▎ 摘　　要

Alkylated graphene oxide (MGO) was rapidly prepared by a reverse extraction technology in aqueous solution using amphoteric surfactants (LAO). The MGO has an excellent lipophilicity and stability in the air atmosphere. After being incorporated in high-density polyethylene (HDPE) by solution compounding, the HDPE/MGO composites exhibited an obvious enhancement in comprehensive properties of composites, relying on the uniform dispersion and the strong interfacial interaction between MGO and HDPE. The typical -and abnormal behaviors of the HDPE/MGO in Mechanical and physical properties are systematically analyzed and, discussed. MOreciVer, it is found that the critical intensity ratio of ICH2/IC=c/c-c in Raman spectrum corresponding to the electric percolation threshold of HDPE/MGO is about 1, which is still well established in PP/MGO composites.