Materiali Termoisolanti

Thermal Expansion of PUR Foams

PUR foam exhibits an insignificant level of anisotropic behavior which is shown by the dilatometer measurement.

The Coefficiente di Espansione Termica Lineare (CLTE/CTE)The coefficient of linear thermal expansion (CLTE) describes the length change of a material as a function of the temperature.CTE values are nearly the same in the y- and z-directions between -160°C and 100°C. An additional measurement was performed in each direction; the results also demonstrate the excellent reproducibility of the dilatometer DIL 402 C.