Cure characteristics, which are scorch time, cure
time and minimum torque of the rubber compound
were determined at 1501C with an oscillating disk
rheometer (ODR). About 10 g of rubber compound
were used with a 11 arc. The cure time (t90) used for
preparation of the cured samples was the time at
which the rheometer torque increased to 90% of the
total torque change on the cure curve