The largest aerogel company in China.

Li Guangwu, chairman of Hongda Technology Company, said that Hongda Technology has produced high-quality aerogels by using the original low-cost vacuum drying technology, which has reduced the investment in production equipment with an annual output of 100 cubic meter of aerogels from 50 million yuan to 2 million yuan, and the product price has dropped by 80%, which is of great significance for the rapid popularization of aerogels as a new material in China.

Aerogel, as the lightest solid in the world, has been selected into Guinness World Records. A new type of aerogel developed by NASA, with a density of only 3 mg per cubic centimeter, has been officially selected as the "lowest density solid in the world" in the Guinness Book of World Records.

A few days ago, a large-scale aerogel industrialization factory with an annual production capacity of over 1 1,000 cubic meters was officially completed in Xinzhou District, Wuhan. It will become the largest aerogel manufacturer in China, accounting for about 1/8 of the global production capacity, thus rewriting the situation that this field has been dominated by foreign companies for a long time.

Aerogel is the lightest solid material with the lowest thermal conductivity in the physical world, which is widely used in aerospace, energy conservation and environmental protection, national defense and military industry, petrochemical industry, rail transit and other fields, and is a new material that countries are competing to invest in research and development.

Aerogel is a kind of nano-porous solid material formed by sol-gel method, and the liquid phase in gel is replaced by gas in a certain drying way. Such as gelatin, gum Arabic, silica gel, hair, nails, etc. Aerogels also have the properties of gels, that is, swelling, thixotropy and separability.

Aerogel is the lightest solid in the world.

Definition:

Aerogel is the lowest density solid substance in the world. The density is 3 kilograms per cubic meter. The common aerogel is silicon aerogel, which was first made in 193 1 year by American scientist Kistler because he bet with friends. There are many kinds of aerogels, including silicon, carbon, sulfur, metal oxides, metals and so on. Aerogel is a combination word, in which Aero is an adjective, which means flying, and gel is obviously gel. Literally means flying gel. As long as the gel of any substance can be dried to remove the internal solvent, the shape can remain basically unchanged, and the product has high porosity and low density, it can be called aerogel.

Because of its extremely low density, the lightest aerogel is only 0. 16 mg per cubic centimeter, which is slightly lower than the density of air, so it is also called "frozen smoke" or "blue smoke". Because the particles inside are very small (nano-scale), visible light scatters less (Rayleigh scattering) when it passes through, just like sunlight passes through the air. So it looks as blue as the sky (if it is not doped with other things), and it looks a little red just by looking at it. The sky is blue, while the evening sky is red. Because aerogel is more than 80% air, the heat insulation effect is very good. An inch thick aerogel is equivalent to 20 to 30 pieces of ordinary glass. Even if aerogels are placed between roses and flames, roses will remain intact. Aerogels are also used in space exploration, such as the Russian space station "Peace" and the American Mars Pathfinder. Aerogels are also used as detectors of cherenkov effect in particle physics experiments. A particle discriminator named Aerogel Cherenkov Counter (ACC) located in Belle experimental detector of B meson factory, a research institute of high energy accelerator, is the latest application example. This detector takes advantage of the low refractive index between liquid and gas, as well as its high transmittance and solid state, which is superior to the traditional method of using low-temperature liquid or high-pressure air. At the same time, its lightweight is also one of the advantages.