidence: 99%

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Nanocomposite polyacrylonitrile filaments with titanium dioxide and silver nanoparticles for multifunctionality

Kızıldağ

Uçar

Önen

2017

Journal of Industrial Textiles

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Nanocomposite polyacrylonitrile filaments containing titanium dioxide and silver nanoparticles were produced by wet-spinning method with the aim of developing multifunctional filaments showing antibacterial activity, photocatalytic activity, and electrical conductivity. The nanocomposite filaments were characterized regarding their morphology, composition, nanoparticle dispersion, tensile properties, crystallinity, conductivity, thermal properties, photocatalytic, and antibacterial activity. The nanoparticles were observed to be well dispersed. The composite filaments with 3 wt% silver nitrate showed improved crystallinity. The highest breaking tenacity of 8.72 cN/tex was observed for the filament with 1 wt% TiO2 and 3 wt% AgNO3. The conductivity of the nanocomposite filaments were on the order of 10−4 S/cm, which is in the semiconductive range. The nanocomposite filaments displayed both antibacterial and photocatalytic activity. This study showed the possibility of producing multifunctional filaments with the simultaneous addition of different types of nanoparticles into the filament structure.

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Polyvinylidene fluoride/polysulfone/air plasma defected hexagonal boron nitride emerging nano blends for electrostatic dissipation

Humbe

Joshi

Deshmukh

et al. 2022

J of Applied Polymer Sci

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In the present era electrostatic dissipation (ESD) property is crucial for packaged electronic device to protect from humidity over long duration. It was important to control the ESD for better integrated packaged electronic gadgets. Polymer blends and composites were modified with nano fillers as a promising area for ESD applications. In the present investigation, polyvinylidene fluoride (PVDF)/polysulfone (PSF) was modified by untreated (UT) and air plasma treated (PT) hexagonal boron nitride (h‐BN) by solution dispersion method. Spherulitic morphology of nano blends was foreseen through scanning electron microscopy. Surface topography was investigated by atomic force microscopy. Surface roughness was decreased due to plasma exposure. Phonon vibrations and Raman active mode of nano blends were confirmed by Raman spectroscopy mutually supporting ESD phenomenon. Increased electrical conductivity and semicircular impedance pattern of modified blends reveals an excellent ESD property disclosed by impedance spectroscopy. Moderate increased surface energy and decreased relative contact angle of modified blends may be due to the incorporation of polar groups during plasma exposure was confirmed by surface goniometer. Mechanical properties of nano blends were evaluated by universal testing machine. Increased 10–27% tensile strength and 34–55% Young's modulus of plasma treated admix composition. Softness of polymer nano blends was increased (20%) due to excellent interaction of filler and polymer host system were tested by Shore “A” durometer. Increased glass transition temperature (Tg = 16 and 30°C as function of treatment time) in view of thermal stability of modified nano blends were analyzed by thermogravimetric technique. Hence the PT h‐BN dispersed PVDF/PSF emerging polymer nano blends would be a choice for the new development for electrostatic dissipation applications.

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Nanocomposite polyacrylonitrile filaments with electrostatic dissipative and antibacterial properties

Cited by 9 publications

References 49 publications

Preparation of PAN@PU coaxial electrostatic spun nanofibers for oil/water separation

Preparation of PAN@PU coaxial electrostatic spun nanofibers for oil/water separation

Nanocomposite polyacrylonitrile filaments with titanium dioxide and silver nanoparticles for multifunctionality

Polyvinylidene fluoride/polysulfone/air plasma defected hexagonal boron nitride emerging nano blends for electrostatic dissipation

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