Aerogel material is a dispersing medium for the gel material gas by polymer molecules or colloidal particles accumulate each other to form a network structure of the nano-porous solid materials. The size of the pores in the material is on the order of nanometers. The porosity is as high as 80-99.8%, and the typical size of the hole is 1-100 nm, also the specific surface area is 200-1000 m2 / g, and the aerogel material density can be as low as 3 kg / m3. It has applied for the "lightest solid in the world" in the Guinness Book of World Records.
