It is well known that epoxidized natural rubber (ENR) is amodified rubber prepared by the epoxidized reaction of naturalrubber (NR) in peracid conditions [2,3]. ENR possesses some newproperties except the normal characteristics of NR, such as oil resis-tance, gas tightness [4,5], low rolling resistance and high wet skidresistance. These properties are useful in tires and other rubberproducts. It was shown that the comprehensive properties of silica-reinforced vulcanizate can be substantially improved by addingENR as a compatilizer [6]. In addition, ENR can be applied in com-posites reinforced with other fillers, such as organoclay [7,8] and