Wettability conversion of ultrafast laser structured copper surface
By J. Long, M. Zhong, Peixun Fan, Dingwei Gong, Hongjun Zhang. 2015
174 citations recorded by the source corpus.
The wettability of metal oxides is vital to many applications including water erosion, filtration, and bioimplantation. In this work, the authors studied the wettability conversion behavior of picosecond laser structured copper surfaces in different atmospheres. The copper surfaces showed hydrophilicity initially after being irradiated by a picosecond laser. However, when they were stored in ambient air, their contact angles increased over time and became highly hydrophobic finally. The storage atmosphere influenced this process greatly, the atmosphere rich in CO2 or O2 would restrain the wettability transition, but the organic-rich and vacuum atmosphere would accelerate it. Detailed surface chemical analysis revealed that the adsorption of organic matters from the air played an important role in this wettability conversion process.
Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Surfaces, Coatings and Films
View Paper: https://www.semanticscholar.org/paper/9b77e547394f1759d6ea7e675d93f16f9d421f03
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In Biomedical Engineering
In Surfaces, Coatings and Films
Citations in the corpus
- Fabrication of super-hydrophobic nickel film on copper substrate with improved corrosion inhibition by electrodeposition process (2019, background): “10 chemisorbed organic matters from air and the residual oil in the XPS vacuum chamber are other sources to increase the amount of the four abovementioned functional groups [21-22, 33-34].”
- Transition from superhydrophilic to superhydrophobic state of laser textured stainless steel surface and its effect on corrosion resistance (2017, background): “decomposition of carbon dioxide into carbon with active magnetite [21], airborne hydrocarbon contamination and the absorption of organic matters from the atmosphere [27,28], partial surface deoxidation [29] and the creation of hydrophobic functional groups [30].”