A new method in synthesis of polyurethane/graphite oxide nanocomposites by twin-screw extruder
- University of Science, VNU-HCM
Abstract
In this study, we have synthesized polyurethane based on monoglyceride and 4.4 '-diphenyl methanediisocyanate (MDI) – an environmentally friendly polymer. Graphene oxite (GO) was used to reinforce for polyurethane forming polyurethane/graphene oxide (PU/GO) nanocomposite. The synthesis of PU and PU/GO was performed directly on the twinscrew extruder. This is a simple, time saving, economical and environmentally friendly method. Nanocomposites were manufactured with GO phase changed from 0.5% to 1.5% by weight. Structural analysis results of PU/GO showed a good dispersion through TEM figure (transmission electron microscopy). In addition, the mechanical and thermal properties of the nanocomposite were improved as compared to the original polyurethane. This study is a new step for the synthesis of polyurethane and nanocomposite based on polyurethane by the melt intercalation method.