Premium
Manipulating Assemblies of High‐Aspect‐Ratio Clays and Fatty Amine Salts to Form Surfaces Exhibiting a Lotus Effect
Author(s) -
Lin J.J.,
Chu C.C.,
Chiang M.L.,
Tsai W.C.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600948
Subject(s) - lotus effect , materials science , alkyl , nanoscopic scale , contact angle , aspect ratio (aeronautics) , micrometer , surface finish , chemical engineering , amine gas treating , lotus , nanotechnology , surface energy , self assembly , surface roughness , organic chemistry , composite material , chemistry , optics , botany , raw material , engineering , biology , physics
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.