Ultrasonic vibration assisted laser (UVAL) treatment of copper for superhydrophobicity

In this paper, a hybrid ultrasonic vibration assisted laser (UVAL) prepared copper surface of super-hydrophobic was reported. After UVAL treatment, the water contact angle (WCA) of copper surface to 3 μL water was 157.4°and the water slip angle (WSA) was less than 10°. The wettability, microstructur...

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Bibliographic Details
Published in:Surface & coatings technology 2021-09, Vol.421, p.127386, Article 127386
Main Authors: Zhao, Menglei, Yang, Zeng, Zhao, Jingnan, Shrotriya, Pranav, Wang, Yan, Cui, Yuanchen, Guo, Zhiquan
Format: Article
Language:English
Subjects:
Airborne lasers
Chemical composition
Contact angle
Copper
Field emission microscopy
Hydrophobic surfaces
Hydrophobicity
Laser treatment
Lasers
Measuring instruments
Micro-structure
Morphology
Super-hydrophobic
Surface energy
Ultrasonic vibration
Wettability
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Summary:In this paper, a hybrid ultrasonic vibration assisted laser (UVAL) prepared copper surface of super-hydrophobic was reported. After UVAL treatment, the water contact angle (WCA) of copper surface to 3 μL water was 157.4°and the water slip angle (WSA) was less than 10°. The wettability, microstructure, chemical composition and durability of copper surface were measured by contact angle measuring instrument, field emission scanning electron microscopy (FESEM), surface predatory X-ray diffraction (XRD) and three-dimensional morphology. The results revealed that after UVAL treatment, the microcoral-like structure and nano-grass structure were formed on the surface of the sample, which were similar to the surface of lotus leaf. Ultrasonic vibration combined with laser treatment can accelerate the adsorption of airborne hydrocarbon contaminations on the surface of micro and nanostructures, and reduce the surface energy of copper particles on the surface. This study provides a fast, convenient and effective method for the rapid preparation of stable superhydrophobic copper surface. [Display omitted] •A Novel hybrid ultrasonic vibration assisted laser (UVAL) treated copper with a super-hydrophobic surface is reported.•The hybrid UVAL treatment could process the super-hydrophobic copper surface without further treatment.•After the UVAL treatment, the WCA of the copper surface is 157.4° and the WSA is less than 10°.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2021.127386