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Structured surface with adhesion switchable in stages

A structured surface, adhesion technology, applied in the direction of film/sheet adhesives, adhesives, connecting components, etc., can solve the problem of surface adhesion effect and so on

Active Publication Date: 2017-08-29
INTITUT FUR NEUE MAT GEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that the adhesion of the surface can only be influenced to a limited extent

Method used

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  • Structured surface with adhesion switchable in stages
  • Structured surface with adhesion switchable in stages
  • Structured surface with adhesion switchable in stages

Examples

Experimental program
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Effect test

Embodiment Construction

[0078] figure 1 A schematic diagram of a switchable adhesion with a surface constructed according to the invention is shown. The structured surface 200 comprises a first type of protrusion 210 and at least one second type of protrusion 220 which differ by the vertical height of their end faces 215 , 225 . The vertical height is the distance between the end faces 215 , 225 and the surface 205 on which these projections are arranged. The protrusion has a stem 210 , 220 and an end face 215 , 225 . In step I, the substrate is moved towards the substrate 230 . In this case, as shown in II, the protrusion with the largest vertical height comes into contact with the substrate surface first. Thus, the end faces 225 of these protrusions 220 allow the structured surface 200 to adhere to the substrate 230 . This force must be overcome to detach the structured surface again (as indicated by the dashed arrows). This is the case with low preload. As the structured surface 200 is moved...

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Abstract

The invention relates to a structured surface comprising at least two types of projections that differ from one another at least in terms of their vertical height. This allows the adhesion of said structured surface to be switched between at least three different states.

Description

technical field [0001] The invention relates to a surface with switchable adhesive properties and a method for producing such a surface. Background technique [0002] Switchable adhesion is of great significance for many applications. Joints formed by adhesive joints are often only suitable for one-time applications, or fail quickly after multiple applications. [0003] An important area of ​​reversible adherens junctions is dry adhesion based on van der Waals forces similar to gecko structures. These structures are detachable and can also be used multiple times. The problem, however, is that the adhesion of the surface can only be influenced to a limited extent. [0004] technical problem [0005] The technical problem to be solved by the present invention is to provide a structured surface, the adhesive force of which can be changed, which surface has switchable adhesive properties. Furthermore, a method for producing such a surface is provided. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B5/07F16B11/00
CPCF16B5/07F16B11/006C09J2301/31C09J7/00B32B3/263B32B2250/03B32B2307/70
Inventor E.克罗纳P.耶格伊斯拉
Owner INTITUT FUR NEUE MAT GEM
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