The effect of the combination of multiple woven fabric and nonwoven on acoustic absorption

Segura-Alcaraz, Pilar; Segura-Alcaraz, Jorge; Montava, Ignacio; Bonet-Aracil, Marilés

doi:10.1177/1528083719858771

Cited by 8 publications

(5 citation statements)

References 40 publications

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“…20,26,36 The presence of micro-fiber meltblown nonwoven in the samples reduces the value of STL at all sound frequencies because its fibers have a higher surface area, Table 2, than the other fibers, resulting in a higher flow resistance, despite of its small thickness. 33,37,38 The meltblown nonwoven structure has a low areal density, fiber diameter, and average pore diameter resulting in a relatively high coefficient of sound absorption, particularly in the middle-frequency region. 13,14,27 In the case of the multi-layer structure, the STL mainly depends on the sound transmission of the layer directly facing the sound wave.…”

Section: Resultsmentioning

confidence: 99%

Investigation of sound transmission loss of natural fiber/rubber crumbs composite panels

Messiry

Ayman

2021

Journal of Industrial Textiles

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Natural fibers and their waste are widely used all over the world, and their production has been increasing continuously. But, the rubber crumbs from used tire disposal are nonbiodegradable and present significant problems about their end-of-life given a critical environmental impact. These problems require recycling policies to provide the collection and recycling of used clothing, textile wastes, and rubber crumbs. In this work, the acoustic properties of insulator panels from the combination of textile fibers and rubber crumbs material were analyzed. Insulator panels demonstrated a good sound transmission loss (STL) characteristic, especially at high frequencies. The STL of the manufactured panels from a combination of fiber (cotton, wool, and Kapok) and rubber crumbs was investigated at the different sound frequencies. Results indicated that the fiber/rubber crumbs panel had a significant STL profile of 47 dB, 40 dB, and 35 dB, for Kapok, wool, and cotton, respectively. The addition of polylactic acid meltblown nonwoven fabric on the surface of the rubber crumbs side considerably increases the STL by 20%.

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Section: Resultsmentioning

confidence: 99%

Investigation of sound transmission loss of natural fiber/rubber crumbs composite panels

Messiry

Ayman

2021

Journal of Industrial Textiles

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“…When the sound waves reflected again, the membrane in front could prevent the waves reflecting to the outside, making part of the waves re-entered the sound absorber. This cyclical movement made the sound energy convert into heat and kinetic energy and consumed [45]. Consequently, the acoustic properties were further improved.…”

Section: Effects Of Assembly Sequence On Sound Absorption Performancementioning

confidence: 99%

Design of microperforated nanofibrous membrane coated nonwoven structure for acoustic applications

Shen¹,

Lee²,

Yan³

2022

Nanotechnology

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In this paper, a promising acoustic structure for noise reduction was prepared, in which microperforated nanofibrous resonant membrane together with nonwovens were used. The role of microperforated nanofibrous film, the effect of perforation parameters, cavity and the assembly sequence of the composite fibrous structure on sound absorption performance has been studied. This structure effectively combined the porous sound absorbing, micro-perforated absorbing and membrane resonance mechanisms, which can improve the sound absorbing performance without weight and thickness penalty offering a competitive advantage in noise reduction. In addition, the composite materials exhibited favorable performance in a wide-frequency regime under the condition of appropriate assembly sequence and perforation parameters.

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“…The textile materials in various forms viz., woven [73][74][75][76], carpet [77,78], nonwoven [70,76,[79][80][81][82][83][84][85][86][87][88], knitted [89], and composite [31,48,59,68,[90][91][92][93] were used for control of noise.…”

Section: Textile Materials As Porous Absorber 41 Textile Fibrementioning

confidence: 99%

Textiles for Noise Control

Datta¹,

Das²,

Nath³

2021

Textiles for Functional Applications

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This chapter includes the mechanism of sound absorption and the classes of sound absorbing material to control the noise. The basic phenomena related to the reduction of sound by allowing it to soak in and dissipate also were introduced first, which, can be realised by viscous effects, heat conduction effects, and internal molecular energy interchanges. Porous absorbers are materials where sound propagates through an interconnected pore network resulting in sound energy dissipation. They are only effective at the mid-to-high frequency range, which is most sensitive to the human ear. The applications of different textile fibres and their various forms were identified later in the chapter. Finally, specific discussions are given to sound parameters, noise absorption coefficient, and its measurement technique. The chapter also deals with various factors influencing sound absorption.

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The effect of the combination of multiple woven fabric and nonwoven on acoustic absorption

Cited by 8 publications

References 40 publications

Investigation of sound transmission loss of natural fiber/rubber crumbs composite panels

Investigation of sound transmission loss of natural fiber/rubber crumbs composite panels

Design of microperforated nanofibrous membrane coated nonwoven structure for acoustic applications

Textiles for Noise Control

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