▎ 摘　　要

Poly (vinylbutyral) (PVB) was synthesized by condensation of poly (vinylalcohol) (PVA) with butyraldehyde. Nanocomposites of PVB with graphene (0.1 to 0.6 wt%) were prepared via solution blending. The structure and properties of prepared compounds were characterized by FT-IR, X-ray diffraction (XRD), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) and tensile strength tester (TST). The prepared nanocomposites showed considerable thermal and mechanical properties than PVB and showed good toughness and flexibility.