Directional Liquid Mobility and Interlocking of Anisotropic Micropillar Structures Modulated by Multiple Compressive Bending

The study investigates the deformation of elastomeric surfaces under multiple compressive bending to modify the geometry of micro-hyperbolic pillar arrays, enabling enhanced liquid repellency and tunable interlocking properties. During bending, compressive stress transforms circular microholes into...

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Bibliographic Details
Published inThe Korean journal of chemical engineering Vol. 42; no. 11; pp. 2693 - 2700
Main Authors Koleczko, Mike Jason, Kim, Jihee, Kim, Jaekyoung, Jo, Min-Gi, Yoo, Kee-Youn, Yoon, Hyunsik
Format Journal Article
LanguageEnglish
Published New York Springer US 01.09.2025
Springer Nature B.V
한국화학공학회
Subjects
Arrays
Bending
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Compressive properties
Elastomers
Industrial Chemistry/Chemical Engineering
Locking
Materials Science
Mechanical analysis
Mechanical properties
Original Article
Shear stress
Wetting
화학공학
Directional property
Wetting
Adhesion
Compressive bending
Elastomer
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ISSN0256-1115
1975-7220
DOI10.1007/s11814-025-00458-5

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Summary:The study investigates the deformation of elastomeric surfaces under multiple compressive bending to modify the geometry of micro-hyperbolic pillar arrays, enabling enhanced liquid repellency and tunable interlocking properties. During bending, compressive stress transforms circular microholes into elliptical shapes. By repeating the process of compressive bending and replication, we can achieve highly anisotropic pillar arrays for anisotropic wetting behavior with directional liquid mobility. The bending process modulates pillar-to-pillar spacing along different axes, further facilitating anisotropic liquid movement. Furthermore, interlocking microarray patterns exhibit direction-dependent shear stress, resulting in a distinct mechanical response. These findings highlight a scalable, cost-effective strategy for designing smart surfaces with tailored wetting and mechanical properties, with potential applications in droplet manipulation and specialized adhesives.Author names: Please confirm if the author names are presented accurately and in the correct sequence (Mike Jason Koleczko). Also, kindly confirm the details in the metadata are correct.correct
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ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-025-00458-5