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Sound absorption coefficient for Polypropylene Plastic

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AllenMueller

AllenMueller

Mechanical
Joined
Apr 7, 2003
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Does any one know a sound absorption coefficient for polypropylene plastic? I'm just looking for an estimate so any help would be great. Thanks in advance
 
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Hi,

In what form is your plastic? in sheat, foam, loose microballs? To have any absorption properties, your product has to be foam with open cells.

cheers,
OkdB
 
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The sound absorption coefficient of plastic materials is also frequency dependent.
 
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