Ultra Fast Oleophobic - Hydrophilic Switching Surfaces

摘要

The invention provides a coating which exhibits fast oleophobic-hydrophilic switching behaviour 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.

主权项

1. A coating which is oleophobic and hydrophilic with a switching parameter magnitude of at least 60° and/or a switching speed of less than 10 seconds.