接触角
材料科学
润湿
扫描电子显微镜
钛
粘附
纳米技术
表面改性
纳米结构
钛合金
合金
阳极氧化
化学工程
复合材料
冶金
阳极
电极
化学
物理化学
工程类
作者
Xiao Zhang,Yi Wan,Bing Ren,Hongwei Wang,Mingzhi Yu,Anqi Liu,Zhanqiang Liu
出处
期刊:Micromachines
[Multidisciplinary Digital Publishing Institute]
日期:2020-03-17
卷期号:11 (3): 316-316
被引量:36
摘要
The superhydrophobic surface has a great advantage of self-cleaning, inhibiting bacterial adhesion, and enhancing anticoagulant properties in the field of biomedical materials. In this paper, a superhydrophobic surface was successfully prepared on titanium alloy via high-speed micro-milling, anodic oxidation and fluoroalkylsilane modification. The surface morphology was investigated by scanning electron microscope and a laser scanning microscope. The surface wettability was investigated through the sessile-drop method. Firstly, regular microgrooves were constructed by micro-milling. Then, nanotube arrays were fabricated by anodic oxidation. Afterwards, fluoroalkylsilane was used to self-assemble a monolayer on the surface with a composite micro/nanostructure. Compared to polished titanium samples, the modified samples exhibited superhydrophobic properties with the water contact angle (CA) of 153.7° and the contact angle hysteresis of 2.1°. The proposed method will provide a new idea for the construction of superhydrophobic titanium surgical instruments and implants in the future.
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