What is it about?

We show how changing a materials compliance (how deformable it is) changes how well it sticks to a solid wall. We use magnetism and physical immobilization of a silicone material to show how the exact same interface (silicone on glass) may require a large or a small forces to be broken. When the elastomer is immobilized it is harder to deform (it is stiff) and its interface with glass will hold a large force before failing. The exact same interface will fail under a tiny force if the elastomer is left in its naturally stretchy state. We show how this switching can create an easily controlled adhesion.

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Why is it important?

This is important because most previous works aimed at switching adhesion focus on chemistry or geometry to change force levels. We open a third equivalent route for switching design.

Read the Original

This page is a summary of: Compliance switching for adhesion control, Journal of Polymer Science Part B Polymer Physics, November 2014, Wiley,
DOI: 10.1002/polb.23624.
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