abstract |
[Problem] To provide a film having high gas barrier properties and excellent gas barrier properties without being laminated. At least one surface of a polymer base material (1) is selected from a first layer (2a) mainly composed of zinc oxide and / or a compound containing zinc sulfide and silicon dioxide, and silicon carbide, silicon nitride and silicon oxynitride. A gas barrier layer disposed in this order from a polymer base material, and the first layer and the second layer are formed by a nanoindentation method. A gas barrier film having a measured film hardness of 0.5 to 5.0 GPa. [Selection] Figure 1 |