Investigation on sound absorption properties of aerogel/polymer nonwovens

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dc.contributor.authorYang, Tao
dc.contributor.authorXiong, Xiaoman
dc.contributor.authorVenkataraman, Mohanapriya
dc.contributor.authorMishra, Rajesh
dc.contributor.authorNovák, Jan
dc.contributor.authorMilitký, Jiří
dc.date.accessioned2019-08-23T09:44:58Z
dc.date.available2019-08-23T09:44:58Z
dc.date.issued2019-02-01
dc.description.abstractThis paper presents an investigation on sound absorption performance of aerogel/polymer nonwoven fabrics. Polyester/polyethylene nonwovens embedded with hydrophobic amorphous silica aerogel were chosen for sound absorption measurements. The sound absorption coefficient (SAC) of single and laminated layers of aerogel nonwovens blankets was tested by Bruel and Kj AE r impedance tube, the noise reduction coefficient (NRC) was used for numerical analysis. A sound absorption index was developed to analyze the effect of aerogel content on sound absorption ability. The effect of air-back cavities on SAC of single-layer aerogel/polymer nonwoven fabrics was investigated. The results show that there is a decrease in SAC with the increase of aerogel content. It is observed that the NRC linearly increased with the increase of layers for all the samples. It was also found that the air-back cavities result in resonance phenomenon, as the increase in thickness of air-back cavities the peak values of SAC shift toward lower frequencies.cs
dc.format.extent7 strancs
dc.identifier.doi10.1080/00405000.2018.1472540
dc.identifier.urihttps://dspace.tul.cz/handle/15240/153336
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1080/00405000.2018.1472540
dc.language.isocscs
dc.relation.ispartofJOURNAL OF THE TEXTILE INSTITUTE
dc.subjectsound absorptioncs
dc.subjectblanketcs
dc.subjectaerogelcs
dc.subjectnonwovencs
dc.subjectPorous materialcs
dc.titleInvestigation on sound absorption properties of aerogel/polymer nonwovenscs
local.citation.epage201
local.citation.spage196
local.identifier.publikace5805
local.relation.issue2
local.relation.volume110
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