Coating Structure
AssigneeRhenotherm Kunststoffbeschichtungs GmbH
InventorVolkmar Eigenbrod
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Abstract
The invention relates to a non-stick coating for a surface of a substrate. In order to significantly improve the non-stick properties compared to the previously known surface coatings and to ensure adequate stability, the surface coating contains at least one fluoropolymer and is characterised by a layer structure with at least one microstructured first layer and at least one submicrostructured second layer overlaying the latter. The invention also relates to a method for producing a surface coating of this type, in which the microstructured subsurface is produced by applying a microstructured layer to a macrostructured surface.
Claims15
Non-stick coating for a surface of a substrate, which contains at least one non-adhesive plastics material, in particular at least one fluoropolymer, characterised by a hierarchical layer structure with at least one microstructured first layer and at least one submicrostructured second layer overlaying the latter, the hierarchical structure being applied to a microstructured subsurface.
Non-stick coating according to any one of the preceding claims, characterised in that the first layer contains an addition of 5 to 30% by weight of organic or inorganic particles, in particular of PPSO2 or SiC.
Non-stick coating according to any one of the preceding claims, with a water contact angle CA>=150°, in particular in conjunction with a water contact angle hysteresis CAH<=8° and/or a run-off angle <=10°.
Non-stick coating according to any one of the preceding claims, with an adhesive tape removal force approaching 0.
Method for producing a non-stick coating, wherein a first microstructured layer is applied to a microstructured subsurface and a submicrostructured layer is applied thereto.
Method according to any one of cairns 5 to 14, characterised in that before the application of the layer structure, a primer layer is applied to the microstructured subsurface, the thickness of which does not exceed 5 μm, in particular 1 μm.
Dependencies are inferred from the claim text.