Physikalisch-Chemisches Institut, Universität Zürich Irchel, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
Chemphyschem. 2013 Jun 3;14(8):1646-51. doi: 10.1002/cphc.201200995. Epub 2013 Apr 24.
A facile method for the preparation of silica/silicone nanofilament hybrid coatings with almost perfect superhydrophobicity (contact angle=179.8° and sliding angle=1.3°) is presented. The coatings are obtained by dip-coating of silica nanoparticles, followed by chemical vapor deposition of silicone nanofilaments. Predominant growth of silicone nanofilaments onto aggregated silica nanoparticles generates a two-tier structure. The effect of silica nanoparticle size on the growth of silicone nanofilaments, along with their anti-wetting properties and transparency are investigated in detail. Surface roughness and anti-wetting properties can be simply regulated by controlling the size of silica nanoparticles.
一种简便的方法制备了具有近乎完美超疏水性（接触角为 179.8°，滑动角为 1.3°）的二氧化硅/硅酮纳米纤维杂化涂层。该涂层是通过二氧化硅纳米颗粒的浸涂，然后进行硅酮纳米纤维的化学气相沉积得到的。硅酮纳米纤维主要在聚集的二氧化硅纳米颗粒上生长，形成了双层结构。详细研究了二氧化硅纳米颗粒的尺寸对硅酮纳米纤维生长的影响，以及它们的润湿性和透光性。通过控制二氧化硅纳米颗粒的尺寸，可以简单地调节表面粗糙度和润湿性。
