Superhydrophobic aerogel that does not require per-fluoro compounds or contain any fluorine
Provided are superhydrophobic coatings, devices and articles including superhydrophobic coatings, and methods for preparing the superhydrophobic coatings. The exemplary superhydrophobic device can include a substrate component and one or more superhydrophobic coatings disposed over the substrate component, wherein at least one of the one or more superhydrophobic coatings has a water contact angle of at least about 150.degree. and a contact angle hysteresis of less than about 1.degree.. The one or more superhydrophobic coatings can include an ultra high water content acid catalyzed polysilicate gel, the polysilicate gel including a three dimensional network of silica particles having surface functional groups derivatized with a silylating agent and a plurality of pores.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- STC.UNM (Albuquerque, NM)
- Patent Number(s):
- 9,040,435
- Application Number:
- 13/121,166
- OSTI ID:
- 1182573
- Country of Publication:
- United States
- Language:
- English
Protective coating composition
|
patent | December 2007 |
Micropatterned superhydrophobic silica based sol-gel surfaces
|
patent-application | December 2006 |
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