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Superhydrophobic electrosprayed PTFE

2007; Elsevier BV; Volume: 202; Issue: 1 Linguagem: Inglês

10.1016/j.surfcoat.2007.05.012

1879-3347

E. Burkarter, Cyro Ketzer Saul, Fabiano Thomazi, Nilson Cristino da Cruz, Lucimara S. Roman, W. H. Schreiner,

Advanced Sensor and Energy Harvesting Materials

This paper shows the deposition of superhydrophobic PTFE (polytetrafluoroethylene) films on FTO (fluorine doped tin oxide) coated glass slides, employing the electrospray technique, using a commercial PTFE particle suspension in water. Water contact angles as high as 167° were measured on the PTFE surface. Water drop sliding angles at 2° show a very low contact angle hysteresis. Scanning electron and atomic force microscopy images show the typical rough micro/nanostructure required for superhydrophobicity.