Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 587, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2019.124343
Keywords
Laser irradiation in solution; Cavitation bubble; Porous structure; Chemical reaction; Corrosion resistance
Categories
Funding
- National Key R&D Program of China [2017YFB1104700]
- Program of International ST Cooperation [2016YFE0112100, MNR4SCell 734174]
- National Natural Science Foundations of China [51675371, 51675376, 51675367]
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This work aims to propose a newly-emerged method using laser irradiation in liquid for the fabrication of metal-organic highly hydrophobic aluminum surface with excellent corrosion resistant performance. The corrosion results revealed that the laser-induced porous structure with ovoid-like particles, and simultaneously integration of low-free-energy functional groups (-CH2, -CF2 and -CF3) contributed to the super-hydrophobicity, enhancing corrosion resistance due to the effect of Laplace pressure and air-cushion formation within the porous structures. The possible chemical reactions during laser irradiation process in liquid were proposed. The explosive ejection mechanism was proposed to explain the generation of micro/nano particles with inherent pores. This facile approach offers a new route to fabricate super-hydrophobic surface with excellent mitigation of metallic corrosion.
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