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

• 作者: Aeree Kim Seonghyeon Kim Myoung Huh Hyungmo Kim Chan Lee
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2020,（14）
• 页码范围: 106-116
• 页数: 11页
• 语种: 英文

摘要

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 poly-dimethylsiloxane.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.