激光与光电子学进展, 2020, 57 (15): 151406, 网络出版: 2020-08-04
热处理后激光刻蚀铝合金表面润湿性的研究 
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Surface Wettability of Aluminum Alloy Surface by Laser Etching After Heat Treatment
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 composite structure
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,将刻蚀后的粗糙铝合金片置于110 ℃干燥箱保持12 h,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。
Abstract
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 110 ℃ 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 photoelectron 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 superhydrophilic surface to the superhydrophobic surface.
郑晓光, 丁云飞, 吴会军. 热处理后激光刻蚀铝合金表面润湿性的研究[J]. 激光与光电子学进展, 2020, 57(15): 151406. Xiaoguang Zheng, Yunfei Ding, Huijun Wu. Surface Wettability of Aluminum Alloy Surface by Laser Etching After Heat Treatment[J]. Laser & Optoelectronics Progress, 2020, 57(15): 151406.
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