Manipulating assemblies of high-aspect-ratio clays and fatty amine salts to form surfaces exhibiting a lotus effect
Journal
Advanced Materials
Journal Volume
18
Journal Issue
24
Pages
3248-3252
Date Issued
2006
Author(s)
Abstract
A superhydrophobic surface exhibiting a water-droplet contact angle of ca. 157° (see figure left) is generated from the self assembly of nanoscale clay platelets with attached fatty amine chains. The anionic high-aspect-ratio platelets self-align upon modification with the alkyl organics to form rough surfaces exhibiting the lotus-leaf effect. The right-hand figure shows the fractal surface with micrometer-scale roughness defined by the platelet building blocks.
Type
journal article