J. Mater. Sci. Technol. ›› 2020, Vol. 49: 106-116.DOI: 10.1016/j.jmst.2020.02.022

• Research Article • Previous Articles     Next Articles

Superior anti-icing strategy by combined sustainable liquid repellence and electro/photo-responsive thermogenesis of oil/MWNT composite

Aeree Kima,*,1(), Seonghyeon Kima,1, Myoung Huha, Hyungmo Kimb, Chan Leeb   

  1. a Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
    b Korea Atomic Energy Research Institute (KAERI), Daejeon, 34057, Republic of Korea
  • Received:2019-10-21 Revised:2020-01-30 Accepted:2020-02-01 Published:2020-07-15 Online:2020-07-17
  • Contact: Aeree Kim
  • About author:1 These authors contributed equally as co-first authors to this work.


This paper introduces an effective anti-icing strategy that uses passive anti-icing property and active de-icing functions concurrently. These dual capabilities can alleviate the icing problem more effectively than either a passive or active function alone. The developed material is a slippery liquid-repellent elastic conductor (SLEC); it is an organogel that is composed of multi-walled carbon nanotubes, oil, and polydimethylsiloxane. The SLEC maintains passive water-droplet sliding ability even on wet surfaces that frequently occur in cold conditions (e.g., during condensation and defrosting), suppresses ice nucleation, and shows ice adhesion strength as low as ~ 20 kPa. The SLEC releases heat when it is subject to electrical or photonic stimulation, and can therefore it can prevent ice formation and melt ice that has already formed on a surface. This material has sustainable liquid repellence by syneresis and replenishment; this ability ensures long-lasting anti-icing property, and results in exceptional durability. This durability is stable against mechanical damage. The superior dual anti-icing capabilities together with the sustainable and stable liquid repellence should generate synergistic effects, and yield a powerful anti-icing tool that can broaden the range of icing applications.

Key words: Anti-icing, De-icing, Icephobic, Soft conductor, Self-healing, Nanocomposite, Liquid repellence