Air Permeability of Polyester Nonwoven Fabrics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F15%3A00003225" target="_blank" >RIV/46747885:24410/15:00003225 - isvavai.cz</a>
Result on the web
<a href="http://apps.webofknowledge.com/InboundService.do?SID=T1IhMOuhP" target="_blank" >http://apps.webofknowledge.com/InboundService.do?SID=T1IhMOuhP</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/aut-2014-0019" target="_blank" >10.2478/aut-2014-0019</a>

Result language
angličtina
Original language name
Air Permeability of Polyester Nonwoven Fabrics
Original language description
Air permeability is one of the most important properties of non-woven fabrics in many applications. This paper aims to investigate the effects of thickness, porosity and density on the air permeability of needle-punched non-woven fabrics and compare theexperimental values with two models which are based on hydraulic radius theory and drag theory, respectively. The air permeability of the samples was measured by an air permeability tester FX3300. The results showed that the air permeability of non-wovenfabrics decreased with the increase in thickness and density of samples, increased with the increase of porosity, and the air permeability was not directly proportional to the pressure gradient. Meanwhile, the prediction model based on hydraulic radiustheory had a better agreement with experimental values than the model based on drag theory, but the values were much higher than the experimental results, especially for higher porosity and higher pressure gradient.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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