Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser

doi:10.1007/s42235-019-0098-0

Journal of Bionic Engineering ›› 2019, Vol. 16 ›› Issue (5): 806-813.doi: 10.1007/s42235-019-0098-0

Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser

Chenbin Ma, Min Kang*, Xingsheng Wang*, Ninghui Li, Wei Hong, Chenyu Li, An Yang

College of Engineering, Nanjing Agricultural University, Nanjing 210031, China

收稿日期:2019-01-26 修回日期:2019-08-12 接受日期:2019-08-19 出版日期:2019-10-10 发布日期:2019-10-15
通讯作者: Min Kang, Xingsheng Wang E-mail:kangmin@njau.edu.cn, xingshengwang@njau.edu.cn
作者简介:Chenbin Ma, Min Kang, Xingsheng Wang, Ninghui Li, Wei Hong, Chenyu Li, An Yang

Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser

Chenbin Ma, Min Kang*, Xingsheng Wang*, Ninghui Li, Wei Hong, Chenyu Li, An Yang#br#

#br#

College of Engineering, Nanjing Agricultural University, Nanjing 210031, China

Received:2019-01-26 Revised:2019-08-12 Accepted:2019-08-19 Online:2019-10-10 Published:2019-10-15
Contact: Min Kang, Xingsheng Wang E-mail:kangmin@njau.edu.cn, xingshengwang@njau.edu.cn
About author:Chenbin Ma, Min Kang, Xingsheng Wang, Ninghui Li, Wei Hong, Chenyu Li, An Yang

摘要/Abstract

摘要： Hierarchical structures significantly influence the development of metal surface wettability. In this study, three kinds of hierarchical structures formed by the superimposition of different nanoscale (quasi-) periodic structures on micro-column arrays were fabricated on 304 stainless steel surfaces via picosecond laser irradiation. Scanning Electron Microscope (SEM) and Confocal Laser Scanning Microscope (CLSM) were used to characterize the created hierarchical structures. An optical contact angle meter was used to analyse the wetting performances. The results show that the surfaces of these fabricated samples have superhydrophobic properties and strong adhesion per-formances, which can be attributed to the formation of hierarchical structure that causes a reduction in the liquid-solid contact area and the change in the direction of surface tension. By controlling the dimensionof the nanotextures on the micro-column arrays, the hydrophobic property of 304 stainless steel surfaces can be greatly improved.

关键词: superhydrophobic, hierarchical structure, laser irradiation, bioinspiration, texture, adhesion, stainless steel

Abstract: Hierarchical structures significantly influence the development of metal surface wettability. In this study, three kinds of hierarchical structures formed by the superimposition of different nanoscale (quasi-) periodic structures on micro-column arrays were fabricated on 304 stainless steel surfaces via picosecond laser irradiation. Scanning Electron Microscope (SEM) and Confocal Laser Scanning Microscope (CLSM) were used to characterize the created hierarchical structures. An optical contact angle meter was used to analyse the wetting performances. The results show that the surfaces of these fabricated samples have superhydrophobic properties and strong adhesion per-formances, which can be attributed to the formation of hierarchical structure that causes a reduction in the liquid-solid contact area and the change in the direction of surface tension. By controlling the dimensionof the nanotextures on the micro-column arrays, the hydrophobic property of 304 stainless steel surfaces can be greatly improved.

Key words: superhydrophobic, hierarchical structure, laser irradiation, bioinspiration, texture, adhesion, stainless steel

Chenbin Ma, Min Kang, Xingsheng Wang, Ninghui Li, Wei Hong, Chenyu Li, An Yang. Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser[J]. Journal of Bionic Engineering, 2019, 16(5): 806-813.

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Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser

Fabrication of Regular Hierarchical Structures with Superhydrophobic and High Adhesion Performances on a 304 Stainless Steel Surface via Picosecond Laser

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