As a new solid material with nano-porous structure, aerogel has excellent characteristics such as ultra-light, heat insulation, transparency, heat preservation and fire resistance.
Aerogel has a huge market in the field of energy saving and is an important part of the field of insulation in the future. However, since the current technical field has not yet completely broken through, it is used in application fields such as energy-saving doors and windows, pipe insulation, wall insulation, insulation coatings, concrete additives, etc. The application of this aspect is still in preliminary attempts, but its development potential is bound to move the hundreds of billions of market.
Let us take stock of the current domestic and foreign market aerogel application cases.
1. Aerogel Particles
They are mainly divided into hydrophobic and hydrophilic. This kind of particles is smaller than 1 micron. This realization method is relatively simple and has the possibility of industrialization. The thermal conductivity is about 0.009-0.012 and the density It is about 30-100KG/cubic. The specific surface area can reach 600 square/g.
2. Aerogel Rubber Felt
Through the composite of aerogel and fiber reinforced materials, a series of problems such as low mechanical strength, easy breakage, and poor high-temperature heat insulation of aerogel have been successfully solved.
3. Aerogel Glass
Aerogel glass has good heat preservation and heat insulation properties, and it is widely used in energy-saving doors and windows. However, the tensile strength of aerogel is very low and direct collisions should be avoided. At present, the application of aerogel on glass is mainly used Aerogel-coated glass panel or vacuum insulation interlayer.
4. Application of Aerogel in Construction Pipeline
Aerogel has the advantages of thermal insulation effect and hydrophobicity. It is an ideal pipe insulation material. In addition, because aerogel is an inorganic thermal insulation material, the net energy consumption per kilometer of high-temperature steam pipelines can save tens of millions of RMB in the use of 8a.
5. The Use of Aerogel in Wall Panels and Roofs
The thermal conductivity of aerogel is one third of that of polystyrene board, which is much lower than other building insulation materials. At the same time, the aerogel is an A1 grade inorganic insulation material. The density of aerogel is less than 100KG/m3, which is convenient for construction and reduce the weight of the entire building.
6. The Application of Aerogel in Coatings
Due to its thermal insulation effect, the temperature can complement the thermal insulation function. It can be used not only for external wall insulation, but also for building bottom insulation. At the same time, inorganic silicon industry is a good waterproof and anticorrosive material.
7. Aerogel As a Concrete Additive
When aerogel is added to concrete, the thermal conductivity of concrete will gradually decrease with the amount of aerogel added, but since the main component of aerogel is silica, high-strength silicic acid will be generated under alkaline conditions. The salt component, this way, will not only reduce the thermal conductivity, but also increase the strength and toughness.
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