采用激光刻蚀技术在钛合金表面分别构筑网格、直线、点阵3种微结构, 采用溶胶-凝胶法将纳米SiO₂粒子涂覆在微结构上, 制备分别具有微结构/微纳结构的疏水/超疏水表面. 利用小球藻附着面积评价表面的抗海洋生物附着性能, 利用动态冲刷实验评价小球藻的附着强度. 结果显示: 具有微结构的疏水/超疏水表面符合Wenzel模型, 具有微纳结构的超疏水表面符合Cassie模型, 且其表面抗附着性能更优, 附着强度更小; 网格表面的超疏水自清洁性能最强, 抗附着性能最优, 附着强度最小, 其次是直线, 再次是点阵; 随着微结构间距的增大, 接触角减小, 滚动角增大, 抗附着性能降低, 附着强度增大.

Laser etching technique was used to build three microstructures of grid, line and dot on Ti6Al4V alloy surface, and sol-gel method was used to coat SiO₂ nanoparticles on the microstructure to build the hydrophobic/superhydrophobic surface with the micro/micro-nano structure. Adhesion area of the chlorella on the surfaces was used to evaluate the antifouling performance of the halobios, and dynamic wash test was used to evaluate the adhesion strength of the chlorella. It is shown that the hydrophobic/superhydrophobic surfaces with the microstructure are in accordance with Wenzel model, the superhydrophobic surfaces with the micro-nano structure are in accordance with Cassie model, and have stronger antifouling and less adhesion strength. The grid surfaces have the strongest superhydrophobic and self-cleaning performance, flowed by the line surfaces and then the dot surfaces. The contact angles decrease, the roll angles increase, the antifouling performance gets small and the adhesion strength increase with the increment of space of the microstructure.