Advances in Acoustics and Vibration / 2017 / Article / Tab 2

Research Article

Corn Husk Fiber-Polyester Composites as Sound Absorber: Nonacoustical and Acoustical Properties

Table 2

Nonacoustical properties of samples.

SampleThickness (mm)Density (Kg⋅m3)Porosity
ε
Air-flow resistivity, R (Pa⋅s⋅m−2)Tortuosity,
σ

PF-E20640.50.647444,9801.272
PF-G20383.40.705329,3531.208
PF-H20304.10.724725,4241.190
PF-I20244.10.745721,5761.171
PF-K20198.00.758219,5681.160
PF-M20158.30.795414,4351.128

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