Title:
ULTRA FAST OLEOPHOBIC-HYDROPHILIC SWITCHING SURFACES
Document Type and Number:
WIPO Patent Application WO/2015/075446
Kind Code:
A3
Abstract:
The invention provides a coating which exhibits fast oleophobic-hydrophilic switching behaviour, such as a switching parameter magnitude and/or a switching speed, with, for example, equilibration of high oil contact angle (hexadecane=80°) and low water contact angle « 10°) values which occur within 10 s of droplet impact. These optically transparent surfaces display excellent anti-fogging and self-cleaning properties. The magnitude of oleophobic-hydrophilic switching can be further enhanced by the incorporation of surface roughness and in one embodiment the coating is applied to a surface in the form of a mesh in order to form an effective filter.
Inventors:
BADYAL JAS PAL SINGH (GB)
ATKINSON OLIVIA DIANE LOUISE AMY (GB)
BROWN PHILIP SIMON (GB)
ATKINSON OLIVIA DIANE LOUISE AMY (GB)
BROWN PHILIP SIMON (GB)
Application Number:
PCT/GB2014/053421
Publication Date:
October 08, 2015
Filing Date:
November 19, 2014
Export Citation:
Assignee:
UNIV DURHAM (GB)
International Classes:
C09D5/16; C09D7/12; C09D127/12
Foreign References:
| CN101899240A | 2010-12-01 | |||
| US5439610A | 1995-08-08 | |||
| US20090041984A1 | 2009-02-12 |
Other References:
ZHONG XIN LIU ET AL: "Effect of Surfactant on the Properties of Gel Ink", ADVANCED MATERIALS RESEARCH, vol. 66, 1 April 2009 (2009-04-01), pages 143 - 146, XP055176629, DOI: 10.4028/www.scientific.net/AMR.66.143
Attorney, Agent or Firm:
BAILEY WALSH & CO LLP (1 York Place, Leeds West Yorkshire LS1 2DR, GB)
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