以DMF为分散剂、KI为催化剂，将环氧丙基接枝到GO表面制得功能化氧化石墨烯（FGO）。利用FT-IR、XRD、SEM对功能化前后样品的结构、表面形貌和元素组成进行了测试；利用TG和接触角测试仪分别表征了样品的热稳定性和表面性质。结果表明，环氧丙基已成功接枝到GO表面，且反应过程中GO发生了部分还原。接枝环氧氯丙烷后，FGO热稳定性提高，表现出一定的疏水特性，与环氧树脂类分散体系有较好的相容性。

Functionalized graphene oxide (FGO) is prepared by grafting epoxypropyl group onto the surface of GO with DMF as dispersant and KI as catalyst.The structures,surface morphologies and elemental compositions of the FGO samples before and after functionalization are tested by FT-IR,XRD and SEM.The thermal stabilities and surface properties of the samples are characterized by TG method and contact angle test,respectively.It is shown from these tests that epoxy propyl group has successfully been grafted onto GO surface,and GO has partially been reduced during the reaction.After grafting with epichlorohydrin,FGO improves its thermal stability,exhibits certain hydrophobic properties,and shows a good compatibility with epoxy resin dispersion systems.

张越鹏(1995-),男,硕士研究生,研究方向为炭材料制备及性能研究,312738561@qq.com