Aerogel is different from the "glue" in our traditional thinking. It is a form of solid matter. At present, the lighter silicon aerogel has a density of only 3kg/m3. Because of its extremely low density, it is also called "frozen". Smoke" or "blue smoke", which has won the title of "lightest solid in the world" in the Guinness Book of Records. Since more than 80% of the aerogel is air, it has a very good thermal insulation effect. One inch thick aerogel is equivalent to the thermal insulation function of 20 to 30 pieces of ordinary glass. Even if the aerogel was placed between the rose and the flame, the rose would remain intact. With the improvement of building energy-saving requirements, enterprises are forced to make technological innovations in traditional pipeline insulation materials or develop new and efficient insulation materials. As a better pipeline insulation material recognized by the world, aerogel has set off a scene in the field of building energy-saving. Brand new change.

As far as the current typical building envelope is concerned, the heat loss through doors and windows accounts for about 40% to 50% of the total heat loss of the building, and with the improvement of people's living environment, the area of ​​doors and windows will continue to increase, the application of energy-saving glass. It will play an important role in the energy saving of the whole building. Aerogel energy-saving glass has many advantages over traditional energy-saving glass such as vacuum glass and laminated glass.

The scientists replaced the three-layer argon-filled insulating glass with the vacuum aerogel glass prepared by simulation and installed them on the doors and windows of the building. The simulation example is a residential house in the Danish climate, two of which meet the Danish thermal insulation building standard, and the other two meet the Danish energy-saving building standard (house heating energy consumption <15kwh/m2/a). The energy-saving performance of the two glazings was compared by calculating the annual heating energy consumption of the house. Compared with insulating glass aerogel glass, the annual energy saving of ordinary residential houses is 1180kwh/a, about 19%, while in energy-saving houses, this figure is 700kwh/a, accounting for 34% of the total energy consumption. Vacuum aerogel glass is not only more energy efficient but also has a very good visual effect.