There is the lightest solid in the world called'Aerogel'.
Consisting of 99% air, this material is light and has excellent thermal insulation, so it is being studied as a future eco-friendly building material.
It will also be used for Mars migration.
[Aerogel is very light.
It doesn't shake even if you put it on the flower
[Aerogel does not get rid of fire.]
[If you place a candle on top and heat it, the candle on the airgel does not dissolve, but the candle on the glass completely dissolves.]
[Aerogel does not get wet with water.]
[Hyungho Park/Professor, Department of Materials Science and Engineering, Yonsei University: It is the lightest material among solid materials made by man.]
Aerogels are specially made by drying various mixtures in the form of gels
Then, a light material with only a solid structure is made.
[Hyung-ho Park/Professor, Department of Materials Science and Engineering, Yonsei University: If you make an aerogel from a glass material, it weighs only one-750th compared to its advantage.
It has 60 or 70 times lower thermal insulation properties than glass, i.e. heat transfer, and does not transmit sound more than glass.
(As insulation) If we use 40cm of styrofoam, we have less space that we can use due to its volume.
Airgels can exhibit such properties in a much smaller thickness than that.
(Aerogel) If a house without heat loss can be made, the money we can save with energy is 4 trillion won a year.]
Recently, a paper saying that waste plastic can be reused to make aerogels has attracted attention.
Currently, this aerogel is used in space suits, exploration robots, and blankets, but it is said that it is likely to be used in future migration projects to Mars.
It is not yet widely used because of its brittle nature, but it is being actively studied as a future new material all over the world.
[Hyung-ho Park/Professor, Department of Materials Science and Engineering, Yonsei University: (Hwaseong) Even if the temperature changes to very cold in the evening and very hot in the day, the air is maintained regardless of whether it is cold or hot outside.] In the
summer heat, the steamer uses a lot of energy. Researchers are looking forward to the use of airgel as a substitute for glass in buildings.
▶ [Newthing Ep.02] Next-generation eco-friendly material that Elon Musk is paying attention to