What are the characteristics of aerogel insulation materials?
Release time:
2024-07-26
With the development of nanotechnology, the research on nanomaterials at home and abroad is heating up, and the research on nanoporous aerogel insulation materials is also moving towards practicality and industrialization.
1. With the development of nanotechnology, the research on nanomaterials at home and abroad is heating up, and the research on nanoporous aerogel insulation materials is also moving towards practicality and industrialization. Aerogel is a kind of lightweight nano-solid material, which is composed of nano-porous network structure composed of nano-scale ultrafine particles, and the pores of the network are filled with gaseous dispersion medium. The porosity of aerogels is as high as 80% ~ 99.8, and the density can be as low as 0.003 g/cm. Due to its translucent color and ultra-light weight, aerogels are sometimes referred to as "solid smoke" or "frozen smoke". Aerogels have unique properties, their nano-pore size can significantly reduce the thermal conduction and thermal convection of gas molecules, and their elongated nano-skeleton particles can significantly reduce the thermal conduction in the solid state. Aerogel has extremely low thermal conductivity (lower thermal conductivity than air at room temperature) and low density, making it an ideal lightweight thermal insulation material.
2. At present, the aerogel insulation materials reported at home and abroad mainly include silica aerogel, zirconia aerogel, alumina aerogel and silica carbon oxygen gel, among which nanoporous silica aerogel is widely studied. Silica aerogel is a nano-porous solid material with a three-dimensional network structure, which is composed of nano-silica particles connected with each other.
Previous article
Next article
Related News
Aerogel fire retardant coating
2024-07-26
Aerogel adsorption performance is good?
2024-07-26