20 Jan 2020
Materials are claimed to be lightweight and cost-competitive compared to conventional solutions available on the market
Las Vegas — Nissan has showcased a new lightweight, soundproofing material which it says can help make car cabins quieter while improving energy efficiency.
Unveiled during the at the Consumer Electronics Show (CES 2020) trade show in Las Vegas earlier this month, the technology uses a lattice structure and plastic film to control air vibrations.
The materials, said Nissan in a statement, limit the transmission of wide frequency band noise (500 to 1,200 hertz), such as road and engine noise.
Most soundproofing materials currently used to dampen road and engine noise consist mainly of heavy rubber board.
However, Nissan said its acoustic material weighs one-fourth as much while providing the same degree of sound isolation.
The carmaker also said that its material is cost competitive and in some cases is less expensive than conventional soundproofing materials on the market.
Nissan has been developing the technology since 2008. At the time, the material was used in high-sensitivity antennas used for electromagnetic wave research.
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