Hydrogen Compatibility of Polymers for Fuel Cell Vehicles

So far, hydrogen compatibility of polymer materials was investigated, focusing on gaining insight in general degradation mechanisms. However, this is not yet sufficient for purposes safety and performance requirements, example, the automotive industry especially, corresponding advanced material development, which needs meaningful comprehensive data prospective long time intervals. Therefore, herein, applicability forced aging regimes suitability different analytical techniques clarification underlying mechanisms are focused on. The study analyzes behavior polyether ether ketone, (thermoplastic) polyurethane fluoroelastomer after prolonged atmosphere under pressure as it occurs fuel-cell vehicles. Material changes investigated by electron microscopy, thermogravimetry, differential scanning calorimetry, gas sorption measurements. Especially thermogravimetry turns out to indicate subtle that important indications choice.