Hierarchical surfaces for enhanced self-cleaning applications

被引：26

作者：

Fernandez, Ariadna ^{[1
,2
]}

Francone, Achille ^{[1
,2
]}

Thamdrup, Lasse H. ^{[3
]}

Johansson, Alicia ^{[3
]}

Bilenberg, Brian ^{[3
]}

Nielsen, Theodor ^{[3
]}

Guttmann, Markus ^{[4
]}

Sotomayor Torres, Clivia M. ^{[1
,2
,5
]}

Kehagias, Nikolaos ^{[1
,2
]}

机构：

[1] CSIC, Catalan Inst Nanosci & Nanotechnol ICN2, UAB Campus, Barcelona 08193, Spain

[2] Barcelona Inst Sci & Technol, UAB Campus, Barcelona 08193, Spain

[3] NIL Technol ApS, Diplomvej 381, DK-2800 Lyngby, Denmark

[4] Karlsruhe Inst Technol, Inst Microstruct Technol, D-76344 Eggenstein Leopoldshafen, Germany

[5] ICREA, Barcelona 08010, Spain

来源：

JOURNAL OF MICROMECHANICS AND MICROENGINEERING | 2017年 / 27卷 / 04期

关键词：

superhydrophobicity; nanoimprint; hierarchical surface; ROBUST SUPERHYDROPHOBICITY; NANOIMPRINT LITHOGRAPHY; POLYMER; ROUGHNESS; IMPRINT; MICRO; MOLD; NANO;

D O I：

10.1088/1361-6439/aa62bb

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this study we present a flexible and adaptable fabrication method to create complex hierarchical structures over inherently hydrophobic resist materials. We have tested these surfaces for their superhydrophobic behaviour and successfully verified their self-cleaning properties. The followed approach allow us to design and produce superhydrophobic surfaces in a reproducible manner. We have analysed different combination of hierarchical micro-nanostructures for their application to self-cleaning surfaces. A static contact angle value of 170 degrees with a hysteresis of 4 degrees was achieved without the need of any additional chemical treatment on the fabricated hierarchical structures. Dynamic effects were analysed on these surfaces, obtaining a remarkable self-cleaning effect as well as a good robustness over impacting droplets.

引用

页数：9

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