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COMPARISON OF ULTRA - HIGH TEMPERATURE COMBUSTION TEST BETWEEN AEROGEL AND OTHER ORDINARY INSULATION

2021-12-07 16:45:50

China in the global high-tech field, absolutely leading the third technology, this thing is the aerogel. What is the aerogel? Popularity, it is a solid material, there are many of the gap, so its weight is very light, and the density is very low. This material was originally discovered in 1931, in Europe there are scientists developed. At that time the material used was silica, at the time the weight was so far less than the level achieved by modern technology, when people gave such a material from a name called solidified smoke. This material really enters people's horizons was in 2011. In 2011, the American team used nickel to produce an aerogel that, in a vacuum, had a mass of only 0.9 milligrams per cubic centimeter, much lighter than the same volume of air.
 
In 2012, the United Kingdom and Germany jointly developed a carbon as a material of an aerogel material, its density than the United States developed aerogel even lower. To reach only 0.18 milligrams per cubic centimeter weight, but also very strong, the stone is not broken, the second point is waterproof, 2013 China Zhejiang team with carbon material made of air gel, called carbon sponge, its density per cubic centimeter 0.16 mg, equivalent to 1/7 of the air density, and by the year 2015 it produced 0.12 milligrams per cubic centimeter of aerogel. Its use is also very broad, first of all in the field of aerospace, it can absorb interstellar dust, as well as insulation insulation in the use of insulation, the use of its characteristics to play in various fields.
 
SiO2 aerogel are obtained by combining amorphous silica and a substrate and drying in supercritical carbon dioxide fluids. It effectively reduces the high brittleness of the airgel itself and enhances the key bond structure between the substrate and the substrate. It can be widely used in the fields of building, petrochemical, pipeline and precision instruments.
 Aerogel has a strong adiabatic characteristics, the following we have to do a group of combustion experiments to see their temperature thermal conductivity comparison. First of all our alcohol torch temperature is about 1200 degrees, the thermometer tests their surface temperature.
 
We have the market common insulation materials to carry out experiments, there are melamine foam, the car with the temperature of the yarn, the ordinary foam board, construction rock wool, ordinary insulation materials, glass fiber, and our production of gas Gel plate.
 
1, melamine foam, 10 seconds the surface temperature reaches 90 degrees Celsius.
 
2, warm yarn quickly produce open flame, burned.
 
3, foam board contact that is burning, burned.
 
4, construction with rock wool, white, contact that is burning, burned.
 
5, glass fiber, 10 seconds the surface temperature reaches 90 degrees Celsius.
 
6, ordinary insulation felt, 20 seconds, the surface temperature of 70 degrees Celsius, resulting in pungent odor.
 
7, air-gel plate burning 5 minutes, the surface temperature is still 35 degrees Celsius, burning 10 minutes, the surface temperature of 42 degrees Celsius.
 
Of course, the aerobic effect of aerogel is very interesting, but also in this area is also widely used, when the aerogel into the substrate, can play a fire, insulation, insulation, noise and many other features, The future will have a big use.
 
Conclusion: Aerogel has stronger high-temperature resistance than other ordinary insulation materials.