Nissan’s New Sound-Deadening Material

Nissan showed a new lightweight soundproofing material at CES, which they said can help make car cabins quieter while improving energy efficiency. Unlike traditional sound-deadening materials, this new material uses two layers of lightweight plastic with a honeycomb-like structure in between. The honeycomb’s air pockets trap low-frequency vibrations (500 Hz to 1,200 Hz), preventing most…
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