A “multiwalled carbon nanotube (MCNT) aerogel” dubbed “frozen smoke” with a density of 4 mg/cm3 lost its world’s lightest material title in 2011 to a micro-lattice material with a density of 0.9 mg/cm3. Less than a year later, aerographite claimed the crown with its density of 0.18 mg/cm3.
I wonder how long it will take before we see this kind of graphene technology making its way into consumer products.The result is a material the team claims is very strong and extremely elastic, bouncing back after being compressed. It can also absorb up to 900 times its own weight in oil and do so quickly
http://www.gizmag.com/graphene-aerogel-worlds-lightest/26784/