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Facile laser-based process of superwetting zirconia ceramic with adjustable adhesion for self-cleaning and lossless droplet transfer

文献类型： 外文期刊

作者： Liu, Chao 1 ; Zheng, Junjie 1 ; Liu, Xiangfeng 1 ; Yin, Kai 2 ; Wang, Huixin 4 ; Wang, Qinghua 1 ;

作者机构： 1.Southeast Univ, Sch Mech Engn, Nanjing 211189, Peoples R China

2.Cent South Univ, Sch Phys & Elect, Hunan Key Lab Nanophoton & Devices, Changsha 410083, Peoples R China

3.Cent South Univ, Coll Mech & Elect Engn, State Key Lab Precis Mfg Extreme Serv Performance, Changsha 410083, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Nanjing 210014, Peoples R China

5.Minist Agr & Rural Affairs, Key Lab Protected Agr Engn Middle & Lower Reaches, Nanjing 210014, Peoples R China

关键词： Zirconia ceramics; Laser surface texturing; Superwetting; Adjustable adhesion; Droplet transfer

期刊名称：APPLIED SURFACE SCIENCE （ 影响因子：6.7； 五年影响因子：6.2 ）

ISSN： 0169-4332

年卷期： 2023 年 638 卷

页码：

收录情况： SCI

摘要： Zirconia ceramics can be extensively used as biological implant materials because of its excellent mechanical properties and biocompatibility. In order to further enhance the biocompatibility of zirconia ceramics and its application in oral medicine, a nanosecond laser-silicone oil-heat treatment (LSH) composite process was designed to fabricate superhydrophobic zirconia ceramic surfaces with adjustable adhesion to water droplet. The surface topography, chemical composition and wettability of zirconia ceramic surfaces were characterized. The experimental results indicated that the wettability and adhesion of water droplets on zirconia ceramic surfaces were significantly affected by the surface morphology and density of surface micro/nanostructures. The relative content of chemical elements and polar/non-polar functional groups on the surfaces could be changed as the process parameters changed, which would also affect the transition of surface wettability. Meanwhile, the adhesion of water droplets on the zirconia ceramic surfaces could be precisely regulated by changing the laser texturing parameters. Droplet lossless transport and self-cleaning effect were demonstrated, which could provide a key avenue for the application of superhydrophobic zirconia ceramics in biological implants.

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