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Become an aerogel of knowledge points, why is it so hot?
2023-11-30       Source:尤特森

How to understand aerogel more deeply and comprehensively? This article summarizes the development history, advantages, and applications of aerogel in petrochemical and rail transit fields for your reference.

成为考公考研人知识点的气凝胶,为什么这么火?

How hot is aerogel?

Recently, Sen Xiaobian published a video about the "aerogel preparation process" on a social platform, which caused some candidates to punch in the comment area of the postgraduate entrance exam.

It seems that the wind of aerogel not only blows into the market of thermal insulation materials, but also becomes a knowledge point that candidates need to learn and research.

In fact, from the perspective of various national policies, "green" and "energy saving" are the key words in recent years, for example, a fresh point, is the Hangzhou Asian Games held a few months ago, whether it is architectural design or in the use of materials, it fully demonstrates the demand for green, energy saving and environmental protection.

Aerogel is meeting the needs of the dual-carbon policy, in line with the current trend of energy conservation and emission reduction. More importantly, it meets the fire prevention, heat preservation, heat insulation and other properties of other thermal insulation materials, and even gets better thermal insulation effect because of its own special structure.

In October this year, Xiaobian opened a series of articles on "Aerogel topics" in this public number. Now, we will make a brief summary of the topic content. If you are interested in some of the content, you can click the following jump link to view the full text.

Two, in-depth understanding of aerogel with Xiaobian

1, aerogels development history - four industrialization

Aerogel began its first industrialization process in the 1940s, and the third industrialization began its commercial prototype in the 1980s. Nowadays, we are experiencing the fourth industrialization of aerogel, and the aerogel market is in a stage of increasing maturity and popularity.

2. Several major factors in the development of aerogel in recent years

There are many factors driving the development of aerogel, and we have summarized four reasons: policy, standard specifications, technology and demand.

3, several forms of aerogel composite products

Aerogel matrix material itself has low strength and high brittleness, and composite with higher strength and toughness materials can improve the strength of the whole material system and expand more application fields. The existing aerogel composite products have felt, particles, coatings and other forms, which meet the needs of fire prevention and heat insulation in many fields.

4. Advantages of aerogel

High specific surface area, high porosity, nanoscale pores, low density and other special microstructure characteristics, so that aerogel has stable chemical properties, low thermal conductivity, strong adsorption force, wide use temperature range, long service life and other excellent properties.

5. Aerogel application -- Architecture

In the field of construction, aerogel is also a big trend. After composite products such as aerogel coatings and aerogel felt have been proved to be feasible in building thermal insulation, more mature products, construction technologies and cases have been developed.

6. Aerogel application -- Rail Transit

According to the data, the proportion of aerogel in the downstream demand market in 2023 will increase by at least 13% in the transportation field. Due to its excellent thermal insulation and sound insulation properties, aerogel composite products are widely used in automobile fire insulation and noise reduction layer, battery pack fire protection and other scenarios.

7. Application of aerogel -- Petrochemical industry

There are already a number of domestic petroleum and petrochemical enterprises using aerogel to act on the insulation of pipelines, such as Sinopec, petrochina and other leading enterprises.

8, aerogels application - Industrial insulation

Industrial pipelines carry a variety of temperatures and media, and excellent thermal insulation can effectively reduce heat loss, reduce energy consumption, and improve operation efficiency. The thermal insulation effect of aerogels is 2-5 times that of traditional thermal insulation materials, and the service life is also longer.

Iii. Summary

This is the end of this aerogels topic, this summary is intended to provide readers with a reading guide. However, there is still much room for discussion on the advantages, applications and development status of aerogel. As a new material that has attracted much attention, aerogel naturally needs a certain amount of time to precipitate before it can be accepted and promoted by the market.

In the future, Xiaobian will continue to provide you with high-quality aerogel related products and content, and witness the development of aerogel with you! We also welcome you to contact us or ask more questions about aerogel.