Epoxidized natural rubber tensile properties

They have studied the properties of NR-epoxidized natural rubber (ENR) blend nanocomposites also. Vulcanization kinetics of natural mbber-based nanocomposite was also smdied. The effect of different nanoclays on the properties of NR-based nanocomposite was studied. The tensile properties of different nanocomposites are shown in Figure 2.7 [33]. 

Silica reinforcement using the sol gel technique on epoxidized natural rubber 25 mol% (ENR 25) has been reported. ENR was first pre-ciued with 3-aminopropyltriethoxysilane (APS). APS was mixed into ENR and the ENR-APS mixture was cured at 180 °C to produce pre-ciued rubber sheets with tensile properties much lower than those of normally ciued rubber vulcanizates. The crosslinking of ENR utilizing the epoxy groups as crosslinking sites using amine functional groups catalysed by bisphenol A has been established. The ENR-APS network is shown in Scheme 7.2. 

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