The invention relates to a high-barrier antistatic
graphene /
polymer nanocomposite sheet / film. Through an incomplete nanosphere
crystal or shish-kebab structure of the high-barrier antistatic
graphene /
polymer nanocomposite sheet / film, the interfacial gap between spherulites in a large
spherulite system is eliminated, amorphous area molecular chain movement is limited, a
diffusion rate of gas molecules in the structure is reduced and material barrier properties are improved. The high-barrier antistatic
graphene /
polymer nanocomposite sheet / film comprises, by
mass, 100 parts of polymer base resin, 0.005 to 1 part of graphene and 0 to 1.5 parts of a compatibilizer. Through the compatibilizer and a special flow channel structure of the multi-stage drawing
extrusion system, graphene dispersion and orientation distribution are adjusted and controlled. The heterogeneous
nucleation and space limitation effects of the graphene sheet induce formation of an orientation molecular chain and restricted nanosphere
crystal and shish-kebab structures so that amorphous
area density can be significantly increased, the interfacial gap between spherulites is reduced, amorphous area molecular chain movement is limited, a
diffusion rate of gas molecules in a polymer matrix is reduced, a gas
small molecule passing path is extended and the barrier properties of the nanocomposite sheet / film are improved.