飞秒激光金属表面微槽结构微流体定向传输研究  

Research on Femtosecond Laser Microfluid Directional Transmission of Microgrooves on Metal Surface

作　　者：潘宁 刘子源 陶海岩[1] 林景全[1] PAN Ning;LIU Ziyuan;TAO Haiyan;LIN Jingquan(School of Physics,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学物理学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2022年第4期12-18,共7页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省科技厅自然科学基金(20200201250JC)。

摘　　要：微流体自运输技术作为无外界能量交换的自发液体流动行为,在油水分离、集雾、化学生物分析等领域有着重要的价值。在自运输领域中,由于微流体的传输速度缺乏可控调节的方式限制了该技术的使用范围。采取飞秒激光在铜表面加工出了不同尺度的沟槽结构,实现了在铜表面微流体的定向运输,同时通过对微槽结构尺度的调节间接地实现了微流体运输速度的调节。运输速度的调节可以对微流体的相关应用中提供一定的控制手段。研究对微流体定向传输研究的发展具有重要意义。As a spontaneous liquid flow behavior without external energy exchange,microfluidic self-transport technology has important value in the fields of oil-water separation,mist collection,chemical and biological analysis,etc.In the field of self-transportation,t he lack of controllable adjustment of the transmission speed of microfluid limits the scope of application of this technology.In this paper,a femtosecond laser is used to process groove structures of different scales on the copper surface to realize the directional transportation of microfluid on the copper surface.At the same time,t he microfluidic trans-portation speed is adjusted indirectly by adjusting the scale of the microgroove structure.The adjustment of the transporta-tion speed can provide a certain control method for the related applications of microfluidics.There is great significance to the development of microfluid directional transport research.

关 键 词：飞秒激光 铜 微槽结构 微流体 传输速度 

分 类 号：O531[理学—等离子体物理]