Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser

Solid–liquid frictional resistance is mainly attributed to the adhesion caused by the boundary layer effect. Superhydrophobic surfaces are expected to be an effective method to reduce frictional resistance. In this paper, a rod-shaped micro-structure was prepared on surfaces of Al alloy (5083) and T...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Zhi Li, Gang Xue, Yanming Wu, Xinghua Wang, Hengpei Pan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laser material properties rod-shaped micro-structure superhydrophobicity Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/6f4ce7494351419dbc7dffda2f818252
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6f4ce7494351419dbc7dffda2f818252
record_format	dspace
spelling	oai:doaj.org-article:6f4ce7494351419dbc7dffda2f8182522021-11-25T17:17:34ZPreparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser10.3390/cryst111112742073-4352https://doaj.org/article/6f4ce7494351419dbc7dffda2f8182522021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1274https://doaj.org/toc/2073-4352Solid–liquid frictional resistance is mainly attributed to the adhesion caused by the boundary layer effect. Superhydrophobic surfaces are expected to be an effective method to reduce frictional resistance. In this paper, a rod-shaped micro-structure was prepared on surfaces of Al alloy (5083) and Ti alloy (TC4) by line-by-line scanning with nanosecond laser. The inherent properties of the metal materials—such as their coefficient of thermal conductivity (CTC) and specific heat capacity (SHC)—had a major influence on the surface morphology and shape size of the rod-shaped micro-structure. Both two metals showed apparent oxidation on their surfaces during laser ablation, however, the degree of surface oxidation of the Al alloy was greater than that of the Ti alloy due to its more fragmentary rod-shaped micro-structure. The laser-treated surfaces could turn from hydrophilic to hydrophobic or even superhydrophobic after being left in the air for 20 days, which might be caused by the adsorption of low-surface energy matter in the air. In addition, the contact angle of the Al alloy was larger than that of the Ti alloy, which is due to the larger ratio of height to width of the micro–nano composite rod-shaped micro-structure on the surface of the Al alloy.Zhi LiGang XueYanming WuXinghua WangHengpei PanMDPI AGarticlelasermaterial propertiesrod-shaped micro-structuresuperhydrophobicityCrystallographyQD901-999ENCrystals, Vol 11, Iss 1274, p 1274 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser material properties rod-shaped micro-structure superhydrophobicity Crystallography QD901-999
spellingShingle	laser material properties rod-shaped micro-structure superhydrophobicity Crystallography QD901-999 Zhi Li Gang Xue Yanming Wu Xinghua Wang Hengpei Pan Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
description	Solid–liquid frictional resistance is mainly attributed to the adhesion caused by the boundary layer effect. Superhydrophobic surfaces are expected to be an effective method to reduce frictional resistance. In this paper, a rod-shaped micro-structure was prepared on surfaces of Al alloy (5083) and Ti alloy (TC4) by line-by-line scanning with nanosecond laser. The inherent properties of the metal materials—such as their coefficient of thermal conductivity (CTC) and specific heat capacity (SHC)—had a major influence on the surface morphology and shape size of the rod-shaped micro-structure. Both two metals showed apparent oxidation on their surfaces during laser ablation, however, the degree of surface oxidation of the Al alloy was greater than that of the Ti alloy due to its more fragmentary rod-shaped micro-structure. The laser-treated surfaces could turn from hydrophilic to hydrophobic or even superhydrophobic after being left in the air for 20 days, which might be caused by the adsorption of low-surface energy matter in the air. In addition, the contact angle of the Al alloy was larger than that of the Ti alloy, which is due to the larger ratio of height to width of the micro–nano composite rod-shaped micro-structure on the surface of the Al alloy.
format	article
author	Zhi Li Gang Xue Yanming Wu Xinghua Wang Hengpei Pan
author_facet	Zhi Li Gang Xue Yanming Wu Xinghua Wang Hengpei Pan
author_sort	Zhi Li
title	Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
title_short	Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
title_full	Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
title_fullStr	Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
title_full_unstemmed	Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser
title_sort	preparation of superhydrophobic surfaces based on rod-shaped micro-structure induced by nanosecond laser
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6f4ce7494351419dbc7dffda2f818252
work_keys_str_mv	AT zhili preparationofsuperhydrophobicsurfacesbasedonrodshapedmicrostructureinducedbynanosecondlaser AT gangxue preparationofsuperhydrophobicsurfacesbasedonrodshapedmicrostructureinducedbynanosecondlaser AT yanmingwu preparationofsuperhydrophobicsurfacesbasedonrodshapedmicrostructureinducedbynanosecondlaser AT xinghuawang preparationofsuperhydrophobicsurfacesbasedonrodshapedmicrostructureinducedbynanosecondlaser AT hengpeipan preparationofsuperhydrophobicsurfacesbasedonrodshapedmicrostructureinducedbynanosecondlaser
_version_	1718412536758403072

Preparation of Superhydrophobic Surfaces Based on Rod-Shaped Micro-Structure Induced by Nanosecond Laser

Ejemplares similares