Premium
Extremely Ice‐Detached Array of Pine Needle‐Inspired Concave‐Cone Pillars
Author(s) -
Guo Zhenyu,
Peng Bo,
Liu Yufang,
Li Jinghui,
Pei Wenle,
Li Qunyang,
Zheng Yongmei
Publication year - 2020
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201901714
Subject(s) - conical surface , materials science , icing , pillar , cone (formal languages) , composite material , structural engineering , computer science , geology , engineering , algorithm , oceanography
Inspired by the features of natural pine needle, a superhydrophobic concave‐cone pillar surface (CCPS) is designed by using polymer via soft lithography and printing methods. CCPS has the characterizes of unique flexible performance and concave conical geometry to lower adhesion between liquid/ice–solid interfaces, thus as‐frozen ice droplet can be easily detached by tilting or a slight shear flow. Comparing to normal cone pillar surface, CCPS achieves excellent deicing ability, attributed to unique antipinning effect between ice and concave‐cone pillars, which is demonstrated by force characterization. This finding offers an insight into design of novel icephobic/anti‐icing surfaces and materials that can be extended into some applied realms for solving icing problems, e.g., transmission line, traffic road, aircraft wing, etc.