中文摘要：

主要介绍了在150℃水热反应条件下以铝为基底制备海胆状γ—MnOz超疏水表面的方法．通过X射线衍射（XRD）、扫描电子显微镜（SEM）、接触角（CA）和滚动角（SA）测试，研究了该种表面的物质组成、微观形貌以及疏水性能．测试结果显示该表面的接触角最高为164．3°，同时滚动角小于5°，达到了超疏水表面的要求。并对制得的表面在～10℃的冰箱环境下进行了防覆冰测试，证明了该表面具有延迟水滴结冰的作用。

英文摘要：

An urchin-like superhydrophobic γ-MnO2 film was successfully prepared via a facile hydrotherreal reaction method at 150 ℃ on the aluminum substrates after the simple cherhical modification. The surface morphology, composition and wetting performance were studied using scanning electron microscopy （SEM）, X-ray diffraction {XRD}, and contact angle measurement, respectively. The results showed that the modified γ-MnOz films exhibited extraordinary superhydrophobicity with a water contact angle of 164.3° as well as a small sliding angle of 5°. Icing behavior of the surfaces was investigated at a working temperature of -10 ℃. The experiments on the freezing time of the different surfaces demonstrated well that such prepared films can largely delay ice formation on the surface.