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|Abstract:||We report an experimental study of the drying-induced peeling of a bilayer, consisting of an elastomeric disk coated with a suspension of nanoparticles. We show that although capillary forces associated with the scale of the droplet cannot compete with the adhesion of the elastomer on a surface, large tensile stresses develop in the coating, which results in a moment bending the bilayer. We attribute this stress to the nano-menisci in the pores of the colloidal material and we propose a model that describes successfully the early-stage curvature of the bilayer. Thus, we show that the peeling can be conveniently controlled by the particle size and the coating thickness.|
|Electronic Publication Date:||7-Oct-2014|
|Citation:||Boulogne, F, Stone, HA. (2014). Self-crumpling elastomers: Bending induced by the drying stimulus of a nanoparticle suspension. EPL (Europhysics Letters), 108 (1), 19001 - 19001. doi:10.1209/0295-5075/108/19001|
|Pages:||19001 - 19001|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||EPL (Europhysics Letters)|
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