Jump to main content
Jump to site search

Issue 24, 2018
Previous Article Next Article

Fast and highly reversible switching of wettability through macroscopic shape change

Author affiliations

Abstract

A smart surface with switchable wettability has many important technological applications. Here we report an intelligent surface that can fast and reversibly switch its wettability through macroscopic shape change. The reported surface is constructed by integrating a superhydrophobic copper mesh into a polyvinyl alcohol (PVA) gel synthesized via solvent exchange. By elaborately tuning the pressure exerted on it, the wettability of the integrated mesh is able to vary between superhydrophobicity and superhydrophilicity in a few seconds, and the switching occurs up to 500 cycles. Reversible switching is found to be mainly determined by the adhesion force between the copper mesh and the polymer gels. Interestingly, reversible switching of superhydrophobicity/superhydrophilicity and superoleophobicity/superoleophilicity in liquid media can also be achieved through a similar strategy. The present investigation offers a facile strategy to fabricate an integrated smart surface with switchable wettability aiming for many important technological applications.

Graphical abstract: Fast and highly reversible switching of wettability through macroscopic shape change

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Mar 2018, accepted on 14 May 2018 and first published on 15 May 2018


Article type: Paper
DOI: 10.1039/C8TA02658K
Citation: J. Mater. Chem. A, 2018,6, 11288-11295
  •   Request permissions

    Fast and highly reversible switching of wettability through macroscopic shape change

    F. Liu and Q. Pan, J. Mater. Chem. A, 2018, 6, 11288
    DOI: 10.1039/C8TA02658K

Search articles by author

Spotlight

Advertisements