Research Article
Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials
Table 3
Performance comparison of PB and FPB structure.
| ā | Structure | Ways to dissipate sound energy | Morphology of resonance absorption peak |
| PB | Multilayer film bubbles | Film vibration cavity resonance friction between sound waves and the film surface. | Single peak | FPB | Random filling and squeezing of bubbles | Film vibration cavity resonance friction between sound waves and the film surface friction between the films. | Complex and multipeaks |
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