纳秒激光诱导铝板表面超疏水微纳结构  

Super-Hydrophobic Micro-Nano Structures on Aluminum Surface Induced by Nanosecond Laser

作　　者：杨奇彪[1] 刘少军[1] 汪于涛 汪幸[1] 陈列[1] 郑重[1] 娄德元[1] 陶青 翟中生[1] Peter Bennett 刘顿[1] 

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068

出　　处：《激光与光电子学进展》2017年第9期248-253,共6页Laser & Optoelectronics Progress

基　　金：国家科技支撑计划(2015BAF20B03);国家自然科学基金(51405141);湖北省科技支撑计划(2015BAA066);湖北省教育厅项目(Q20151404;T201405;D20161406);湖北工业大学科研启动金项目(337028)

摘　　要：提出了一种利用纳秒光纤激光快速制备超疏水铝板表面的方法,对样品表面的接触角和粗糙度进行了测量。烘烤处理激光加工后的样品,得到了一系列具有不同润湿性能的铝板表面,增加激光能量密度可得到超疏水表面。研究结果表明,增加激光能量密度除了能提高铝板表面的粗糙度,还会形成明显的微纳二级结构;空气占铝板超疏水复合接触面总面积的90%以上;纳秒激光诱导铝板超疏水表面是微纳结构和化学成分共同作用的结果。One method to fabricate super-hydrophobic aluminum surfaces by using nanosecond fiber lasers is proposed.After the laser-processed samples are baked,a series of aluminum surfaces with different wetting properties are obtained.A super-hydrophobic surface can be obtained by increasing the laser fluence.The study results show that,with the increase of laser fluence,not only the aluminum surface roughness increases,but also a clear micro-nano two-level structure is formatted.The area ratio between air and the total area of the superhydrophobic aluminum composite contact surface is 90%.The super-hydrophobic surface induced by nanosecond laser is attributed to the coaction of micro-nano structures and chemical compositions.

关 键 词：激光技术 超疏水表面 纳秒激光 微纳结构 

分 类 号：TN249[电子电信—物理电子学]