| Titre : |
PU nanofibrous membrane with gradient laminated structure for efficient sound absorption |
| Type de document : |
texte imprimé |
| Auteurs : |
Yuepeng Xu, Auteur ; Shousen Zhao, Auteur ; Yanru Zhang, Auteur ; Zhaolin Liu, Auteur ; Haoyue Li, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 31-34 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Composites
Dioxyde de manganèse
Electrofilature
Isolation acoustique
Membranes (technologie)
Nanofibres
Polyuréthanes
Revêtement monocouche
Son -- Absorption
|
| Index. décimale : |
677.4 Textiles artificiels |
| Résumé : |
In order to solve the problem of noise pollution, polyurethane (PU) nanofibrous membranes with different structures were prepared by electrospinning. The influence of layer number, single-layer basis weight arrangement and the concentration of MnO2 on the sound absorption performance was investigated. The results show that the sound absorption coefficient of the PU laminated nanofibrous membranes enhances initially and then declines with the increase of the layer numbers, reaching the maximum when the layer number is 8. The overall sound absorption performance of the PU nanofibrous membranes with increasing single-layer basis weight arrangement is better than that of the membranes with decreasing single-layer basis weight arrangement. When the concentration of Mn02 is 2 wt.%, the sound absorption coefficient of the MnO2/PU composite membrane achieves its peak value due to the fine fiber diameter and high porosity. |
| Note de contenu : |
- EXPERIMENTAL : Preparation of PU single-layer nanofibrous membranes - Preparation of PU laminated nanofibrous membranes - Preparation of PU gradient laminated nano-fibrous membranes - Prepration of MNO2/PU composite nanofibrous membranes - Characterization
- RESULTS AND DISCUSSION : Sound absorption performance of the PU laminated nanofibrous membranes - Sound absorption performance of the PU gradient laminated nanofibrous membranes - Sound absorption performance of the MnO2/PU composite nanofibrous membranes - Structure parameters of the MnO2/PU composite nanofibrous membranes |
| En ligne : |
https://drive.google.com/file/d/1tThJ8v10TS4X2CKtPHi6xixBIEla06wa/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40607 |
in MAN-MADE FIBERS INTERNATIONAL > Vol. 74, N° 1 (2024) . - p. 31-34
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PU nanofibrous membrane with gradient laminated structure for efficient sound absorption in MAN-MADE FIBERS INTERNATIONAL, Vol. 74, N° 1 (2024)
