Automotive Sound Absorption Material

DRIVE October 7, 2021
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There is provided a sound-absorbing material for a vehicle, capable of stably yielding desired sound absorption performance while reducing weight of the sound-absorbing material for a vehicle. The sound-absorbing material for a vehicle of the present invention has a multilayer structure, including: a core layer in which tubular cells are arranged in a plurality of rows; and an airflow-blocking resin film layer adhered to one surface of the core layer. The relationship between the Young's modulus E (MPa) of the airflow-blocking resin film layer and the surface density M (g/m) of the layer structure on the first airflow-blocking resin film layer side with respect to the core layer is 0.5

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