采用硬质阳极氧化技术在铝合金表面制备了微米多孔多级复合结构氧化膜层，研究了多孔结构膜层疏水特性。通过电子显微镜和接触角测量仪分析发现，不同孔结构参数具有不同接触角疏水特性。当获得致密、更小尺度的多级微孔结构时，可以增加表面空气在三相界面中所占的比重，在不进行低能材料修饰情况下，使其表面静态水接触角增加，最大可达到130 o，该结果可以为阳极氧化工业应用提供一定实验参考。%A porous oxide film layer with composite structure was fabricated based on the aluminum alloy surface using optimization hard anode oxidation technology. The hydrophobic properties of the porous membrane layer structure were studied. With analysis of contact angle measurement instrument and electron microscope, the surface of oxidation film prepared in optimized process obtains porous structure with rough morphology and the results show that porous oxide films with different structure have different hydrophobic characteristics. When the surface obtained densify and smaller porous structure,the proportion of air in the three-phase interface will increase. The surface exhibited hydrophobic with-out chemical modification and the static water contact angle was increase to 130 o. These experimental results give the experiment data for the application of anodic oxidation.
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