| 摘要 |
The invention relates to a method of determining a barrier effect of a coating (4) for a medium (17), which is characterized by the following steps: a) providing a substrate (1) having the coating (4) on its surface, said substrate undergoing a change in volume on contact with the medium (17), b) conditioning the substrate (1) with the coating (4), c) removing the coating (4) from a first part of the surface (6) of the substrate (1), leaving the coating (4) on a second part of the surface of the substrate (1), the first part of the surface (6) having an extent in a first direction delimited by the coating (4) remaining on the second part of the surface, d) determining a first height profile of a surface of the coating (4) on the second part of the surface and the first part of the surface (6) of the substrate (1) on a path in the first direction, e) exposing the surface of the remaining coating (4) and the first part of the surface (6) of the substrate (1) to the medium (17), f) determining a second height profile of the surface of the coating (4) on the second part of the surface and the first part of the surface (6) of the substrate (1) on the path in the first direction and/or determining a first difference in height profile of the surface of the coating (4) on the second part of the surface and the first part of the surface (6) of the substrate (1) on the path in the first direction with respect to the height profile determined beforehand. |
