▎ 摘　　要

The surface energy and damping properties of graphene oxide (G-O)/polymer composites were reported for the first time. G-O/ethylene-propylene-diene rubber (EPDM)/petroleum resin (PR) composites were prepared by the combination of solution-blending and two-roll mill mixing. SEM results demonstrate that G-O nanosheets were dispersed homogeneously in EPDM and EPDM/PR blends. Such good dispersion was preliminarily attributed to the matched surface energy as well as low interfacial energy of EPDM and G-O, which were determined by contact angle tests. The addition of 0.5 wt% G-O nanosheets increased the tensile modulus, tensile strength and elongation at the break of EPDM by more than 130%, 50% and 30%, respectively. G-O nanosheets containing composites were novel in improving the damping properties of EPDM(/PR). The thermogravimetric analysis tests show that G-O slightly changed the thermal stability of EPDM(/PR).