A review on novel approaches to enhance sound absorbing performance using textile fibers

Madushika, Jayawardana Withanage Achini; Lanarolle, Wilathgamuwage Don Gamini

doi:10.1080/00405000.2021.1872831

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…Until now, multilayer structures (sandwich structures, gradient porous structures, and directional structures), porous micro/nano structures, membrane sound-absorbing structures and perforated resonance structures are becoming mainstream theoretical structures. 10,44 –47 These structural design methods combine materials with different properties, raw materials and structures, or combine porous sound absorption, resonance sound absorption, and damping vibration reduction mechanisms to prepare composite sound-absorbing structures, without sacrificing space at the same time as broadening the material’s sound absorption band, giving the porous fiber material broadband and efficient sound absorption ability.…”

Section: Fiber-based Sound-absorbing Structuresmentioning

confidence: 99%

The review of fiber-based sound-absorbing structures

Zhang

Gong

et al. 2022

Textile Research Journal

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According to the World Health Organization, noise pollution is second only to air pollution in its impact on health and the environment. Fiber-based sound-absorbing structures have great application potential in the field of sound absorption and noise reduction because they can provide a wider sound absorption range than traditional porous fiber materials, and at the same time have the advantages of light weight, low cost and strong processability. Consequently, significant research interest in the field of noise control has been directed into the study of composite sound-absorbing materials based on porous fiber materials. In this review, we have summarized manifold theoretical structures based on fiber materials, such as multilayer structure, porous micro/nano structure, membrane sound-absorbing structure and perforated resonance structure of fiber-based sound-absorbing structures, aiming to illustrate that the structure must affect the sound absorption performance of the material. The focus is on the research and development of the design concepts, and preparation methods of fiber-based acoustic structures are reviewed. Finally, this review concludes with the prospects and outlook for fiber-based acoustic structures. We hope that this article which reviews the structure design principle and preparation method of fiber-based sound-absorbing structures can give inspirations for readers.

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Section: Fiber-based Sound-absorbing Structuresmentioning

confidence: 99%

The review of fiber-based sound-absorbing structures

Zhang

Gong

et al. 2022

Textile Research Journal

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“…Workers in firefighting, emergency rescue, metallurgy, aerospace, and other thermo-related fields often face a variety of potential thermal disasters or extreme temperature conditions, such as flames, heat radiation, hot steam, alternating high/low temperatures, etc., which place high demands on protective clothing. − The present protective clothing material is generally composed of high-performance polymer fibers that are characterized by high mechanical property, good thermal stability, and flame retardancy. − With the development of cutting-edge industries, people put forward higher requirements for protective performance of clothes in a complex environment to ensure the life safety. In addition to improve the fundamental thermomechanical properties of polymer matrix, the structure of protective materials also needs to be constantly optimized. − Aerogel is a class of porous materials made of colloidal particles or polymer molecules interconnected into a 3D network structure, which possesses high porosity, low density, large specific surface area (SSA), low dielectric constant, and low thermal conductivity (TC). − Processing a high-performance polymer into an aerogel can not only overcome the disadvantage of poor mechanical property of traditional inorganic aerogels but also have advantages of good temperature resistance and flame retardancy. − Researchers have conducted studies on aerogels made from high-performance polymers such as polyimide (PI) and polyamide and demonstrated their potential for thermal insulation and flame retarding applications. , However, the vast majority of aerogels reported so far are in the form of monolith or film, which cannot meet the requirements of textiles. The combination of high-performance fiber and aerogel structure is expected to afford new flexible, lightweight, and wearable protective materials.…”

Section: Introductionmentioning

confidence: 99%

Redox Responsive Sol–Gel Transition: A New Concept for Continuous Spinning of High-Performance and Recyclable Aerogel Fibers

Liu,

Xiong,

Sun

et al. 2023

Chem. Mater.

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Aerogel fibers are a new kind of fibrous materials with high porosity and low thermal conductivity, which hold great promise in applications of thermal insulation and personal protection. However, the great differences in mechanisms of gel transformation and fiber spinning, the contradiction between spinnability of spinning solution and crosslinking structure of the gel network, and the difficulty in balancing the key properties of fiber have significantly limited the practical applications of aerogel fibers. Herein, we report a novel "redox-responsive sol-gel transition spinning" method for the continuous spinning of polybenzimidazole/cobalt ion (Co) aerogel fibers, which utilizes the coordination property changes of imidazole ligands and Co with different redox states. The weak coordination interaction between imidazole and Co 2+ endows the polybenzimidazole/Co 2+ solution with good fluidity and spinnability, while the rapid and uniform oxidation of imidazole/Co 2+ to strong imidazole/Co 3+ complex in the spinning process allows the construction of a robust crosslinked network. Aerogel fibers obtained with optimal synthetic parameters demonstrate the homogeneous microporous structure in both internal and surface, high mechanical strength, low thermal conductivity, excellent thermal stability, and flame resistance. Furthermore, stretching treatment of organogel fibers prior to drying significantly improves the mechanical properties of aerogel fibers with strength as high as 240.6 MPa. These properties make the aerogel fibers promising for protection applications under extreme environments. The non-covalent crosslinking also permits the recycling of aerogel fibers by dissociation and reconstruction of the coordination bonds. This work is expected to provide a facile approach for continuous spinning of high-performance and recyclable aerogel fibers.

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“…This necessitates the design of novel materials. Electrospun nanofiber materials are one of the most promising and alternative materials, with several benefits such as high porosity, small pore size, and high surface area [3,4].…”

Section: Introductionmentioning

confidence: 99%

An experimental study for evaluating the sound absorption coefficient of polylactic acid electrospun nonwoven

PAKOLPAKIL

2023

ACE

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Noise pollution is becoming more prevalent, and it is currently the world's third most serious pollution problem. In recent years, nanofibers have achieved great interest in acoustics applications for noise control. Electrospun nonwovens can enhance acoustic insulation goods by enhancing the sound absorption coefficient, reducing material thickness, and diminishing material weight, giving them a strategic advantage. Polylactic acid (PLA) polymer has sparked a lot of attention as a potential textile material for a sustainable future. In this study, nonwoven mats of PLA were prepared by electrospinning with various amounts of deposition time (30, 60, and 120 min). The electrospun layers was coated on the PP nonwoven and used samples with different thicknesses of textile materials. The measurements of the absorption coefficient have been performed with the impedance tube in the frequency range of 500 Hz-6400 Hz. The test results were compared with measurements carried out on PP nonwoven without the layer of nanofibers. Electrospun samples that are quite thin were found to be particularly effective at high frequencies. This study demonstrated that the sound absorption property of a textile material that does not have sound-absorbing properties could be improved simply by coating with electrospinning using PLA polymer.

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A review on novel approaches to enhance sound absorbing performance using textile fibers

Cited by 10 publications

References 35 publications

The review of fiber-based sound-absorbing structures

The review of fiber-based sound-absorbing structures

Redox Responsive Sol–Gel Transition: A New Concept for Continuous Spinning of High-Performance and Recyclable Aerogel Fibers

An experimental study for evaluating the sound absorption coefficient of polylactic acid electrospun nonwoven

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