Self-crumpling elastomers: Bending induced by the drying stimulus of a nanoparticle suspension
Self-crumpling elastomers: Bending induced by the drying stimulus of a nanoparticle suspension
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自皱弹性体：纳米粒子悬浮液的干燥刺激引起的弯曲
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
H. Stone
中科院分区：
文献类型：
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作者：
F. Boulogne;H. Stone
我们报告了一个实验研究的干燥引起的剥离的双层，由一个弹性体盘涂有悬浮液的纳米粒子。我们表明，虽然与液滴的规模相关联的毛细管力不能与表面上的弹性体的粘附力竞争，但在涂层中产生大的拉伸应力，这导致双层弯曲的时刻。我们将这种应力归因于胶体材料孔隙中的纳米颗粒，并提出了一个成功描述双层早期曲率的模型。因此，我们表明剥离可以通过颗粒尺寸和涂层厚度来方便地控制。
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.
影响因子：
8.6
作者：
Goehring, Lucas;Clegg, William J.;Routh, Alexander F.
通讯作者：
Routh, Alexander F.