Durable superhydrophobic materials enabled by abrasion-triggered roughness regeneration

Durable superhydrophobic materials enabled by abrasion-triggered roughness regeneration Chemical Engineering Journal 336 (2018) 633–639 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Short communication Durable superhydrophobic materials enabled by abrasion-triggered roughness regeneration a,b b b b a a,b, Xin Huang , Xian Kong , Yiwen Cui , Xiaoxia Ye , Xiaoling Wang , Bi Shi Department of Biomass Chemistry and Engineering, Sichuan University, Chengdu 610065, China National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Roughness derived from micro/nanostructures is a prerequisite for achieving superhydrophobic surfaces. Collagen fibrils However, such surfaces are mechanically weak and readily abraded by abrasion. Retaining superhydrophobicity Structural hierarchy under abrasion remains the biggest challenge for developing superhydrophobic materials. In nature, the Cross-scale structural deformation mammal skins can accommodate the external stress through efficient cross-scale structural deformations. Durable superhydrophobicity Inspired by these biomechanics, we have created a durable superhydrophobic surface that takes abrasion itself as Self-repair of roughness trigger to active cross-scale structural deformations from microscale to nanoscale, which makes immediate and in-situ self-repair to the damaged roughness, showing roughness regeneration capability with retained extra- ordinary superhydrophobicity after finger-wipe, hammer-punch, screwdriver-scratch, knife-cut and sandpaper abrasion. Guided http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Engineering Journal Elsevier

Durable superhydrophobic materials enabled by abrasion-triggered roughness regeneration

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
1385-8947
eISSN
1873-3212
D.O.I.
10.1016/j.cej.2017.12.036
Publisher site
See Article on Publisher Site

Abstract

Chemical Engineering Journal 336 (2018) 633–639 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Short communication Durable superhydrophobic materials enabled by abrasion-triggered roughness regeneration a,b b b b a a,b, Xin Huang , Xian Kong , Yiwen Cui , Xiaoxia Ye , Xiaoling Wang , Bi Shi Department of Biomass Chemistry and Engineering, Sichuan University, Chengdu 610065, China National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Roughness derived from micro/nanostructures is a prerequisite for achieving superhydrophobic surfaces. Collagen fibrils However, such surfaces are mechanically weak and readily abraded by abrasion. Retaining superhydrophobicity Structural hierarchy under abrasion remains the biggest challenge for developing superhydrophobic materials. In nature, the Cross-scale structural deformation mammal skins can accommodate the external stress through efficient cross-scale structural deformations. Durable superhydrophobicity Inspired by these biomechanics, we have created a durable superhydrophobic surface that takes abrasion itself as Self-repair of roughness trigger to active cross-scale structural deformations from microscale to nanoscale, which makes immediate and in-situ self-repair to the damaged roughness, showing roughness regeneration capability with retained extra- ordinary superhydrophobicity after finger-wipe, hammer-punch, screwdriver-scratch, knife-cut and sandpaper abrasion. Guided

Journal

Chemical Engineering JournalElsevier

Published: Mar 15, 2018

References

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