1 / 9

A Hydrophobic Comparison of Ceramics to UHMWPE

A Hydrophobic Comparison of Ceramics to UHMWPE. Background. Ski bases are made out of Ultra High Molecular Weight Polyethylene Has not changed in almost the entire history of skiing Coated with a fluorocarbon wax to make more hydrophobic

virote
Download Presentation

A Hydrophobic Comparison of Ceramics to UHMWPE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. A Hydrophobic Comparison of Ceramicsto UHMWPE

  2. Background • Ski bases are made out of Ultra High Molecular Weight Polyethylene • Has not changed in almost the entire history of skiing • Coated with a fluorocarbon wax to make more hydrophobic • Main problem with ski bases is that they are soft and take scratches easily • We would like to work to find a material to replace the industry standard

  3. Tough Thinking • Ceramics are a strong material that have already proven to be hydrophobic • MIT has done research with rare-earth metals to prove this • From powder oxides of the Lanthanide Series • Heat to near melting point and bond together • Tough and very naturally hydrophobic • http://www.technologyreview.com/article/513191/hydrophobics-get-tough/ • BUT are they as hydrophobic as standard ski bases with wax?

  4. Goal • Complete a comparative study between the two materials based on contact angle of water on surface

  5. What is contact angle? • Where a liquid/vapor interface meets a solid surface • Young’s equation • Solid-Vapor, Solid-Liquid, Liquid-Vapor interfacial energy • The more hydrophobic, the greater the contact angle

  6. Method Using a Goniometer -Finds the contact angle between the liquid and solid by using advanced cameras * capture the drop shape * send it to software which will analyze the shape and find the angle. *Then the centrifugal adhesion balance can relate the contact angle to the hydrophobic properties of the surface.

  7. Data (Ceria) Ce – Contact Angle: 102.3° ± 2° Going to contact MIT for further data

  8. Data to Collect • Ski base (UHMWPE) • Coated with various ski waxes intended for different temperatures

  9. Additional Articles • http://dspace.mit.edu/bitstream/handle/1721.1/16625/55871896.pdf • http://arxiv.org/pdf/1304.1485.pdf • http://en.wikipedia.org/wiki/Ceramic_engineering • http://www.iran-daily.com/1391/11/9/MainPaper/4434/Page/8/MainPaper_4434_8.pdf • http://en.wikipedia.org/wiki/Contact_angle

More Related