Nano airgel felt has a wide range of uses, and local companies’ independent research and development capabilities continue to improve.

​​​​Nano airgel felt is a subdivided product of airgel felt, which refers to a thermal insulation material that combines nano airgel with inorganic fibers and is prepared in a supercritical state. Nano-airgel felt has the characteristics of good flame retardancy, long service life, good thermal insulation effect, and small heat loss after insulation. It is widely used in petrochemical industry, aerospace, transportation, construction engineering and other fields.

The main preparation methods of nano airgel felt include molding sintering method and sol-gel method. The molding and sintering method refers to using silica fume as the main raw material, using the molding and sintering method to change the nanopore network structure of the silica fume and process it into the required shape. The nano-airgel felt made by this method has better thermal insulation; sol-gel This method involves mixing raw materials under the action of a catalyst, and then going through processes such as gelling, aging, and drying to obtain finished products. This method has the advantages of good finished product quality and convenient operation, but the production cost is relatively high.

The main raw material of nano airgel felt is nano silica aerogel. Nanosilica aerogel, also known as ultrafine silica aerogel, refers to an aerogel with microscopic nanostructure. It has the characteristics of high porosity, low density, and high specific surface area. It is widely used in airgel felts and air condensation. It is widely used in products such as glued glass and aerogel panels. In recent years, driven by market demand, my country’s nano-silica airgel production capacity has continued to expand, providing favorable conditions for the development of the nano-airgel felt industry.

According to the “2023-2028 China Nano Airgel Felt Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center It shows that nano airgel felt has excellent performance and is widely used, with petrochemicals, aerospace, transportation, construction engineering, etc. as its end markets. In the field of aerospace, nano airgel felt can be used as the insulation layer of rocket engine gas pipelines; in the field of transportation, nano airgel felt can be used as an insulation material in light rail, high-speed rail and subway; in the field of construction engineering, Nano airgel felt can be used as wall insulation material. In the future, as the scope of downstream applications continues to expand, the development speed of the nano airgel felt industry will accelerate.

Dayin Xisheng, Huayang Co., Ltd., Alison Technology, Nano Technology, Aerospace Science and Industry, Anjia New Materials, etc. are the main players in my country’s nano airgel felt market. Aerospace Science and Industry is one of the earliest companies in my country to lay out the research and development and production track of nano-airgel felt. In July 2022, the Long March 5B Yao-3 carrier rocket carrying the Wentian experimental module was successfully launched. It adopted the Aerospace Science and Industry III The nano airgel felt independently developed by Institute 306 of the hospital is used as a thermal insulation protective material.

         Industry analysts said that nano airgel felt, as a new thermal insulation material, is widely used in many fields. In recent years, benefiting from strong market demand, Chinese companies have continued to increase investment in the research and development of nano-airgel felts. It is expected that in the future, as local companies continue to exert their efforts, the application scope of nano-airgel felt will be further expanded.