Natural fibers reinforced chrome shaving composites for sound absorption applications / D. Hemalatha in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 11 (11/2018)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIII, N° 11 (11/2018) . - p. 352-357 Titre : Natural fibers reinforced chrome shaving composites for sound absorption applications Type de document : texte imprimé Auteurs : D. Hemalatha, Auteur ; S. Kowsalya, Auteur ; N. Nishad Fathima ; S. Sowmya ; Jonnalagadda Raghava Rao Année de publication : 2018 Article en page(s) : p. 352-357 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chrome -- Recyclage Composites à fibres -- Moulage par compression Composites à fibres végétales -- Propriétés mécaniques Cuirs et peaux -- Déchets -- Recyclage Isolation acoustique Matériaux -- Propriétés acoustiques Polypropylène Résistance à la traction Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Chrome shavings, the solid wastes from tanneries, show disposal difficulties due to the presence of the heavy metal chromium. In this present study, we have prepared sound absorbing materials from chrome shavings by blending with suitable synthetic and natural polymers via compression molding technique. Polypropylene (PP), was chosen as a synthetic polymer to improve the blending and natural fibers such as cotton, jute and kapok have been chosen for their porous nature. The composites were prepared, and their morphology was examined using scanning electron microscopy. The sound absorption of the prepared composites has been measured using Impedance tube method. The results suggest that composites blended with polypropylene exhibit more than 90% sound absorption in the mid frequency range. This study shows that chrome shavings in combination with natural fibers can be used as good sound absorption materials. Thus, the proposed approach paves the way for utilization of a leather waste to reduce noise pollution. Note de contenu : - MATERIALS AND METHODS : Materials - Methods. Preparation of chrome shavings - polypropylene composites - Preparation of composites from chrome shavings polypropylene and natural fibers - Sound absorption measurements - Characterizations of sound absorbing materials - RESULTS AND DISCUSSIONS : Chrome shavings- polypropylene composites - Natural fibers- chrome shavings- polypropylene composites - Tensile strength of the composites - Sound absorption results of the chrome shavings and natural fibers reinforced chrome shavings En ligne : https://drive.google.com/file/d/1i3rWh4PzeBQ8UqRsFZIhCeqlhGJ99vNd/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31201 [article]

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