Blends of natural rubber (NR) and ethylenepropylene
diene monomer (EPDM) have gained
much attention over the past three decades because
it is thought that, when properly blended, the NR/
EPDM blend could possess good physical properties
with adequately high aging and ozone resistance
[1–4]. Even though good ozone resistance could be
achieved easily in NR/EPDM blends, satisfactory
physical properties are difficult to attain due to the
cure incompatibility between NR and EPDM[5]. As
NR is highly unsaturated, it is chemically reactive.