2016
DOI: 10.15376/biores.11.2.4212-4225
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Windmill Palm Fiber/Polyvinyl Alcohol Coated Nonwoven Mats with Sound Absorption Characteristics

Abstract: Windmill palm single fibers (WPSFs) and fiber bundles (WPFBs) were extracted from a windmill sheath mesh. For the palm fiber acoustic application, WPSFs/WPFBs nonwoven materials and windmill palm fiber (WPF)/polyvinyl alcohol (PVA) coated nonwoven mats were developed. The effects of conditions such as the thickness and surface density of the materials and the concentration of PVA were studied. The sound absorption coefficients of all of the samples were measured using an impedance tube instrument. The statisti… Show more

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Cited by 17 publications
(9 citation statements)
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“…In addition, the nanoscale holes formed by the acetylation treatment increased the size of the space available for the transfer of sound and increased the roughness of the fiber-cell wall 29 . Owing to the viscous damping and thermal loss caused by their complicated pore structures, the nonwoven fibrous fabrics demonstrate superior sound absorption capability 34 , 35 .…”
Section: Discussionmentioning
confidence: 99%
“…In addition, the nanoscale holes formed by the acetylation treatment increased the size of the space available for the transfer of sound and increased the roughness of the fiber-cell wall 29 . Owing to the viscous damping and thermal loss caused by their complicated pore structures, the nonwoven fibrous fabrics demonstrate superior sound absorption capability 34 , 35 .…”
Section: Discussionmentioning
confidence: 99%
“…In order to bind the fibers together and form a composite, polyvinyl alcohol-PVA (Sigma-Aldrich) was utilized. PVA is a polymeric chemical binder with high solubility in water and is known to be a biodegradable material reportedly used as natural fiber binder in previous studies [32].
Fig. 1Locations of date palm cultivation in Iran.
…”
Section: Methodsmentioning
confidence: 99%
“…"Carbon-coated" Basalt fiber fabric was prepared via thermal decomposition of a PVA coating applied to the Basalt fabric. The basics for the process for applying a thin, uniform fiber coating were based on thin film/membrane formation descriptions in the literature [22,23]. In preparation for PVA coating the factory supplied silane finish was first removed via thermal treatment in air, as described in the previous section.…”
Section: Basalt Fabric Preparationmentioning
confidence: 99%