Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Structure</td><td class="align_center">Ways to dissipate sound energy</td><td class="align_center">Morphology of resonance absorption peak</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">PB</td><td class="align_center">Multilayer film bubbles</td><td class="align_center">Film vibration cavity resonance friction between sound waves and the film surface.</td><td class="align_center">Single peak</td></tr><tr><td class="align_left">FPB</td><td class="align_center">Random filling and squeezing of bubbles</td><td class="align_center">Film vibration cavity resonance friction between sound waves and the film surface friction between the films.</td><td class="align_center">Complex and multipeaks</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Performance comparison of PB and FPB structure.</div>

Shock and Vibration

tab3

Table 3

Table 3: Study on Sound Absorption Properties of Polyvinyl Chloride (PVC) Film Multicavity Structure Materials 