ABSTRACT

An innovative low-cost method of aluminium surface treatment to obtain stable superhydrophobic properties is presented. An aluminium anodising method was combined with surface abrasive blasting as a mechanical pre-treatment to obtain combined microscale roughness and nonporous surface structure. The produced layer was impregnated with fatty acid. The surface morphology was examined by SEM and optical microscopy. The influence of the process parameters on the wettability of the aluminium surface was investigated. The features of the prepared samples were tested in terms of the durability of the coating. The test results confirm the stable superhydrophobic properties of the obtained layers with contact angle larger than 150° and roll-off angle less than 5°.

摘要

提出了一种创新的低成本铝表面处理方法，以获得稳定的超疏水性能。将铝阳极氧化方法与表面喷砂处理相结合作为机械预处理，以获得组合的微观粗糙度和无孔表面结构。产生的层用脂肪酸浸渍。通过SEM和光学显微镜检查表面形态。研究了工艺参数对铝表面润湿性的影响。就涂层的耐久性测试了所制备样品的特征。测试结果证实了所获得的层的稳定的超疏水性，其接触角大于150°并且滚落角小于5°。