Accelerators is an organic substance, functioning in speeding up rubber vulcanization with just a small amount.
The objective and role of accelerators used in rubber recipe are of vital importance:
Reduce the temperature of vulcanization (reduce the quantity of heat needed for vulcanization)
Make vulcanized rubber have web structure with uniform distribution (increase physio- mechanical properties of the products)
However, the choice accelerators for vulcanization of rubber compound has to satisfy the following:
Do not create self vulcanization in processing stages.
Has big optimized vulcanization duration (vulcanization period is the time in which many functions and properties of the products are changed least).
Has lateness activation to ensure uniform vulcanization from inner to outer of products.