Issue 19, 2009
From the journal:

Soft Matter

Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

Seok Kim,a   Metin Sitti,*a   Tao Xie*b  and  Xingcheng Xiaob  

* Corresponding authors

a Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
E-mail: sitti@cmu.edu

b Materials & Processes Laboratory, General Motors Research & Development Center, Warren, MI, USA
E-mail: tao.xie@gm.com

Abstract

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.

Graphical abstract: Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

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Article information

DOI
https://doi.org/10.1039/B909885B
Article type
Paper
Submitted
19 May 2009
Accepted
02 Jul 2009
First published
03 Aug 2009

Soft Matter, 2009,5, 3689-3693

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Reversible dry micro-fibrillar adhesives with thermally controllable adhesion

S. Kim, M. Sitti, T. Xie and X. Xiao, Soft Matter, 2009, 5, 3689 DOI: 10.1039/B909885B

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