Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

Seok Kim; Metin Sitti; Tao Xie; Xingcheng Xiao

doi:10.1039/B909885B

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Soft Matter

Issue 19, 2009

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Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

Seok Kim , Metin Sitti , Tao Xie and Xingcheng Xiao

Soft Matter, 2009, 5, 3689-3693

DOI: 10.1039/B909885B
Received 19 May 2009, Accepted 02 Jul 2009
First published on the web 03 Aug 2009

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This work reports thin-film terminated micro-fibrillar adhesives made of adhesive polymers and shape memory polymers as reversible dry adhesives with thermally controllable adhesion. Structurally different adhesives were fabricated by coating a continuous thin layer of an elastomeric adhesive polymer onto either a flat or a fibrillar shape memory polymer surface. Experimental results exhibited that pull-off forces of the adhesives can be up to four times different depending on thermal conditions. These differences originate from the temperature dependence of either the intrinsic adhesion properties of the adhesive polymer and/or the stiffness of the sub-surface shape memory polymer.

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Soft Matter

Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

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