2.3.3. Dynamical Mechanical Properties

Dynamical mechanical analysis (DMA) of the vulcanized rubber samples measuring *t* = 1 mm in thickness and *w* = 6 mm in width was realized on the Mettler Toledo DMA 1 equipment (Columbus, Ohio, USA) in tensile mode. Firstly, the temperature sweep was measured in a temperature range of −80 ◦C to +20 ◦C, with a temperature rate of 2 ◦C/min, at a constant deformation rate of 5 μm and a frequency of 20 Hz. Secondly, the frequency sweep was studied at a constant deformation rate of 10 μm and at 25 ◦C, with varying frequency ranging from 0 to 250 Hz. Finally, the strain sweep was studied at a constant frequency of 20 Hz and at 25 ◦C, with varying strain ranging from 0 to 200 μm. Three measurements were taken for each compound.

The dynamic shear properties were measured on the Premier RPA rubber process analyzer from Alpha Technology (Hudson, Ohio, USA). Rubber compounds were firstly cured for *t*90 at 160 ◦C. The rubber sample was subsequently cooled down to 60 ◦C (cooling rate of 30 ◦C/min), followed by

temperature stabilization for 3 min. Finally, the sample was deformed from 0.1% to 200% at frequency *f* = 1 Hz. Again, three measurements were performed for each compound.
