Surface-structured polymer bodies and method for the fabrication thereof
AssigneeLeibniz-Institut Fuer Polymerforschung Dresden E.V.
InventorsBernhard GLATZ, André KNAPP, Andreas FERY
Life of this patent
Estimating the term…
Abstract
Surface-structured polymer bodies in which polymer bodies with dimensions of at least ≥100 cm2 are present. The surfaces of the bodies are at least partially covered with at least one nano- to micrometer-thick layer, and the layers are physically and/or chemically coupled to the polymer bodies, and the surface of the polymer bodies with the layers is at least partially deformed. The deformation is periodic within a deformation type and the arrangement of multiple different deformation types on a polymer body is anisotropic or isotropic, and the elastic modulus of the material of the polymer body is less than the elastic modulus of the layer materials.
Claims17
Surface-structured polymer bodies in which polymer bodies with dimensions of at least ≥100 cm2 are present, the surfaces of which are at least partially covered with at least one nano- to micrometer-thick layer, and the layers are physically and/or chemically coupled to the polymer bodies, and the surface of the polymer bodies with the layers is at least partially deformed, wherein the deformation is periodic within a deformation type and the arrangement of multiple different deformation types on a polymer body is anisotropic or isotropic, and wherein the elastic modulus of the material of the polymer body is less than the elastic modulus of the layer materials.
A method for the fabrication of surface-structured polymer bodies in which polymer bodies with dimensions of at least ≥100 cm2 are subjected to a stretching strain in at least one direction at least above the critical wrinkling stress and maximally up to below the fracture stress of the material of the polymer bodies, the surfaces of the polymer bodies are coated in the strained state with at least one nano- to micrometer-thick layer or layer composite by means of an atmospheric plasma or by means of printing or by means of knife coating, and the stretching strain of the polymer bodies is then released at least in sections, wherein the elastic modulus of the materials used in the polymer bodies is less than the elastic modulus of the applied layer materials, and wherein the fabrication process is carried out continuously.
Dependencies are inferred from the claim text.