Superhydrophobic ski bases for reduced water adhesion

The speed of an alpine ski depends on many properties, including the chemical composition of the base material, the surface structuring of the base and the complex tribology involving the base, the snow and the intermediate water layer that develops as a consequence of solar heating and friction. Using the superhydrophobic properties of some natural leaves as a template, samples of UHMWPE were hot embossed using stainless steel meshes of different mesh sizes using a hot press at constant 300 N applied force for different periods of time. It was found that as the mesh size increased, decreasing the surface feature size from 78 to 51 µm, the contact angle increased, indicating lower surface wetting and a higher degree of hydrophobicity. In the case of the 325 mesh sample, the contact angle was increased from 78.35° in the virgin untreated sample to 112.84° in the thermally patterned sample.
© Copyright 2014 Procedia Engineering. Elsevier. All rights reserved.

Bibliographic Details
Subjects:
Notations:technical and natural sciences sports facilities and sports equipment
Tagging:Tribologie
Published in:Procedia Engineering
Language:English
Published: 2014
Online Access:http://doi.org/10.1016/j.proeng.2014.06.105
Volume:72
Pages:605-610
Document types:article
Level:advanced