Aerogel powder refers to SiO₂ aerogel powder products with nanoporous structure. This product has the characteristics of high porosity, low density, high specific surface area, high pore volume, etc. It also has excellent thermal insulation performance, good sound insulation, strong adsorption, green environmental protection, flame retardant and hydrophobic properties, etc. It can be widely used in construction, industry and other fields.

Aerogel has a special three-dimensional network structure, and the pore size is smaller than the mean free path of air molecules. It can block all ways of heat transmission: heat conduction, heat convection and heat radiation, so it plays a good role in heat insulation.