Research Article
Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials
Table 1
Comparison of sound absorption performance of PB and FPB samples.
| Sample | Thickness, (mm) | Film bubbles diameter, (mm) | Porosity, | Average sound absorption coefficient, | Resonance sound absorption frequency, (Hz) | Starting frequency, (Hz) |
| PB | 30 | 10 | 0.980 | 0.75 | 968 | 408 | FPB | 30 | 10 | 0.980 | 0.84 | 1464 | 544 |
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