South Korea successfully developed super-hydrophobic technology for aluminum alloy surface

The team of Professor Jeong Chan-young (transliteration) from the Department of Metal Materials Engineering at Dongui University in South Korea recently announced that the team has independently developed a super-hydrophobic technology for aluminum alloy surfaces and applied for related patents. This technology achieves super-hydrophobic or hydrophilic properties by precisely controlling the surface structure of metal alloys. Among them, the super-hydrophobic properties of the metal surface can be used to prevent the corrosion of marine vessels and the condensation of automobile and aircraft accessories. At the same time, it can also reduce friction, realize the liquid lubrication of the piping system, and reduce the bacterial adhesion of medical instruments; It can be used for heat exchangers and other accessories to remove odors and improve heat exchange efficiency. Zheng Canying said that it is not easy to maximize the hydrophobicity of metal alloys by changing the metal structure. Existing technologies can also significantly improve the hydrophobicity of aluminum alloy surfaces, but polymer coatings with lower surface energy are required, and Different post-processing methods such as lubricant filling consume a lot of time and cost, which are not conducive to commercial promotion.　　　　 Zheng Canying's team has been committed to the research of aluminum alloy surface treatment technology development and industrial application since 2017. The technology developed this time is called the 'anodization methodThe precisely controlled oxide can make the metal surface have many functions, such as anti-corrosion, anti-icing, anti-frosting, reducing friction, and improving heat resistance, and it will also improve the appearance and color quality. This technology can quickly form mixed nanostructures on a large-area metal surface, is low-cost, and has a certain degree of hydrophobicity, there is no restriction on the size of the material, and the economy is outstanding.　　　　The research team has been committed to research on the hydrophilic and hydrophobic properties of metal surfaces. The relevant research results are expected to be applied to pipe fittings, railings, manholes, lighting accessories in medical, shipbuilding, automotive, aviation and other industries. The team has applied for a total of 15 patents in the past 10 months. It is worth mentioning that some patents have also been successfully applied in the United States. Information source: China Nonferrous Metals News Image source: Internet
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