Fabrication and characterization of a cotton candy like surface with superhydrophobicity

Superhydrophobic thin films were prepared on glass by air-brushing the in situ polymerization compositions of D-5/SiO2. The wettability and morphology were investigated by contact angle measurement and scanning electron microscopy. The most superhydrophobic samples prepared had a static water contact angle of 157 degrees for a 5 mu l droplet and a sliding angle of similar to 1 degrees for 10 mu l droplet. Thermal stability analysis showed that the surface maintained superhydrophobic at temperature up to 450 degrees C. Air trapping and capillary force on superhydrophobic behavior were evaluated. (C) 2011 Elsevier B.V. All rights reserved.