Aerographite
Aerographite was considered the lightest solid in the world with 0.2 milligrams per cubic centimeter (excluding air) from 2012 to 2013 , before it was undercut by the 12% lighter aerograph (graphene airgel) with 0.16 mg / cm³ density. Aerographite consists of a network of porous carbon tubes that are three-dimensionally fused into one another on the nano and micro level.
properties
Aerographite has a density of 0.2 kg / m³ (0.2 mg / cm³) (without air; with air approx. 1.493 kg / m³) and is (with air) around 75 times lighter than styrofoam . This makes it one of the lightest solids known. Because of its ability to absorb light rays almost completely, it is one of the “blackest” materials there is. It is also a good electrical conductor , water-repellent and very stable compared to other very light fabrics. It can be compressed by up to 95% and then pulled apart to its original shape.
literature
- Matthias Mecklenburg, Arnim Schuchardt, Yogendra Kumar Mishra, Sören Kaps, Rainer Adelung, Andriy Lotnyk, Lorenz Kienle, Karl Schulte: Aerographite: Ultra Lightweight, Flexible Nanowall, Carbon Microtube Material with Outstanding Mechanical Performance . In: Advanced Materials . 24, No. 26, 2012, pp. 3486-90. doi : 10.1002 / adma.201200491 . PMID 22688858 .