Sound Absorption Properties and Accuracy of Prediction Models on Natural Fiber Based Nonwoven Materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F22%3A00009565" target="_blank" >RIV/46747885:24210/22:00009565 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24410/22:00009565 RIV/46747885:24620/22:00009565
Result on the web
<a href="https://www.tandfonline.com/doi/full/10.1080/15440478.2021.2002755" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/15440478.2021.2002755</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/15440478.2021.2002755" target="_blank" >10.1080/15440478.2021.2002755</a>

Result language
angličtina
Original language name
Sound Absorption Properties and Accuracy of Prediction Models on Natural Fiber Based Nonwoven Materials
Original language description
In this work, the sound absorption performance of cotton fiber- and wool fiber-based nonwoven fabrics as well as one pure polyester nonwoven fabric were investigated. The Bruel & Kj AE r two-microphone impedance tube is used to conduct the measurement in the frequency of 50-6400 Hz. Empirical and semi-phenomenological models are used to predict the acoustical impedance and sound absorption coefficient of natural fiber-based nonwoven fabrics. The nonwoven fabric containing 60 wt.% cotton fiber and 40 wt.% polyester fiber shows a comparable sound absorption ability compared with the polyester nonwoven. At the same time, this property for wool-based nonwoven is relatively poor. Moreover, the prediction is still not acceptable, although the Voronina model exhibits better prediction for the natural fiber-based nonwoven materials compared with the other two prediction models. The modification on the Miki model was conducted to fit the cotton and wool fiber-based nonwovens. The modified Miki model demonstrates an accurate prediction on surface impedance and sound absorption coefficient for the natural fiber-based nonwovens.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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