Polyurethane Industry Articles & Information -
Smart Balloons for the Field Research Division (FRD) of NASA
The FRD designs and deploys a smart balloon that is suitable for hurricane research and other atmospheric measurement tasks. The current design of the helium and air bladders made from 1 mil polyurethane film uses polyurethane bladders because they offer very low permeability to helium without any special polymer treatment. They have the required flexibility and elasticity, and they do not exhibit chafing-induced wear.
The Center for the Polyurethanes Industry's Article on Using Polyurethane in Medical Devices