Superhydrophobic Properties of Nanotextured Polypropylene Foils Fabricated by Roll-to-Roll Extrusion Coating

Autor: Ling Schneider, Swathi Murthy, Rafael J. Taboryski, Agnieszka Telecka, Henrik Pranov
Rok vydání: 2016
Předmět:
Zdroj: Telecka, A, Murthy, S, Sun, L, Pranov, H & Taboryski, R J 2016, ' Superhydrophobic Properties of Nanotextured Polypropylene Foils Fabricated by Roll-to-Roll Extrusion Coating ', ACS Macro Letters, vol. 5, no. 9, pp. 1034-1038 . https://doi.org/10.1021/acsmacrolett.6b00550
ISSN: 2161-1653
DOI: 10.1021/acsmacrolett.6b00550
Popis: We demonstrate the use of roll-to-roll extrusion coating (R2R-EC) for fabrication of nanopatterned polypropylene (PP) foils with strong antiwetting properties. The antiwetting nanopattern is originated from textured surfaces fabricated on silicon wafers by a single-step method of reactive ion etching with different processing gas flow rates. We provide a systematic study of the wetting properties for the fabricated surfaces and show that a controlled texture stretching effect in the R2R-EC process is instrumental to yield the superhydrophobic surfaces with water contact angles approaching 160° and droplet roll-off angles below 10°.
Databáze: OpenAIRE