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IPFS News Link • Building and Construction Materials

World's lightest sound insulator could radically reduce jet engine noise

• https://newatlas.com by Loz Blain

You might not think weight is that much of a factor with acoustic foams, but to put this aerogel's density in context, compare it to a conventional polyester urethane sound absorber like Kinetics KUA, which was "developed to absorb maximum acoustical energy using minimum weight and thickness" with a density of 32 kg/m3 (2 lb/ft3). So in a given application, this new "graphene oxide-polyvinyl alcohol aerogel," squeezed into a Nomex honeycomb, would weigh less than one-fifteenth of an equivalent traditional acoustic foam installation.


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