Nanoclay is used to enhance the mechanical properties of ethylene-propylene-diene rubber (EPDM)/styrene-butadiene rubber (SBR) blends. Sulphur (S), dicumyl peroxide (P), and mixed systems (S + P) were used as crosslinking or vulcanizing agents for the EPDM/SBR nanocomposites. The experimental data of the stress–strain behavior of EPDM/SBR blends with different nanoclay loading have been determined through a tension test. Nonlinear mechanical behaviors of the rubbers are described by strain energy functions in order to assurance that rigid body motions play no role in the constitutive law. The mathematical model such as the Mooney-Rivlin model based on the existence of strain energy density functions depends on the right Cauchy-Green's deformation tensor or Green's strain tensor. The experimental data are fitted to the Mooney-Rivlin model in order to find the rubber material constants. These constants are used to find the crosslinking density. A comparison between the experimental stress–strain behavior and finite element analysis of a uniaxial tension test at different nanoclay loading is presented.

No abstract

No abstract

No abstract

Nanographene oxide (GO) is used to improve the physical properties of blends of ethylene-propylene-diene monomer (EPDM) rubber/styrene-butadiene rubber (SBR) nano-composites compared with modified nanographene oxide (mGO). The modified Hummers method was used to develop the GO. GO was treated using two types of surface modifiers, 4,4'-diphenylmethane diisocyanate (MDI) and 3-Aminopropyltriethoxysilane coupling agent (KH550), and then incorporated into an EPDM/SBR rubber matrix at different concentrations, processed with an open-mill mixer, and vulcanised. The influence of mGO concentration on EPDM/SBR nanocomposites' swelling and compression set behaviour was investigated in this paper. Comparative analysis was done on the outcomes of various compositions for EPDM/SBR-GO and EPDM/SBR-mGO with nanofiller at 0, 2, 4, 6, 8 and 10 phr. In both GO-filled nanocomposites and mGO-filled nanocomposites, the increase in mGO loading is associated with a significant reduction in mole percent uptake while the compression set increases, according to the current study. In mGO-filled nanocomposites, this phenomenon is more evident than in GO-filled nanocomposites. The effect of the conditioning environment on the characteristics under investigation is clearly distinguished in this study. Swelling resistance and compression set are improved in nanocomposites containing KH550 modified GO.