FABRICATING AND MECHANICAL PROPERTIES OF CARBON FIBER/EPOXY NANOCOMPOSITES REINFORCED WITH GRAPHENE OXIDE MODIFIED WITH 3-AMINOPROPYL TRIMETHOXYSILANCE (APTES-GO)

Abstract

In this study, polymer nanocomposites based on carbon/epoxy reinforced with graphene oxide (GO) as well as GO modified with 3-aminopropyl
triethoxysilane (APTES) were prepared by hand lay-up technics. The properties of the materials were characterized by infrared spectroscopy (FTIR), scanning
electrone microscopy (SEM), the mechanical properties according to ISO, ASTM standards. The result reveals that GO with COOH group was successfully modified
with APTES for reinforcement of epoxy. The tensile strength of epoxy/GO-APTES nanocomposites was higher than that of epoxy/GO nanocomposites. At the
optimal GO-APTES content of 0.3%, the epoxy/GO-APTES reached the highest tensile strength of 125.18MPa. The polymer composites carbon/epoxy/GO-APTES
have the tensile strength of 583.59MPa, bending strength of 338.25MPa and impact strength of 142.19kJ/m2
, higher than that of un-reinforcement or GO
reinforcement epoxy. The reason was the stronger phase interaction between epoxy and GO modified with APTES.