Summary
The characterization of car tire rubber is demonstrated in this application
note. Samples were taken from various places for a single car tire. The
glass transition temperature is shown to vary depending on where the
material was taken from the tire. Being a rubber, the modulus and also
the damping properties change dramatically on passing from the glassy
to the rubbery state. The different properties corresponding to different
parts of the tire demonstrate the different materials that the tire is made
from. It also shows where a mixture of materials is evident in one place.