Eco Factor: Strong biodegradable foam made from milk and clay.
Until now, we have seen harmful form being used for packaging, insulation or in furniture cushions, but here is an international team of scientists who wish to give the world a green alternative. The researchers have recently developed a biodegradable foam using clay and casein. Casein is a naturally-occurring protein in cow’s milk that has already been in some adhesives and paper coatings.
But, casein is water-soluble and also lacks strength. So, the team had added clay and a biocompatible agent called glyceraldehyde to gives the casein the needed water resistance and strength by cross-linking its molecules together. This mixture then freeze-dried to create an aerogel, which is then cured in an oven for added strength. This foam is claimed to be perfect to suit commercial applications.
Via: Gizmag
