Stability and water wetting behavior of superhydrophobic polyurethane films created by hot embossing and plasma etching and coating | Zendy

Barz Jakob | Zendy; Haupt Michael | Zendy; Oehr Christian | Zendy; Hirth Thomas | Zendy; Grimmer Philipp | Zendy

Premium

Stability and water wetting behavior of superhydrophobic polyurethane films created by hot embossing and plasma etching and coating

Author(s) -

Barz Jakob,

Haupt Michael,

Oehr Christian,

Hirth Thomas,

Grimmer Philipp

Publication year - 2019

Publication title -

plasma processes and polymers

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.644

H-Index - 74

eISSN - 1612-8869

pISSN - 1612-8850

DOI - 10.1002/ppap.201800214

Subject(s) - materials science , wetting , hexamethyldisiloxane , contact angle , composite material , coating , microstructure , plasma enhanced chemical vapor deposition , abrasion (mechanical) , superhydrophobic coating , polyurethane , profilometer , plasma , thin film , nanotechnology , surface finish , physics , quantum mechanics

The surface characteristics, the stability against erosion, and the water wetting behavior of superhydrophobic polyurethane (PU) films are described. Hot embossing is used to imprint conical microstructures in PU films. Afterwards, about 200‐nm thick hydrophobic plasma polymers are deposited by PECVD, using different fluorocarbons (CHF 3 , C 3 F 6 , or C 4 F 8 ) or hexamethyldisiloxane as precursors. Ar or O 2 plasma etching is used to increase the surface nanoroughness. The plasma coatings show stability against sand abrasion and in a long‐term outdoor test but are completely degraded by an industrial UV/water weathering test. Superhydrophobicity is achieved on the coated microstructures with base diameters between 35 µm and 50 µm, top diameters between 14 µm and 20 µm, and distances between 50 µm and 70 µm.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research