银微结构的电流体喷射按需打印研究  

Experimental Research on Electrohydrodynamic Drop-on-demand Printing of Silver Microstructure

作　　者：杜召亮 王大志[1,2] 路良坤 刘畅 张结[1] 梁世文 杨勇 王立鼎 Du Zhaoliang;Wang Dazhi;Lu Liangkun;Liu Chang;Zhang Jie;Liang Shiwen;Yang Yong;Wang Liding(School of Mechanical Engineering,Dalian University of Technology,Dalian,Liaoning 116024,China;Ningbo Research Institute,Dalian University of Technology,Ningbo,Zhejiang 315016,China;Ningbo Yongxin Optics Co.,Ltd.,Ningbo,Zhejiang 315048,China)

机构地区：[1]大连理工大学机械工程学院,辽宁大连116024 [2]大连理工大学宁波研究院,浙江宁波315016 [3]宁波永新光学股份有限公司,浙江宁波315048

出　　处：《机电工程技术》2022年第11期1-3,20,共4页Mechanical & Electrical Engineering Technology

基　　金：国家自然科学基金面上项目(编号:51975104,62074138);大连理工大学宁波研究院项目。

摘　　要：基于电流体喷射打印技术,采用自主研发的电流体喷射打印平台,以2000 cps黏度的纳米银墨水为打印材料,以厚度为0.5 mm的柔性材料PET为打印衬底,通过实验开展相关技术研究,探明了电流体喷射打印过程中锥射流的形成过程及控制机理,并采用单因素控制变量方法研究了关键工艺参数对打印线形结构的影响规律。研究结果表明,电喷打印过程中的锥射流的形成与所施加的电场有关,且电场强度大小直接影响到锥射流的稳定性以及微结构制造质量;此外,在一定范围内,随着所施加电压的增大,打印线形结构的线宽变得越来越小,随着打印速度的增加,线形结构的线宽亦变得越来越小,即打印线形结构的线宽与施加电压大小和打印速度均成反比;最后利用优化后的工艺参数在PET柔性衬底上完成了线宽约为100μm的图案化银微结构的电流体喷射按需打印制造。The formation process and control mechanism of conical jet in the process of electrohydrodynamic jet printing was studied through experiments,and the influence of the key process parameter on the linear structure of printing was explored by using the single factor control variable method based on the electrojet printing technology,using the self-developed electrojet printing platform,taking nano silver ink with viscosity of 2000 cps as the printing material and flexible material pet with thickness of 0.5 mm as the printing substrate.The results show that the formation of conical jet in the process of electrohydrodynamic jet printing is related to the applied electric field,and the intensity of electric field directly affects the stability of conical jet and the manufacturing quality of microstructure.In addition,in a certain range,with the increase of the applied voltage,the linewidth of the printed linear structure becomes smaller and smaller,and with the increase of the printing speed,the linewidth of the printed linear structure also becomes smaller and smaller,that is,the linewidth of the printed linear structure is inversely proportional to the applied voltage and the printing speed.Finally,the electrohydrodynamic drop-on-demand printing of silver structure patterning whose linewidth is about 100μm on PET flexible substrate is completed by using the optimized process parameters.

关 键 词：电流体喷射打印 银微结构 锥射流 

分 类 号：TN305[电子电信—物理电子学]