A novel chemical functionalized graphene (FG) was synthesized through facial covalent functionalization with ethanolamine

and the effects of experiment conditions on the properties of the product were investigated in detail. The results showed that the absorbance of the product increased with increasing the content of ethanolamine

reaction temperature

pH and reaction time

while the content of N in the product decreased accordingly. It was concluded that the optimal properties of ethanolamine functionalized graphene (EFG) were achieved when the mass ratio of ethanolamine to graphite oxide (GO) was 4.0

the reaction temperature was 50℃

the pH was 7.0 and the reaction time was 12 h. X-ray photoelectron spectroscopy (XPS) suggested that the ethanolamine could modify graphene and reduce graphene oxide simultaneously. Subsequently

the EFG/polyvinyl butyral (PVB) composite materials were prepared by two different ways

including solution blending method and in situ reduction method. Finally

The scanning electron microcopy

conductivity test

ultraviolet and visible spectroscopy (UV-Vis) and tensile test were performed to measure the morphology and properties of the EFG/PVB composites. It was illustrated that the introduction of EFG led to an improvement in the conductivity

the ultraviolet shielding ability and mechanical properties of PVB. Compared with the material through solution blending

the composite prepared by the in situ reduction had a better performance. When the content of the EFG reached 3.0 wt%

the composite showed a conductivity of about 10-3 S m-1

which is 106 higher than that of neat PVB. Meanwhile

the ultraviolet shielding ability reached 90% by only adding 1.0 wt% EFG.