Microstructured Shape Memory Polymer Surfaces with Reversible Dry Adhesion

Microstructured Shape Memory Polymer Surfaces with Reversible Dry Adhesion

We present a shape memory polymer (SMP) surface with repeatable, very strong (>18 atm), and extremely reversible (strong to weak adhesion ratio of >1 × 104) dry adhesion to a glass substrate. This was achieved by exploiting bulk material properties of SMP and surface microstructuring. Its exce...

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Veröffentlicht in:ACS applied materials & interfaces 2013-08, Vol.5 (16), p.7714-7717
Hauptverfasser: Eisenhaure, Jeffrey D, Xie, Tao, Varghese, Stephen, Kim, Seok
Format: Artikel
Sprache:eng
Schlagworte:
Glass - chemistry
Polymers - chemistry
Surface Properties
Temperature
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Zusammenfassung:We present a shape memory polymer (SMP) surface with repeatable, very strong (>18 atm), and extremely reversible (strong to weak adhesion ratio of >1 × 104) dry adhesion to a glass substrate. This was achieved by exploiting bulk material properties of SMP and surface microstructuring. Its exceptional dry adhesive performance is attributed to the SMP’s rigidity change in response to temperature and its capabilities of temporary shape locking and permanent shape recovery, which when combined with a microtip surface design enables time-independent control of contact area.
ISSN:1944-8244
1944-8252
DOI:10.1021/am402479f