Low-density graphene-based aerogel can reduce aircraft engine noise up to 80%
Researchers at the University of Bath have developed a graphene oxide (GO)/polyvinyl alcohol (PVA) aerogel (GPA) weighing just 2.1 kg m-3—making it the lightest sound insulation ever manufactured. Over the 400–2500 Hz range, the reported average sound absorption coefficients are as high as 0.79, while the average sound transmission losses…
Low-density graphene-based aerogel can reduce aircraft engine noise up to 80%
2021-07-07 05:03