Water-Excluding Underwater Glue Induced by Marangoni Effect  

作　　者：Ke Zhang Xizi Wan Zi-Yu Liu Feilong Zhang Jingwei Lu Jingxin Meng Ye Tian Haeshin Lee Lei Jiang Shutao Wang 

机构地区：[1]CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190 [2]Green Catalysis Center,College of Chemistry,Zhengzhou University,Zhengzhou 450001 [3]University of Chinese Academy of Sciences,Beijing 100049 [4]Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190 [5]Beijing Key Laboratory for Bioengineering and Sensing Technology,School of Chemistry and Biological Engineering,University of Science and Technology Beijing,Beijing 100083 [6]The Graduate School of Nanoscience and Technology,Korea Advanced Institute of Science and Technology(KAIST),Daejeon 34141

出　　处：《CCS Chemistry》2024年第5期1289-1299,共11页中国化学会会刊（英文）

基　　金：supported by the National Key R&D Program of China(project nos.2018YFA0209500 and 2019YFA0709300);the National Natural Science Foundation of China(grant nos.21621091,21972155,21975209,22005255,22035008,52025132,and 22205244);Projects of International Cooperation and Exchanges Natural Science Foundation of China(NSFC,grant no.1A1111KYSB20200010);National Program for Special Support of Eminent Professionals and the Fundamental Research Funds for Central Universities(grant no.20720190037);the China Postdoctoral Science Foundation(grant no.2022M713225).

摘　　要：Marangoni effect at the two-phase interface with different surface tension as a unique mass transfer phenomenon has been widely used in daily life and industrialmanufacture.However,their marvelous liquid-driving capability between miscible liquids has long been ignored,especially in water environments.Here,we first reveal a distinct underwater Marangoni effect between the solvent of glues and the water layer on solid surfaces.Driven by the Marangoni effect,organic solvents with water solubility,high dielectric constant,and low diffusivity could effectively exclude the interfacial water layer,enabling direct and effective contact between glues and solid surfaces.Our experimental results and theoretical simulation proved that a relatively large ratio of the Marangoni number in the horizontal direction and to the vertical direction ensured an effective underwater adhesion of the water-excluding glue.This surface engineering approach provides an alternative to the traditional methods of molecular engineering for realizing underwater adhesion.

关 键 词：Marangoni effect underwater adhesion dynamic water-excluding water layer solvent diffusion 

分 类 号：O35[理学—流体力学]