Preparation of Hierarchically Structured Polystyrene Surfaces with Superhydrophobic Properties by Plasma-Assisted Fluorination

Coatings

Martin Minařík¹  Lenka Musilová¹  Barbora Ptošková¹  Erik Wrzecionko¹  Aleš Mráček¹  Ondřej Grulich¹  Antonín Minařík¹  Petr Smolka¹  Miran Mozetič²  Gregor Primc²  Ita Junkar² 

[1] Department of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech Republic;Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia;

关键词: surface pores;    polystyrene;    nanotexture;    plasma;    superhydrophobic;   

DOI  :  10.3390/coatings9030201

来源: DOAJ

【 摘 要 】

The nanotexturing of microstructured polystyrene surfaces through CF₄ plasma chemical fluorination is presented in this study. It is demonstrated that the parameters of a surface micropore-generation process, together with the setup of subsequent plasma-chemical modifications, allows for the creation of a long-term (weeks) surface-stable micro- and nanotexture with high hydrophobicity (water contact angle >150°). Surface micropores were generated initially via the time-sequenced dosing of mixed solvents onto a polystyrene surface (Petri dish) in a spin-coater. In the second step, tetrafluoromethane (CF₄) plasma fluorination was used for the generation of a specific surface nanotexture and the modulation of the surface chemical composition. Experimental results of microscopic, goniometric, and spectroscopic measurements have shown that a single combination of phase separation methods and plasma processes enables the facile preparation of a wide spectrum of hierarchically structured surfaces differing in their wetting properties and application potentials.

【 授权许可】

Unknown