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Aerogel contains particles that are 2–5 nm in diameter. After the process of creating aerogel, it will contain a large amount of hydroxyl groups on the surface. The hydroxyl groups can cause a strong reaction when the aerogel is placed in water, causing it to catastrophically dissolve in the water.
Graphene aerogels have a Young's modulus on the order of 50 MPa. [7] They can be compressed elastically to strain values >50%. [6] The stiffness and compressibility of graphene aerogels can be attributed in part to the strong sp 2 bonding of graphene and the π-π interaction between carbon sheets.
Microlattices can also be 100 times stronger than regular polymers. [10] Metallic microlattices are characterized by very low densities, with the 2011 record of 0.9 mg/cm 3 being among the lowest values of any known solid. The previous record of 1.0 mg/cm 3 was held by silica aerogels, and aerographite is claimed to have a density of 0.2 mg/cm ...
Silbond produces chemicals that are used in the semiconductor industry as well as other chemicals that act as binders and are used in corrosion-resistant coatings, aerogel insulation and castings.
Cabot's aerogel enables an ultra-low thermal conductivity of 0.016 W/mK applied in very thin insulation thicknesses from 10 to 40 millimeters (R3.5 - R14).
Boron nitride aerogel is an aerogel made of highly porous boron nitride (BN). It typically consists of a mixture of deformed boron nitride nanotubes and nanosheets . It can have a density as low as 0.6 mg/cm 3 and a specific surface area as high as 1050 m 2 /g, and therefore has potential applications as an absorbent , catalyst support and gas ...
In 2002, aerogel held the Guinness World Record for the least dense (lightest) solid. [16] Aerogel is mostly air because its structure is like that of a highly vacuous sponge. The lightness and low density is due primarily to the large proportion of air within the solid and not the silicon construction materials. [17]
Smartwatches are a hot-ticket gift over the holidays, but a new study might have you rethink how you strap the device to your wrist in the future.
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