Sound absorption and compression properties of perpendicular-laid nonwovens

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F19%3A00004957" target="_blank" >RIV/46747885:24210/19:00004957 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24410/19:00004957

Result on the web

<a href="http://journals.sagepub.com/doi/pdf/10.1177/0040517517753634" target="_blank" >http://journals.sagepub.com/doi/pdf/10.1177/0040517517753634</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0040517517753634" target="_blank" >10.1177/0040517517753634</a>

Result language

angličtina

Original language name

Sound absorption and compression properties of perpendicular-laid nonwovens

Original language description

This study presents an investigation into the sound absorption behavior and compression properties of perpendicularlaid nonwovens. Seven types of perpendicular-laid nonwovens produced by vibrating and rotating perpendicular lappers were selected. Nonwovens with varying thickness and areal density were prepared by the heat-pressing method to investigate the effect of structural parameters such as thickness and areal density on sound absorption ability. Measurements of sound absorption properties were carried out with a Bru&DoubleDot;el and Kjær measuring instrument. The effect of manufacturing techniques on sound absorption performance and compression properties was investigated. The effect of porosity on sound absorption ability was studied. The influence of density and fiber orientation angle on compression properties was analyzed. The results show that samples prepared by vibrating perpendicular lapper exhibit better compression properties, whereas there is no significant influence of two manufacturing techniques on sound absorption performance. The increase of areal density results in improvement in the sound absorption ability. The increase of thickness can improve the sound absorption coefficient in the low-frequency range, but decrease of the coefficient occurred in the high-frequency range. A quadratic relationship between porosity and sound absorption ability has been found. The results also show that compressional resistance has a strong relation with density – the correlation coefficient is 0.95, indicating that the compressional resistance is directly proportional to the density of perpendicular-laid nonwovens. The results indicate that the perpendicular-laid nonwovens with higher initial fiber orientation angle have better compression properties.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10307 - Acoustics

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Textile Research Journal

ISSN

0040-5175

e-ISSN

—

Volume of the periodical

89

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

612-624

UT code for WoS article

000456746700014

EID of the result in the Scopus database

2-s2.0-85045114452