Investigation Into the Tg of Foams

This application note describes an experiment on a polyurethane foam. The sample was investigated in compression mode of the PerkinElmer® DMA 8000 as it is relatively soft. The Tg was observed in the modulus and tan δ data. The glass transition of polyurethane is especially important, depending on its usage, as in normal applications like packaging or furnishings it needs to be in its rubbery state to provide the desired characteristics.