Abstract

In this work, the role of a chemical parameter, such as the degree of fluorination, on the wetting behavior ofnanotextured hydrophobic surfaces is investigated. Texture and chemistry tuning of the surfaces has been accomplishedwith single batch radiofrequency low-pressure plasma processes. Polystyrene substrates have been textured by CF4plasma etching and subsequently covered by thin films with a tunable F-to-C ratio, obtained in discharges fed withC4F8-C2H4. Measurements of wetting dynamics reveal a regime transition from adhesive-hydrophobic to slipperysuperhydrophobic,i.e., from wet to non wet states, as the F-to-C rises at constant topography. Such achievements arestrengthened by calculation of the solid fraction of surface water contact area applying Cassie-Baxter advancing andreceding equations to water contact angle data of textured and flat reference surfaces

Autore Pugliese

• Palumbo Fabio

Tutti gli autori

• F. Palumbo; R. D'Agostino; R. Di Mundo

Titolo volume/Rivista

Langmuir

Anno di pubblicazione

2010

ISSN

0743-7463

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile