Importance of Durability on Acoustical Performance for Carpet Underlay

970148

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
ICI has reviewed the acoustical performance of cast polyurethane foam and shoddy pad when used for Automotive Carpet Underlay applications.
Data will be presented on a range of all MDI-based acoustic foam systems as well as traditional automotive carpet underlay material. Particular attention will be paid to the influence of compression set durability on acoustical performance. Using a newly developed test method to simulate long-term in-vehicle usage, it will be shown that extended compression gives an acoustic improvement when using polyurethane foam compared to conventional shoddy pad.
Additionally, it has been shown that recent advances in polyurethane foam density reduction have not adversely affected acoustic performance in automotive carpet underlay applications.
Meta TagsDetails
DOI
https://doi.org/10.4271/970148
Pages
5
Citation
Buck, K., and Wellman, R., "Importance of Durability on Acoustical Performance for Carpet Underlay," SAE Technical Paper 970148, 1997, https://doi.org/10.4271/970148.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970148
Content Type
Technical Paper
Language
English