喷砂-阳极氧化法构建分形超疏水Ti6Al4V表面及性能研究

Fabrication and properties of the hierarchical superhydrophobic Ti6Al4V surfaces by sand-blasting and anodic oxidation

主要采用喷砂-阳极氧化法在Ti6Al4V钛合金表面构建微纳二级复合结构,使用低表面能物质FAS-17(十七氟硅烷)修饰后可获得超疏水表面。结果显示,喷砂形成的微米级凸台与阳极氧化形成的纳米管复合结构表面的液滴接触角达到了159.8°。在空气中放置30d后,仍然具有优异的超疏水性能,并具有一定的耐盐水性能。

The main purpose of this paper was to fabricate the superhydrophobic surfaces by modifying the micro-nanostructures(constructed by the combination of sand-blasting and anodic oxidation)with the FAS-17.The results showed that the contact angle of a 4μL droplet on the superhydrophobic surface reaches 159.8°,and after exposing 30 din the air,the water repellency did not decay at all.Furthermore,the superhydrophobic surface also had high durability in NaCl solution.