Design of electrospun polyacrylonitrile nanofiber–coated nonwoven structure for sound absorption

Öztürk, Merve Küçükali; Nergis, Banu; Candan, Cevza

doi:10.1002/pat.4236

Cited by 25 publications

(11 citation statements)

References 13 publications

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“…By using a magnetic stirrer for 24 h under laboratory conditions (20 ± 2°C and 65 ± 2% relative humidity), a polymer solution with a concentration of 15% w/w was obtained. PAN polymer was selected since it has been shown that it works well as sound absorber [33–36]. Moreover, they are less affected by ambient relative humidity and temperature (Tg: 95°C) changes.…”

Section: Methodsmentioning

confidence: 99%

“…Nanofibers can be manufactured by electrospinning which have so many applications [32]. Accordingly, nanofibers have recently been investigated by many researchers for acoustic applications [33–37]. It was shown that good sound absorption properties can be achieved by adding polyacrylonitrile (PAN) nanofiber to the polyurethane foam structure.…”

Section: Introductionmentioning

confidence: 99%

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Sound absorption of warp knitted spacer fabrics based on knit structure and nanofiber enhancement

Farahani

Avanaki

Jeddi

2020

Journal of Industrial Textiles

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In this work, the sound absorption properties of warp knitted spacer fabrics enhanced with nanofiber were studied. The angle of connecting yarns at two different spacing was considered as knit structure variable. Also, the effect of layering on the sound absorption performance was studied. Besides that, the effect of polyacrylonitrile nanofiber enhancement on sound absorption coefficient of such structures were considered. The polyacrylonitrile nanofibers were manufactured by a single-nozzle electrospinning device using a rotating cylindrical collector. The main variable for the nanofiber enhancement was its deposition amount on the front surface of spacer fabrics. The sound absorption coefficient was measured by using the method of impedance tube. For this purpose, the samples were prepared according to the requirements, and the tests were performed at the frequency range of 500–6000 Hz on single-layer and multi-layer samples. The results showed that increasing the spacing and the angle of connecting yarns will enhance the sound absorption coefficients of samples through increasing their areal mass, thickness and porosity. Moreover, layering will significantly affect the sound absorption performance of samples. Furthermore, nanofiber enhancement increased the absorption of sound at all frequencies.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sound absorption of warp knitted spacer fabrics based on knit structure and nanofiber enhancement

Farahani

Avanaki

Jeddi

2020

Journal of Industrial Textiles

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“…This material is trending in textile-based research where different researchers are working to manufacture smart textiles to generate energy [ 22 – 23 ]. Nanofibers have many technical applications such as in air and liquid filtration [ 24 – 25 ], tissue engineering [ 26 – 27 ], drug delivery [ 28 ], wound dressings [ 29 ], sound adsorption [ 30 ], cosmetics [ 31 ], and sensor devices [ 32 – 34 ]. In filtration processes, electrospun nanofibers can be employed for removing volatile organic compounds (VOCs) from the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric nanogenerator for bio-mechanical strain measurement

Javed¹,

Rafiq²,

Nazeer³

et al. 2022

Beilstein J. Nanotechnol.

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Piezoelectric materials have attracted more attention than other materials in the field of textiles. Piezoelectric materials offer advantages as transducers, sensors, and energy-harvesting devices. Commonly, ceramics and quartz are used in such applications. However, polymeric piezoelectric materials have the advantage that they can be converted into any shape and size. In smart textiles, polyvinylidene fluoride (PVDF) and other piezoelectric polymers are used in the form of fibers, filaments, and composites. In this research, PVDF nanofibers were developed and integrated onto a knitted fabric to fabricate a piezoelectric device for human body angle monitoring. Scanning electron microscopy and X-ray diffraction analyses were used to study the morphology and to confirm the beta phase in fibers. The results reveal that the nanofibers made from solutions with high concentration were smooth and defect-free, compared to the fibers obtained from solutions with low concentration, and possess high crystallinity as well. Under high dynamic strain more output voltage is generated than under low dynamic strain. The maximum current density shown by the device is 172.5 nA/cm2. The developed piezoelectric nanofiber sensor was then integrated into a knitted fabric through stitching to be used for angle measurement. With increasing bending angle, the output voltage increased. The promising results show that the textile-based piezoelectric sensor developed in this study has a great potential to be used as an angle measuring wearable device for the human body due to its high current density output and flexibility.

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“…To heighten the acoustic properties of fibrous materials, they have been optimized by thermoplastic polymer, [10] component, [11] processing parameters, [12] and nonwoven structure. [13] Ramamoorthy et al fabricated silica aerogels in organic fiber nonwoven fabrics and studied their sound absorption properties. The results exhibited higher sound absorption coefficient (SAC) than the pure nonwoven fabrics in the all frequency ranges.…”

Section: Introductionmentioning

confidence: 99%

“…To heighten the acoustic properties of fibrous materials, they have been optimized by thermoplastic polymer, component, processing parameters, and nonwoven structure . Ramamoorthy et al fabricated silica aerogels in organic fiber nonwoven fabrics and studied their sound absorption properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of crossing film among glass fibers on blanket performance

Chen

Wang

et al. 2019

Polymer Composites

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An effective film construction was provided as a noise‐reducing materials based on self‐assembled polymer film supported by ultralight glass fiber blanket (UGFB) skeleton. The synthesized polymer film enhanced UGFB structure shows about 60% improvement over a broad frequencies compared to neat UGFB. The sound transmission loss has a remarkably increasing of 16.59 dB at 4 kHz. The reinforced acoustic performances was created by the structural optimization of UGFB/UMPR‐film, owing to the observably enhanced tortuosity in sound waves transmission and reinforced surface area, which can induce more viscous and thermal losses when the acoustic wave consumes in the semiopen pore construction. Moreover, the UGFB/UMPR‐film demonstrates 7.4 times increasing in breaking strength (width direction) and the degrees of uniformity lower than 0.0771. The manufacture of this new acoustic damping materials is low cost, structural controllable, and easy to large‐scale preparation, making it can be applied in multitudinous applications.

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Design of electrospun polyacrylonitrile nanofiber–coated nonwoven structure for sound absorption

Cited by 25 publications

References 13 publications

Sound absorption of warp knitted spacer fabrics based on knit structure and nanofiber enhancement

Sound absorption of warp knitted spacer fabrics based on knit structure and nanofiber enhancement

Piezoelectric nanogenerator for bio-mechanical strain measurement

Effect of crossing film among glass fibers on blanket performance

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