▎ 摘　　要

In this work, an amino-terminated polyether (ATP) was synthesized and used for the functionalization of GO to obtain an amino-terminal polyether-functionalized graphene oxide (FGO). The structure of FGO was characterized by FTIR, Raman, XPS, XRD, AFM, SEM and TGA. And then the FGO was incorporated into waterborne epoxy resin (WEP) to prepare FGO/WEP composites. The SEM results revealed that such amino-terminal polyether functionalization can significantly improve the interfacial interaction between GO and the WEP matrix. The tensile test showed that the Young's modulus and tensile strength of FGO/WEP composites were much higher than that of WEP and GO/WEP composites. In particular, the 0.1 wt% FGO/WEP nanocomposite exhibited increases of 56% and 83% in tensile strength and Young's modulus as compared to WEP. In addition, the initial thermal decomposition temperature (T-d) of the 0.1 wt% FGO/WEP composite was increased by 42 degrees C compared with pure WEP. Furthermore, the FGO/WEP composites showed lower water absorption and higher water contact angles, indicated that the addition of FGO can significantly improve the hydrophobicity of WEP.