Sun Cheng, Gu Zhong-Ze, Xu Hua
College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, PR China, 225002.
Langmuir. 2009 Nov 3;25(21):12439-43. doi: 10.1021/la902785k.
To mimic the structure of the lotus leaf, we present a facile route to prepare superhydrophobic surfaces by depositing nanoparticle clusters onto a solid surface. These clusters were fabricated via solidification of an emulsion droplet containing a nanoparticle in silicone oil. Thus, the microsized clusters and nanoparticles form dual-scale roughness structures. The surface is modified by fluoroalkylsilane and exhibits superhydrophobicity, with a contact angle greater than 165 degrees as well as a sliding angle less than 1 degrees . On the basis of size tuning of the nano/microstructures, various contact angles and sliding angles were investigated. Furthermore, the influence of micro/nanostructures on superhydrophobicity is discussed.
为了模拟荷叶的结构，我们提出了一种简便的方法，通过在固体表面沉积纳米颗粒簇来制备超疏水表面。这些簇是通过在硅油中固化含有纳米颗粒的乳液滴而制成的。因此，微米级的簇和纳米颗粒形成了双尺度粗糙度结构。该表面用氟代烷基硅烷进行了改性，表现出超疏水性，接触角大于165度，滑动角小于1度。基于纳米/微结构的尺寸调整，研究了各种接触角和滑动角。此外，还讨论了微/纳米结构对超疏水性的影响。
