Mode of operation / function

The movement of air molecules in the pores of an insulating material

Source: Cabot Aerogel GmbH

The transmission of heat through Aerogels is greatly reduced thanks to their very fine-grained nanostructures. The freedom of movement of gas molecules trapped in the pores is severely limited, as a result of which their ability to transfer heat is greatly reduced. This gives aerogels their unique thermal insulating characteristics.