Jump to main content
Jump to site search

Issue 10, 2018
Previous Article Next Article

A superhydrophobic aerogel with robust self-healability

Author affiliations

Abstract

Self-healing is an effective strategy to improve the durability of a superhydrophobic surface, but a challenge remains in repairing its multi-scale structures and wettability simultaneously after damage. Here we report a self-healable superhydrophobic aerogel that spontaneously restores its superhydrophobicity, microstructure and macroscopic configuration simultaneously after physical or chemical damage. The superhydrophobic aerogel is fabricated by decorating an alginate-based aerogel with silver nanoparticles and octadecylamine (ODA). Once the aerogel is scratched or cut, it repairs both hierarchical structures and configuration integrity autonomously via wetting/heating processes, resulting in the recovery of superhydrophobicity and mechanical properties. Even after being etched with O2 plasma, it regains its superhydrophobic properties through a simple heat treatment. The robust healability is attributed to the dynamic catechol–Fe coordination as well as thermally induced rearrangement of ODA molecules. This concept of robust healability offers a new insight into the design of robust superhydrophobic surfaces aiming at various technological applications.

Graphical abstract: A superhydrophobic aerogel with robust self-healability

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Jan 2018, accepted on 08 Feb 2018 and first published on 08 Feb 2018


Article type: Paper
DOI: 10.1039/C8TA00323H
Citation: J. Mater. Chem. A, 2018,6, 4424-4431
  •   Request permissions

    A superhydrophobic aerogel with robust self-healability

    L. Qin, N. Chen, X. Zhou and Q. Pan, J. Mater. Chem. A, 2018, 6, 4424
    DOI: 10.1039/C8TA00323H

Search articles by author

Spotlight

Advertisements