Effect of modified nanographene oxide loading on the swelling and compression set behavior of EPDM/SBR nano-composites

AbstractNanographene 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.