Innovative Composite Materials for Sound Absorption and Insulation: Where We Are and Where We Are Going

Martellotta, Francesco

doi:10.3390/ma14081954

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…Several proposals have been made for the recycling of waste products other than cigarette butts into construction materials in general or acoustic absorbing materials in particular [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Thickness and Density on Acoustic Absorption of Materials Made from Used Cigarette Butts

2021

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The effects of the density and thickness of samples made from used cigarette butts on acoustic characteristics were analyzed in this study. All the analyzed samples showed high acoustic performance, indicating that the fabrication of acoustic absorbing material may be a good use for this problematic waste (due to its toxicity, continuous generation, lack of recycling method, etc.). An increase in either density or thickness shifted the absorption characteristics of the samples to lower frequencies and increased the overall absorption. The relationships of the frequency and value of the maximum absorption coefficient with thickness and/or density were analyzed. The shift of the maximum absorption coefficient value due to varying thickness is in good agreement with previous studies.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Thickness and Density on Acoustic Absorption of Materials Made from Used Cigarette Butts

2021

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Sound contour map of absorber panels from industrial spinning and weaving wastes

El Messiry,

Eid,

Ayman

2024

Journal of Industrial Textiles

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Recycled fibers obtained from pre-textile waste present advantages and challenges in acoustic absorber design. This study examines the potential of incorporating textile waste into acoustic absorption systems, with a focus on pre-used waste, to increase the percentage of recycled fibers in the textile industry using the quantitative method Used to evaluate the efficiency of panels manufactured in different sound frequencies, from up to 2000 Hz, and, in some cases, up to 3000 Hz Observations indicate that surface cleaning products, pneumafil waste a twist, comb bat residue and waste grinders exhibit the highest sound absorption coefficients in and using waste samples In addition, a procedure has been developed to evaluate the sound absorption reduction coefficient, which exposes high correlations with values obtained by other methods Sound contour mapping further confirms the homogeneity of the sample and reveals the effectiveness of specific sound absorption systems, such as air condition station filters, spinning pneumafil waste, and weaving waste (samples 18, 20, 21, and 23). Nevertheless, the study of integration emphasizes the ability to reuse waste fibers for sound insulation that can absorb adequate sound, reduce reflected sound, and offer a promising solution for dealing with noise pollution. A thorough examination of sound contour maps across absorber surfaces is undertaken to account for the material structure of the absorber, ensuring an accurate representation of how sound is absorbed and distributed within the designated area.

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Design and Sound Absorption Performance of a Laminated Structure Using Natural Materials

Yang

Xia

Natsuki

et al. 2023

JFST

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Innovative Composite Materials for Sound Absorption and Insulation: Where We Are and Where We Are Going

Abstract: Materials with sound-absorbing or sound-insulating properties have been rapidly evolving in recent years due to several reasons [...]

Cited by 4 publications

References 12 publications

Analysis of the Influence of Thickness and Density on Acoustic Absorption of Materials Made from Used Cigarette Butts

Analysis of the Influence of Thickness and Density on Acoustic Absorption of Materials Made from Used Cigarette Butts

Sound contour map of absorber panels from industrial spinning and weaving wastes

Design and Sound Absorption Performance of a Laminated Structure Using Natural Materials

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