Article Dans Une Revue Langmuir Année : 2010

Engineering sticky superomniphobic surfaces on transparent and flexible PDMS substrate

Résumé

Following the achievement of superhydrophobicity which prevents water adhesion on a surface, superomniphobicity extends this high repellency property to a wide range of liquids, including oils, solvents, and other low surface energy liquids. Recent theoretical approaches have yield to specific microstructures design criterion to achieve such surfaces, leading to superomniphobic structured silicon substrate. To transfer this technology on a flexible substrate, we use a polydimethylsiloxane (PDMS) molding process followed by surface chemical modification. It results in so-called sticky superomniphobic surfaces, exhibiting large apparent contact angles (>150°) along with large contact angle hysteresis (>10°). We then focus on the modified Cassie equation, considering the 1D aspect of wetting, to explain the behavior of droplets on these surfaces and compare experimental data to previous works to confirm the validity of this model.

Fichier principal
Vignette du fichier
Dufour2010.pdf (240.41 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-00549492 , version 1 (07-07-2025)

Licence

Identifiants

Citer

Renaud Dufour, Maxime Harnois, Yannick Coffinier, Vincent Thomy, Rabah Boukherroub, et al.. Engineering sticky superomniphobic surfaces on transparent and flexible PDMS substrate. Langmuir, 2010, 26 (22), pp.17242-17247. ⟨10.1021/la103462z⟩. ⟨hal-00549492⟩
123 Consultations
68 Téléchargements

Altmetric

Partager

  • More