摘要
利用不同功率密度的微秒激光在6061铝合金表面刻蚀出圆柱状粗糙结构,将刻浊后的粗糙铝合金片置于110℃干燥箱保持12h,通过液滴形状分析仪、扫描电子显微镜、光学轮廓仪、X射线光电子能谱仪等表征表面粗糙结构以及加热处理前后润湿性、表面元素、基团、晶体结构的变化。实验结果显示,微秒激光刻蚀的粗糙铝合金表面具有微/纳米复合结构,经热处理后表面羟基(-OH)减少,而非极性组分C-C(H)是粗糙铝合金表面吸附空气中有机物的主要组分,并且热处理加快了吸附过程,从而使粗糙铝合金表面润湿性发生变化,由超亲水表面转化为超疏水表面。
The cylindrical rough structure was etched on the surface of 6061 aluminum alloy by microsecond laser with different power densities,and the etched rough aluminum alloy sheet was kept in a drying oven at llO℃for 12 hours.The surface rough structures,and the changes of the wettability,surface element,group,and crystal structure before and after heat treatment were characterized by droplet shape analyzer,scanning electron microscope,optical profiler,and X-ray photoclectron spectroscopy.Experimental results show that the rough aluminum alloy surface etched by microsecond laser has a micro/nano composite structure,and the amount of hydroxyl(—OH)on the surface is reduced after heat treatment.The non-polar component(C—C(H))is the main component of organics adsorbed on the aluminum alloy surface,and the heat treatment accelerates the adsorption process,which changes the wettability of the rough aluminum alloy surface from the superhydrophili surface to the superhydrophobic surface.
作者
郑晓光
丁云飞
吴云军
Zheng Xiaoguang;Ding Yunfei;Wu Huijun(School of Civil Engineering,Gutwgzhou University,Guangzhou,Guangdowg 510006,China;Guangidong Protincial Key Latboratory of Building Eiuergy Efficiency aud Applicatiou Technologies,Guctwgzlou,Guawg8ong 510006,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第15期141-148,共8页
Laser & Optoelectronics Progress
基金
国家自然科学基金(51878187)。
关键词
激光光学
激光刻蚀
铝合金
热处理
表面润湿性能
有机物
微/纳米复合结构
laser optics
laser etching
aluminum alloy
heat treatment
surface wettability
organics
micro/nano cormposite structure
作者简介
丁云飞,E-mail:dingyf@126.com。
