Inhibition of Defect-Induced Ice Nucleation, Propagation, and Adhesion by Bioinspired Self-Healing Anti-Icing Coatings
作者机构：Department of Biochemical EngineeringFrontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(MOE)School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Binzhou Institute of TechnologyWeiqiao-UCAS Science and Technology ParkBinzhou CityShandong Province 256606China
出 版 物：《Research》 (研究（英文）)
年 卷 期：2024年第2023卷第1期
页 面：237-246页
核心收录：
学科分类：0710[理学-生物学] 080503[工学-材料加工工程] 08[工学] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：the National Key Research and Development Program of China(2022YFC2104800 and 2021YFC2100800) the National Natural Science Foundation of China(22078238,21908160,and 21961132005)
摘 要：Anti-icing coatings on outdoor infrastructures inevitably suffer from mechanical injuries in numerous icing scenarios such as hailstorms,sandstorms,impacts of foreign objects,and icing–deicing ***,the mechanisms of surface-defect-induced icing are *** the defects,water molecules exhibit stronger adsorption and the heat transfer rate increases,accelerating the condensation of water vapor as well as ice nucleation and ***,the ice–defect interlocking structure increases the ice adhesion ***,a self-healing(at−20℃)antifreeze-protein(AFP)-inspired anti-icing coating is *** coating is based on a design that mimics the ice-binding and non-ice-binding sites in *** enables the coating to markedly inhibit ice nucleation(nucleation temperature−29.4℃),prevent ice propagation(propagation rate0.00048 cm^(2)/s),and reduce ice adhesion on the surface(adhesion strength38.9 kPa).More importantly,the coating can also autonomously self-heal at−20℃,as a result of multiple dynamic bonds in its structure,to inhibit defect-induced icing *** healed coating sustains high anti-icing and deicing performance even under various extreme *** work reveals the in-depth mechanism of defect-induced ice formation as well as adhesion,and proposes a self-healing anti-icing coating for outdoor infrastructures.
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