Development of a new nanofibrous composite material from recycled nonwovens to improve sound absorption ability

Özkal, Ayşe; Çallıoğlu, Funda Cengiz; Akduman, Çiğdem

doi:10.1080/00405000.2019.1631075

Cited by 24 publications

(8 citation statements)

References 21 publications

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“…Thus, three-dimensional (3D) ultrafine-fiber products are promising for noise reduction in the field of vehicles . The electrospinning technique, with the merit of various material choices (polymer, , ceramic, , carbon, − and so on), easy control, and scalable synthesis availability, has been proven to be one of the most promising methods to fabricate microfibers and nanofibers. − However, the electrospun fibers usually directly assemble into densely packed membranes (with a thickness less than 100 μm); the thin felt exhibited a mediocre sound absorption performance due to the lack of contact time with the sound wave, and the thin electrospun fiber felts usually combine with nonwoven felts, fabrics, or foams in the sound absorption application, which can not realize the maximum utilization of electrospun ultrafine fibers. − Thus, it is necessary to fabricate 3D fiber assemblies to maximize the benefit of electrospun ultrafine fibers. Considerable efforts have been carried out to fabricate 3D electrospun fiber assemblies, such as mounting needles on the collector, − expanding the fiber layers by gas foaming, − or using a liquid bath collector. , Despite this progress in the construction of 3D fluffy electrospun fiber monoliths, the poor structural stability and the difficulty in pilot production severely hinder the application of these materials in the field of sound absorption. , Recently, 3D electrospun fiber assemblies have been fabricated by using oppositely charged jets or stacking the fiber felts, and they showed a better sound absorption performance than the commercial products.…”

Section: Introductionmentioning

confidence: 99%

Ultralight and Resilient Electrospun Fiber Sponge with a Lamellar Corrugated Microstructure for Effective Low-Frequency Sound Absorption

Cao

Yin

et al. 2019

ACS Appl. Mater. Interfaces

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Low-density 3D ultrafine fiber assemblies obtained from direct electrospinning enable promising applications in sound absorption fields but are often hindered by their poor structure stability. Here, we demonstrate an electrospun ultrafine fiber sponge with a microstructure-derived reversible elasticity and high sound absorption property, which is achieved by designing a hierarchical lamellar corrugated architecture that functioned as elastic units. The obtained electrospun fiber sponge can quickly recover to the original height even under the distortion from burdens 8900 times its weight. Particularly, the material can maintain its structural stability after 100 cycles at 60% strain. Moreover, the initial hierarchical structure and hydrophobicity of the prepared materials endow them with an ultralight property (density of 6.63 mg cm–3), superior low-frequency sound absorption, and excellent performance maintenance. The successful synthesis of these fascinating materials may provide new insights into the design of lightweight and efficient sound absorption materials.

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Section: Introductionmentioning

confidence: 99%

Ultralight and Resilient Electrospun Fiber Sponge with a Lamellar Corrugated Microstructure for Effective Low-Frequency Sound Absorption

Cao

Yin

et al. 2019

ACS Appl. Mater. Interfaces

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“…As the fiber uniformity coefficient value approaches 1, the homogeneity of the nanofibers increases. 11,42 In this case, PF (100:0) is the most homogeneous nanofiber, followed by 5% CE PF (100:0) to which 5% (w/w) clove extract was added.…”

Section: Polymer Solution and Electrospun Nanofiber Characterization ...mentioning

confidence: 99%

Production of clove extract loaded pullulan and whey protein nanofibers as antioxidant and antibacterial agent

Zambak

Özkal

2022

J of Applied Polymer Sci

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In this study, clove extract loaded nanofibers consisting of pullulan and whey protein were produced by electrospinning method in order to improve antibacterial and antioxidant activity. Diameters of the produced nanofibers varied between 215.7 and 536.8 nm. Fourier Transform Infrared Spectroscopy (FTIR), X‐ray diffraction (XRD) and differential scanning calorimeter (DSC) results showed that there was a close interaction between the obtained nanofibers and clove extract. Although the antioxidant activity of the nanofibers varied between 1535 and 4174 μmol TE/g dm, the antioxidant activity of the clove extract loaded nanofibers tended to increase when compared to their polymer solutions. The total phenolic content of the nanofiber samples varied between 4.93 and 45.05 mg GAE/g dm. It has been determined that clove extract loaded nanofibers showed antibacterial activity against Staphylococcus aureus (ATCC29113) and Micrococcus luteus (NCIMB). As a result, it was seen that the addition of clove extract improved the antioxidant and antibacterial properties of the fibers and these fibers could be a potential coating and packaging material that could have a potential use in food preservation.

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“…By adjusting the deposition amount and surface coating arrangement, the sound absorption coefficient of the composite can reach 0.7 at low and medium frequencies. Özkal et al [ 81 ] reported a sound absorption material made of electrospun PU nanofibers and polyester needle-punched nonwovens. This composite shows an excellent improvement in sound absorption compared with commercial sound absorption materials.…”

Section: Electrospun Micro/nanofiber-based Porous Sound Absorption Ma...mentioning

confidence: 99%

Research Progress on Sound Absorption of Electrospun Fibrous Composite Materials

Peng

et al. 2022

Nanomaterials

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Noise is considered severe environmental pollutant that affects human health. Using sound absorption materials to reduce noise is a way to decrease the hazards of noise pollution. Micro/nanofibers have advantages in sound absorption due to their properties such as small diameter, large specific surface area, and high porosity. Electrospinning is a technology for producing micro/nanofibers, and this technology has attracted interest in the field of sound absorption. To broaden the applications of electrospun micro/nanofibers in acoustics, the present study of electrospun micro/nano fibrous materials for sound absorption is summarized. First, the factors affecting the micro/nanofibers’ sound absorption properties in the process of electrospinning are presented. Through changing the materials, process parameters, and duration of electrospinning, the properties, morphologies, and thicknesses of electrospun micro/nanofibers can be controlled. Hence, the sound absorption characteristics of electrospun micro/nanofibers will be affected. Second, the studies on porous sound absorbers, combined with electrospun micro/nanofibers, are introduced. Then, the studies of electrospun micro/nanofibers in resonant sound absorption are concluded. Finally, the shortcomings of electrospun micro/nano fibrous sound absorption materials are discussed, and the future research is forecasted.

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Development of a new nanofibrous composite material from recycled nonwovens to improve sound absorption ability

Cited by 24 publications

References 21 publications

Ultralight and Resilient Electrospun Fiber Sponge with a Lamellar Corrugated Microstructure for Effective Low-Frequency Sound Absorption

Ultralight and Resilient Electrospun Fiber Sponge with a Lamellar Corrugated Microstructure for Effective Low-Frequency Sound Absorption

Production of clove extract loaded pullulan and whey protein nanofibers as antioxidant and antibacterial agent

Research Progress on Sound Absorption of Electrospun Fibrous Composite Materials

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