Thermo-mechanical and differential calorimetric study of the grapheme oxide impregnated EPDM rubber nanocomposites

S.S. Iqbal, N. Iqbal, A. Maqsood, T. Jamil
National University of Sciences and Technology (NUST), PK

Keywords: ethylene propylene diene monomer rubber, GO nanosheets, thermal conductivity, TG/DTA, DSC, mechanical properties


GO nanosheets were evenly dispersed in the EPDM rubber matrix using dispersion kneader and two roller mixing mill. The progressive incorporation of nanosheets into the polymer matrix has remarkably enhanced the thermal and mechanical performance of the nanocomposites. Thermal transport study reveals that the incorporation of GO nanosheets into the rubber matrix has effectively enhanced the thermal resistance of the fabricated composite specimens up to 95%. Thermal stability and endothermic capability of the fabricated composites are improved remarkably with the nanosheets introduction into the rubber matrix. DSC study illustrates the GO nanosheets incorporation into the base composite formulation has successfully augments the melting temperature and reduces the glass transition temperature of the developed composites. Ultimate tensile strength and Shore A rubber hardness of the rubber composites have been improved while elongation at break is reduced with increasing filler to matrix ratio due to the even dispersion, durable filler to matrix bonding, and excellent mechanical strength of GO nanosheets.