An analytical model for the wettability switching characteristic of a nanostructured thermoresponsive surface

作者：Londe Ghanashyam^*; Chunder Anindarupa; Zhai Lei; Cho Hyoung J

来源：Applied Physics Letters, 2009, 94(16): 164104.

DOI：10.1063/1.3103270

• contact angle
• drops
• hydrophilicity
• hydrophobicity
• nanoparticles
• polymers
• silicon compounds
• surface energy
• surface structure
• wetting

The applications of thermoresponsive surfaces require the development of a rigorous mathematical treatment for these surfaces to understand and improve their behavior. We propose an analytical model to describe the transfer characteristics (variation in contact angle versus temperature) of a unique nanostructured thermosensitive surface, consisting of silica nanoparticles and a hydrophilic/hydrophobic thermoresponsive polymer, poly(N-isopropylacrylamide). Three different thermo-sensitive platforms were fabricated and the contact angle change of a water droplet on the surface with varying surface temperature was analytically modeled.

• 出版日期2009-4-20