▎ 摘　　要

Poplar leaves graphene (PLG) was synthesized from the poplar leaves. Modified poplar leaves graphene (M-PLG) was obtained by graphene treated with silane coupling agent gamma-aminopropyltriethoxysilane (KH550). The M-PLG-modified silicone rubber (methyl ethylene silicon rubber [MVQ]) composites were prepared by mechanical blending. The effects of M-PLG on the mechanical properties, thermal properties, and morphology structure of MVQ were investigated. The results showed that the carbon content and purity of the PLG were high. The M-PLG can be evenly dispersed into MVQ compared with the PLG, the mechanical properties of the M-PLG/MVQ composites were better than those of the PLG/MVQ when M-PLG content was 0.1 parts per hundred rubber (phr), the tensile strength and elongation at break are increased by 36.2% and 19.4% respectively, and wear resistance increased by 57.1%. The thermal stability of the M-PLG/MVQ was also better. This concept of combining PLG with MVQ demonstrated the potential of preparing novel green materials with excellent properties.