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Study on the Sound Absorption Properties of Recycled Polyester Nonwovens through Alkaline Treatment and Dimple Processing.
- Source :
-
Surfaces (2571-9637) . Jun2024, Vol. 7 Issue 2, p238-250. 13p. - Publication Year :
- 2024
-
Abstract
- This study focused on manufacturing efficient automobile sound-absorbing materials through alkaline treatment and dimple processing of recycled polyethylene terephthalate (rPET) nonwoven fabric. The rPET nonwoven fabric was produced with a sound-absorbing material through compression molding. It was improved through the development of porous sound-absorbing materials through alkaline treatment and resonant sound-absorbing materials through dimple processing. As a result of morphological analysis, alkaline treatment showed that pore size and air permeability increased according to temperature and concentration increase conditions. On the other hand, dimple processing caused a decrease in air permeability and a decrease in pores due to yarn fusion, and as the dimple diameter increased, the sound-absorbing coefficient increased in the 5000 Hz band. Finally, it was judged that effective sound absorption performance would be improved through a simple process through alkaline treatment and dimple processing, and thus there would be applicability in various industrial fields. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 25719637
- Volume :
- 7
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Surfaces (2571-9637)
- Publication Type :
- Academic Journal
- Accession number :
- 178183415
- Full Text :
- https://doi.org/10.3390/surfaces7020016