The definition of the phase angle is the time dependence of the shear deformation and the received torque-signal. Based on the trend of the phase angle a conclusion about the damping behaviour of the compound can be given (the test here at a completely vulcanized compound).
The Visco-Elastograph (VE) or Rubber Process Analyzer (RPA) enables the option of an amplitude sweep of a non vulcanized sample...
The Payne-effect describes the alteration in the polymer properties, which are caused of mechanical stress...
