Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (1): 131-141.DOI: 10.19894/j.issn.1000-0518.210490

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Liquid⁃like Dynamic Interfacial Materials: Recent Progress on Their Applications

FAN Yue,TIAN Xue-Lin()   

  1. School of Materials Science and Engineering,Sun Yat-sen University,Guangzhou 510006,China
  • Received:2021-10-03 Accepted:2021-11-05 Published:2022-01-01 Online:2022-01-10
  • Contact: Xue-Lin TIAN
  • About author:tianxuelin@mail.sysu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21872176);the Pearl River Talents Program(2017GC010671)

Abstract:

Liquid-like dynamic interface materials, as a sort of emerging liquid-repellent interface materials, have attracted extensive attention due to the advantages of stable exclusion and low hysteresis when liquids with widespread surface tension moving on the surface. The main preparation strategy for liquid-like dynamic interface materials, is to graft a class of flexible polymer brush with low glass transition temperature on the surface. As these molecular chains are free to rotate and move, liquids on the surface exhibit low hysteresis, low adhesion, and high slip possibility. These performances are crucial when practical applications are in consideration. First, micro-nano rough structures are not necessary for liquid-like coatings. Second, there is no lubricant consumption since the nano-scale slippery coating is covalently bonded on the surface. Third, omniphobicity for liquids with widespread surface tension is shown on liquid-like surface. Hence, liquid-like dynamic interface materials have shown broad application prospects. Studies on liquid-like surface range from traditional hydrophobic and oleophobic applications to industrial scenarios such as microscopically lossless liquid transport, condensation heat transfer, anti-scaling, anti-icing and high-performance membrane separation. This paper reviews the recent research progress with emphasis on the emerging applications of liquid-like dynamic interface materials, and their prospects are given.

Key words: Liquid-like dynamic interface materials, Flexible molecular chains, Low adhesion, Low contact angle hysteresis, Interface slippage

CLC Number: