| 초록 |
Despite the great potential of graphene as a nanofiller, to achieve homogeneous dispersion remains a key challenge for effectively reinforcing polymer. Here, we report a facile method of fabricating the polymer nanocomposites with well-dispersed graphene oxide sheets in polymer matrix. The graphene oxide sheets reacted with polyethylene glycol (PEG) to form the functionalized graphene sheets (GO-PEG), to improve their compatibility with polyamide 6(PA6). The PA6 incorporated with GO-PEG was mixed in solution then compression molded. The dependence of crystallization behavior, thermal stability and mechanical properties of the nanocomposites on the type and loading of the functionalized graphene oxide was investigated. The GO-PEG was well dispersed as exfoliated and intercalated nanostructure and had strong interfacial adhesion with PA6, which made the nanocomposites have significant enhancement of thermal stability and mechanical properties at low GO-PEG loadings. |
