Shape Memory Behaviour of Waterborne Polyurethane-Based Aerogel

In this work, shape memory behaviour of waterborne polyurethane-based aerogel was investigated using dynamic mechanical analysis technique. The porosity and pore-size distribution of polyurethane aerogel also determined by a mercury porosimetry test. The results showed the prepared aerogel had 81% porosity with average pore diameter around 10 nm, also a shape fixing ratio and shape recovery ratio of 98% and 48%, respectively.