激光纹理化调控材料表面疏水性能研究进展  

Research Progress on Hydrophobicity of Material Surfaces Regulated by Laser Texturing

作　　者：张茂 易川云[1,2] 杨化雨 张嘉城 王新云 王爱华[1,2] 周丹[3] 邓燕[4] 刘建春 ZHANG Mao;YI Chuan-yun;YANG Hua-yu;ZHANG Jia-cheng;WANG Xin-yun;WANG Ai-hua;ZHOU Dan;DENG Yan;LIU Jian-chun(School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China;Wuhan Huagong Laser Engineering Co.,Ltd.,Wuhan 430223,China;Faw Mold Manufacturing Co.,Ltd.,Changchun 130011,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]华中科技大学材料科学与工程学院,武汉430074 [2]华中科技大学、材料成形与模具技术国家重点实验室,武汉430074 [3]武汉华工激光工程有限责任公司,武汉430223 [4]一汽模具制造有限公司,长春130011 [5]中国舰船研究设计中心,武汉430064

出　　处：《精密成形工程》2023年第4期153-163,共11页Journal of Netshape Forming Engineering

基　　金：国家重点研发计划(2020YFB2010300);中央高校基本科研业务费专项资金(2021GCRC003)。

摘　　要：超疏水表面由于具有减阻、抗污、防水等独特性能,广泛应用于日常生活、军事、工业等场景,材料表面的微纳结构及化学成分对其超疏水性能有着重要影响。激光纹理化技术由于具有加工分辨率高、加工方式灵活、可加工材料多等优势,可用于制备疏水性能精确可控的表面微纳结构,在制造超疏水表面方面有着广阔的应用前景。首先,介绍了激光纹理化的作用机理,综述了常用的激光纹理化方式,如激光直接写入法、激光干涉图案化法及激光诱导周期性结构法等,并介绍了激光参数对微纳结构的影响。根据表面微纳结构的形貌、周期及尺寸特点对激光纹理化制备的表面分层微纳结构进行了总结归纳,包括覆盖随机纳米结构或激光诱导周期性结构的微沟槽、微网格、微柱及微峰,重点介绍了分层微纳结构的制备方式及微纳结构对疏水性的影响。总结了提高分层微纳结构表面疏水性的后处理方式,包括环境老化、表面化学改性及热处理等,并介绍了后处理方式调控疏水性的作用机理。最后,对采用激光纹理化技术制备超疏水表面的应用前景进行了展望。Superhydrophobic surfaces have a wide range of applications in daily life,military,and industry due to their unique properties including resistance reduction,pollution prevention,waterproofing,etc.The micro-nano structures and chemical compositions of surfaces are important factors that affect their hydrophobicity.Since laser texturing technology has advantages of high processing resolution,flexible processing method,and a wide range of processable materials,it can be used to obtain micro-nano structure surfaces with precisely controllable hydrophobic properties.Thus,it has a wide prospect of application in the production of superhydrophobic surfaces.Firstly,the mechanism of laser texturing was introduced,and the commonly used laser texturing methods were reviewed,such as direct laser writing,laser interference patterning,and laser-induced periodic structures.Then,the effect of laser parameters on micro-nano structures was expounded.Based on the morphology,periodicity,and size characteristics of the micro-nano structures,the hierarchical micro-nano structures prepared on the surface by laser texturing were summarized and classified,including micro trench,micro matrix,micro pillars and micro spikes covered with random nanoscale structures or laser-induced periodic structures.The preparation methods of hierarchical micro-nano structures and their effect on hydrophobicity were set forth emphatically.Post-processing methods for improving the hydrophobicity of hierarchical micro-nano structures were summarized,including environmental aging,surface chemical modification,and heat treatment,and the mechanism of hydrophobicity regulation by post-processing was introduced.Finally,the application prospects of using laser texturing technology to prepare superhydrophobic surfaces were discussed.

关 键 词：超疏水表面 微纳制造 激光纹理化 激光加工 接触角 表面工程 

分 类 号：TG176[金属学及工艺—金属表面处理]