At present, the aerogel industry as a whole is in the growth stage of its life cycle, and many fields are booming. Energy, construction, transportation, chemical industry and other fields develop rapidly, and will continue to strengthen the penetration of various fields with the maturity of technology and awareness; Relevant data show that it is expected that the proportion of transportation in the downstream demand market for aerogel will increase to 13% in 2023. Why is aerogel a big trend?

China's "Tian Wen 1" Mars probe has used a total of two aerogel materials, which are used to deal with "extreme heat" and "extreme cold". Zhang Hao, deputy director of 306 Institute of China Aerospace Science and Industry, said that the "extremely hot" test appeared in the Mars landing stage, the heat generated by the landing engine makes the surrounding temperature more than 1000 ° C, the heat insulation component can block the high temperature, only about 10mm of the material can keep the temperature behind it in an acceptable range during the entire landing process. The "extreme cold" test appeared in the Mars patrol stage, the designer laid a large area of aerogel plate on the surface of the rover, which can ensure the normal operation of the rover in the environment of -130 ° C.
Aerogel appears in the national important mission, can it be used in the equipment of daily life? There is no doubt that aerogel composite products have begun to be used in construction, transportation and other fields. Based on its good thermal insulation and sound insulation performance, aerogel can be used as a fire insulation and noise reduction layer for automobiles, fire and waterproof insulation boxes for large capacity battery packs, fire insulation and fire prevention layer for special transport vehicles such as hazardous chemicals transport vehicles, and fire insulation and noise reduction and fire protection layer for high-speed railway subway car bodies.
It is self-evident that the heat insulation and fire protection performance of aerogel plays an important role in the safety of vehicles such as automobiles. For example, the flame retardant lining of the car seat and the flame retardant lining of the body can effectively contain the spread of the fire, and the low smoke density characteristics can control the harm of the fire disaster as much as possible, greatly reduce the fire accident hazards, and protect the safety of passengers.
In addition to the role of interior materials for insulation and fire prevention mentioned above, aerogel has a major growth pole in the field of rail transit, that is, the safety of battery systems.

When the car battery outputs power for a long time, the chemical reaction in the battery for a long time will cause the battery body to heat significantly, and there is a risk of combustion and explosion. In order to achieve the effect of fire insulation, the traditional mandrel will use a plastic partition to separate the battery, but this will not only increase the weight, but also easily cause problems such as dissolution and fire of the partition when the battery is operated at high temperature. Aerogel composite product Aerogel felt has the characteristics of light weight and high heat insulation performance, which can not only keep the temperature relatively stable, but also reduce the load with the advantage of light weight. In the case of a fire accident caused by excessive temperature, it can also effectively delay the spread of the fire.
Power batteries are developing rapidly, and ternary lithium batteries account for the main share. It can be seen that under the promotion of factors such as the popularity of new energy vehicles and the improvement of safety requirements, rail transit will become an important growth pole of aerogel in the future, and more aerogel will continue to appear in high-speed rail, cars, buses, etc.