Simultaneous Functionalization and Reduction of Graphene Oxide with Polyetheramine and Its Electrica

• 作 者: Gongqing Tang Zhi-Guo Jiang Xiaofeng Li 张好斌 于中振
• 机 构: State Key Laboratory of Organic-Inorganic Composites, Department of Polymer Engineering, College of
• 出 处: Chinese Journal of Polymer Science
• 发表日期: 2014年08期
• 关键词: epoxy electrically insulating thermally conducting hydrophobic conductive graphi

Simultaneous functionalization and reduction of graphene oxide(GO) is realized by refluxing of GO suspension with polyetheramine(D2000) followed by thermal treatment at 120 °C. Compared to GO, the D2000-treated GO(GOD2000) becomes hydrophobic, thermally stable and highly conductive with an electrical conductivity of 11 S/m, which is almost 8 orders of magnitude higher than that of GO. Due to the high conductivity and improved dispersion of GO-D2000, its epoxy nanocomposites exhibit a sharp transition from electrically insulating to conducting with a low percolation threshold of 0.71 vol%. With 3.6 wt% GO-D2000, the glass transition temperature of the epoxy nanocomposite is 27 K higher than that of neat epoxy.

Simultaneous functionalization and reduction of graphene oxide (GO) is realized by refluxing of GO suspension with polyetheramine (D2000) followed by thermal treatment at 120 ° C. Compared to GO, the D2000-treated GO (GOD2000) becomes hydrophobic, thermally stable and highly Due to the high conductivity and improved dispersion of GO-D2000, its epoxy nanocomposites exhibit a sharp transition from electrically insulating to conducting with a low percolation threshold of 0.71 vol%. With 3.6 wt% GO-D2000, the glass transition temperature of the epoxy nanocomposite is 27 K higher than that of neat epoxy.