Research Article
Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials
Table 2
Comparison of sound absorption properties of four materials.
| | Sample | Thickness, (mm) | Average sound absorption coefficient, | Starting frequency, (Hz) |
| | PB | 30 | 0.75 | 408 | | FPB | 30 | 0.84 | 544 | | Melamine foam | 30 | 0.82 | 432 | | Polyurethane foam | 30 | 0.63 | 664 |
|
|
