Table 5. Viscoelastic Properties of Vulcanizates

Compounds NR / CB NR / BR / CB ENR-25 / BR / Silica
Ref. NB20 NB30 EB20 EB30
Tg(°C) -52.8 -55.5 -56.1 -34.4 -34.55
Peak of tan δ 0.953 0.939 0.823 0.943 0.836
E” at 0°C (MPa) 4.01 3.84 3.04 22.81 17.38
Tan δ at 60°C 0.114 0.109 0.110 0.067 0.063