J4 ›› 2014, Vol. 11 ›› Issue (3): 325-345.doi: 10.1016/S1672-6529(14)60047-0

• 论文 •    下一篇

Interfacial Effects of Superhydrophobic Plant Surfaces: A Review

Guiyuan Wang1, Zhiguang Guo1,2, Weimin Liu2   

  1. 1. Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials and Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062, P. R. China.
    2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou 730000, P. R. China
  • 出版日期:2014-06-30
  • 通讯作者: Zhiguang Guo E-mail:zguo@licp.cas.cn

Interfacial Effects of Superhydrophobic Plant Surfaces: A Review

Guiyuan Wang1, Zhiguang Guo1,2, Weimin Liu2   

  1. 1. Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials and Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials, Hubei University, Wuhan 430062, P. R. China.
    2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou 730000, P. R. China
  • Online:2014-06-30
  • Contact: Zhiguang Guo E-mail:zguo@licp.cas.cn

摘要:

Nature is a huge gallery of art involving nearly perfect structures and properties over the millions of years of development. Many plants and animals show water-repellent properties with fine micro-structures, such as lotus leaf, water skipper and wings of butterfly. Inspired by these special surfaces, the artificial superhydrophobic surfaces have attracted wide attention in both basic research and industrial applications. The wetting properties of superhydrophobic surfaces in nature are affected by the chemical compositions and the surface topographies. So it is possible to realize the biomimetic superhydrophobic surfaces by tuning their surface roughness and surface free energy correspondingly. This review briefly introduces the physical-chemical basis of superhydrophobic plant surfaces in nature to explain how the superhydrophobicity of plant surfaces can be applied to different biomimetic functional materials with relevance to technological applications. Then, three classical effects of natural surfaces are classified: lotus effect, salvinia effect, and petal effect, and the promising strategies to fabricate biomimetic su-perhydrophobic materials are highlighted. Finally, the prospects and challenges of this area in the future are proposed.

关键词: interfacial effects, superhydrophobicity, plant leaves, contact angle, bionics

Abstract:

Nature is a huge gallery of art involving nearly perfect structures and properties over the millions of years of development. Many plants and animals show water-repellent properties with fine micro-structures, such as lotus leaf, water skipper and wings of butterfly. Inspired by these special surfaces, the artificial superhydrophobic surfaces have attracted wide attention in both basic research and industrial applications. The wetting properties of superhydrophobic surfaces in nature are affected by the chemical compositions and the surface topographies. So it is possible to realize the biomimetic superhydrophobic surfaces by tuning their surface roughness and surface free energy correspondingly. This review briefly introduces the physical-chemical basis of superhydrophobic plant surfaces in nature to explain how the superhydrophobicity of plant surfaces can be applied to different biomimetic functional materials with relevance to technological applications. Then, three classical effects of natural surfaces are classified: lotus effect, salvinia effect, and petal effect, and the promising strategies to fabricate biomimetic su-perhydrophobic materials are highlighted. Finally, the prospects and challenges of this area in the future are proposed.

Key words: interfacial effects, superhydrophobicity, plant leaves, contact angle, bionics