2.2. Compounding
Basic subsidiary material was used for the compounding ratio in
the FKM/HNBR blend according to the blend ratio at initial
compounding (Table 1), and a reinforcing agent (VN2) was used to
increase the basic properties of c and d in the first compounded
samples. Compatibilizer (KBM503) was used to enhance the blend
effect of FKM (Table 2).