Mixing and cure assessment
The mixing and compounding of chitosan with STR 5L,
ENR-25, SBR and the other ingredients, as shown in Table 1,
were performed using a laboratory sized two-roll mill
model XK-160. The curing characteristics of the compounds
were determined with a Monsanto Rheometer MDR 2000
according to ISO 3417 at 150 C. The compounds were later
compression moulded at 150 C according to the respective
t90 values.