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Introduction of Aerogel

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Miraculous material that changes the world

Aerogel is currently known as a light solid material, because of its nanoporous structure (1~100nm), low density (1~500kg/m³), low dielectric constant (1.1~2.5), low thermal conductivity (0.013~0.025W/(m - K)), high porosity (80~99.8%), high surface area (200~1000m³/g), and so on. In mechanics, acoustics, thermology, optics and other aspects show a unique nature, in aerospace, military, transportation, communications, medical, building materials, electric power, metallurgy and many other fields have a wide range of applications and huge prospects, known as “change the world of the magic material”.

Silicon dioxide aerogel is so far good thermal insulation performance of the material, its pore size is lower than the average free range of air molecules at atmospheric pressure, so the air molecules in the pores of the aerogel is nearly static, thus avoiding the convective heat transfer of the air, and the aerogel's extremely low bulk density and the nano-network structure of the curved path also prevents the gaseous and solid-state heat conduction, which tends to be “infinitely many! The extremely low bulk density of aerogel and the curved path of nano network structure also prevent the heat conduction in gaseous and solid state, and the “infinite number” of void walls can reduce the heat radiation to low. These three aspects work together to block almost all the pathways of heat transfer, so that the aerogel to achieve other materials can not be compared to the thermal insulation effect, and even far lower than the static air at room temperature 0.025W/m-K thermal conductivity, to 0.013W/m-K or less.