为了研究加工环境对铝板浸润性的影响, 在真空和空气两种不同加工环境下进行了激光诱导加工铝板。使用光学表面轮廓仪、扫描电子显微镜(SEM), 对比分析了样品表面微观结构的区别; 使用接触角测量仪, 对比分析了真空和空气不同加工环境、不同储存环境对样品表面浸润性的影响。结果表明, 相同激光参数下, 相对于空气加工环境, 在真空加工环境下样品表面粗糙度更小。同时, 空气加工环境下的样品具有从超亲水转变为疏水甚至超疏水的性能, 而真空加工环境下的样品能够始终保持良好的亲水性能, 但空气环境下加工后, 真空储存环境更有利于样品表面浸润性的转变, 可大大提高制备超疏水铝板的效率。

In order to study the influence of the processing environment on the infiltration property of laser-induced aluminum plates, pure aluminum plates were processed with a nanosecond laser under vacuum and air atmosphere, respectively. The effects of vacuum and air atmosphere on the surface microstructure of the laser-induced aluminum sheets were compared and analyzed by using an optical surface profilometer and a scanning electron microscope (SEM). The effects of vacuum and air different processing environments and different storage environments on the infiltration property of the sample were compared and analyzed by a contact angle measuring instrument. The results show that under the same laser parameters, the surface roughness of the sample processed in the vacuum environment is obviously smaller than that processed in the air. While the samples processed in the air environment have the property of changing from super-hydrophilic to hydrophobic or even super-hydrophobic, the samples processed in the vacuum environment keep constant hydrophilic properties. Moreover, samples processed with laser in the air and then heat-treated in vacuum are more favorable for the conversion of their infiltration properties, which can greatly improve the efficiency of preparing the super-hydrophobic aluminum plate.