What material is aerogel felt made of
Jul 30,2025
Aerogel felt is a kind of material with excellent thermal insulation performance, which is composed of magnesium silicate and other materials. The porosity of aerogel felt is more than 90%, which means that only 10% of its volume is solid material, and the rest is air. This structure makes the aerogel felt have extremely low thermal conductivity and good thermal insulation effect.
The preparation process of aerogel felt includes the following steps: first, dissolve magnesium silicate and other raw materials in water to form a sol; Then, under certain process conditions (such as supercritical drying), the water in the sol evaporates, leaving behind a porous solid material; Finally, the solid material is compressed and molded to obtain the aerogel felt.
Aerogel felt has been widely used in construction, chemical industry, electric power and other fields due to its excellent thermal insulation performance. For example, in the field of construction, aerogel felt can be used as thermal insulation material for walls, roofs and other parts, effectively reducing the energy consumption of buildings; In the chemical industry, aerogel felt can be used to store and transport cryogenic liquids or gases to prevent temperature loss; In the field of electric power, aerogel felt can be used as insulation materials for transformers, motors and other equipment to improve the safety performance of equipment.
However, there are also some problems with aerogel felt. Firstly, its high production cost limits its promotion in large-scale applications; Secondly, the strength of aerogel felt is low, and it is vulnerable to mechanical damage; Finally, the moisture absorption of aerogel felt is strong, which may affect its thermal insulation performance. Therefore, how to reduce the production cost of aerogel felt and improve its strength and moisture resistance is an important direction of current research.
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