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<strong>Influences of Various Parameters on Sound Absorption Properties of Vetiver Grass Fiber-based Developed Composite Material</strong>

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Title Statement <strong>Influences of Various Parameters on Sound Absorption Properties of Vetiver Grass Fiber-based Developed Composite Material</strong>
 
Added Entry - Uncontrolled Name Meena, Kuldeep ; CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi- 110012, India
Singh, Mahavir ; CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi- 110012, India
Soni, Kirti ; CSIR-Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal-462 026 (M.P.) India
Nair, Anjali S; CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi- 110012, India
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Uncontrolled Index Term Noise reduction coefficient; Reverberation chamber; Sound absorption coefficient; Vetiver grass fibers
 
Summary, etc. Recently, the trend of natural fibers based eco-friendly materials utilization in the field of acoustic application has been growing rapidly in place of traditional synthetic materials to counter environmental issues, due to their cheap processing cost and other several advantages. In this work, sound absorption and thermal insulation properties of the vetiver grass (Chrysopogon zizanioides) based material have been investigated. Efforts have been carried out in developing porous vetiver grass fibers based composite material. The developed samples tested for the sound absorption coefficient (alpha) over a wide range of frequencies (100 Hz – 4000 Hz) by the reverberation chamber method as per IS 8225-1987/ISO 354- 2003/ASTM 423-909-19 and noise reduction coefficient (NRC) also been calculated. The experimental outcome proved that vetiver grass-based manufactured material has comparable sound absorption to already developed traditional synthetic materials. Further, two different bulk densities, thickness and fibre lengths-based samples were developed and their sound absorption acoustic performances were evaluated to see the influences of these parameters on sound absorption characteristics. Apart from these, some required physical properties as per application requirements were also discussed. However, in this study major focus has been done on acoustical properties.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2022-05-10 10:37:11
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/58193
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 60, ##issue.no## 5 (2022): Indian Journal of Pure & Applied Physics
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/58193/465589422
http://op.niscair.res.in/index.php/IJPAP/article/download/58193/465589423
http://op.niscair.res.in/index.php/IJPAP/article/download/58193/465589425
http://op.niscair.res.in/index.php/IJPAP/article/download/58193/465589426
 
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