PDMS/MWCNT nanocomposite films for underwater sound absorption applications
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DOI: 10.1007/s10853-020-04349-4
Abstract: Polydimethylsiloxane (PDMS) nanocomposite films for underwater sound absorption applications are presented. Films were fabricated by a spin coating method and characterized using XPS, FTIR, TGA, SEM, tensile testing, and elastic cold-neutron scattering. The XPS results… read more here.
Keywords: underwater sound; nanocomposite films; pdms; sound absorption ... See more keywords
Sound Absorption Characteristics of Polyurethane and Polystyrene Foams as Inexpensive Acoustic Treatments
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DOI: 10.1007/s40857-019-00168-z
Abstract: This work examines the absorption characteristics of two well-known porous materials—polyurethane foam (PUF) and polystyrene foam (PSF)—both of which are locally produced and readily available in Saudi Arabia. Nine samples were selected after a careful… read more here.
Keywords: absorption; absorption characteristics; air; material ... See more keywords
The Experimental Research of Sound Absorption in Plasters Produced with Perlite Aggregate and Natural Hydraulic Lime Binder
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DOI: 10.1007/s40857-020-00203-4
Abstract: Restoration of historical buildings should be carried out without giving damage to the existing historical building, and material selections should be determined in accordance with the historical building structure. In addition to the selection of… read more here.
Keywords: absorption; absorption coefficient; research; sound absorption ... See more keywords
Enhancing the flow resistance and sound absorption of open-cell metallic foams by creating partially-open windows
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DOI: 10.1016/j.actamat.2021.116666
Abstract: Abstract Metallic foams with high flow resistivity are of high interest as practical sound absorption materials. Herein, we report the novel open-cell metallic foams associated with a partially-open window morphology between interconnected pores for improved… read more here.
Keywords: cell metallic; sound absorption; metallic foams; open cell ... See more keywords
Experimental and theoretical considerations on sound absorption performance of waste materials including the effect of backing plates
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DOI: 10.1016/j.apacoust.2016.12.010
Abstract: Abstract The acoustic human comfort includes the protection from noise and it is closely related to the sound absorption concept. The paper presents an experimental study on sound absorption coefficients, including transmission, for some combined… read more here.
Keywords: absorption; waste materials; effect backing; backing plates ... See more keywords
Acoustic properties of biodegradable composite micro-perforated panel (BC-MPP) made from kenaf fibre and polylactic acid (PLA)
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DOI: 10.1016/j.apacoust.2018.04.009
Abstract: Abstract This paper investigates the sound absorption of biodegradable composite micro-perforated panel (BC-MPP) made from kenaf fibre and biodegradable polymer known as polylactic acid (PLA). BC-MPP samples were made through conventional machining method such as… read more here.
Keywords: mpp; kenaf fibre; mpp samples; sound absorption ... See more keywords
On the accuracy of the sound absorption measurement with an impedance gun
Sign Up to like & getrecommendations! Published in 2020 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2019.107039
Abstract: Abstract The measurement of the sound absorption coefficient is clearly described in the ISO 10534 series of standards as well as in the ISO 354:2003 standard. However, the methods described in these standards are intended… read more here.
Keywords: measurement; impedance gun; sound absorption; impedance ... See more keywords
Sound absorption performance of sustainable foam materials: Application of analytical and numerical tools for the optimization of forecasting models
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DOI: 10.1016/j.apacoust.2019.107166
Abstract: Abstract Traditional models used to predict acoustic properties of poroelastic materials are usually applied to fibrous layers or polyurethane foams. However, for new materials like complex cellular foams these procedures may not be applied due… read more here.
Keywords: foam; foam materials; acoustic properties; sustainable foam ... See more keywords
Sustainable sound absorbers from fruit stones waste
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DOI: 10.1016/j.apacoust.2019.107174
Abstract: Abstract Ecological and sustainable materials have a growing interest in the field of construction and buildings where recycled materials are being included as constructive solutions. Currently, fruit stones are not used in architectural acoustics and… read more here.
Keywords: acoustics; sustainable sound; sound absorbers; sound absorption ... See more keywords
Numerical study on the influence of fiber cross-sectional shapes on the sound absorption efficiency of fibrous porous materials
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DOI: 10.1016/j.apacoust.2020.107222
Abstract: Abstract Numerical fluid analyses were performed to investigate the influence of the fiber cross-sectional shapes over the sound absorption efficiency of fibrous porous materials. The acoustic properties of the porous materials were simulated with the… read more here.
Keywords: cross sectional; fiber cross; sound absorption; porous materials ... See more keywords
Sound absorption of textile fabrics doped with microcapsules
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DOI: 10.1016/j.apacoust.2020.107285
Abstract: Abstract The use of microcapsules is increasing in the textile industry and play an important role in the field of acoustical porous materials in order to adopt solutions for the control of noise. In this… read more here.
Keywords: doped microcapsules; textile; sound absorption; textile fabrics ... See more keywords