Abstract：In order to reduce the preparation cost of the superhydrophobic surface on titanium substrate and improve its durability, sandblasting and anodic oxidization were used to construct a micro/nanometer scale rough surface on pure Ti substrate, and then the superhydrophobic surface was obtained via further modification by fluorine carbon varnish. The chemical composition, morphology, wettability and environment durability of the superhydrophobic surface were investigated by FTIR, FE-SEM and contact angle measurement respectively. The results show that the structure at micron level is fabricated by sandblasting while the nano-web structure is prepared by anodizing. After modified by fluorine carbon varnish, this micro/nanometer scale rough surface contained masses of fluoride groups and attains superhydrophobicity. The superhydrophobic surface has a static contact angle of 162°±2.3° with the sliding angle of 2.1°±0.2° and shows excellent air and seawater durability.
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