| 孙信虎， 刘禹.基于EHD的聚酰亚胺打印工艺研究[J].轻工机械,2021,39(3):90-93 |
| 基于EHD的聚酰亚胺打印工艺研究 |
| Polyimide Printing Process Based on EHD |
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| DOI：10.3969/j.issn.1005 2895.2021.03.017 |
| 中文关键词: 增材制造 聚酰亚胺 电流体动力打印 控制变量 微图案 |
| 英文关键词:additive manufacturing PI（Polyimide） EHD（Electro Hydro Dynamics） printing control variable micro patterns |
| 基金项目: |
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| 中文摘要: |
| 针对目前多数增材制造设备在加工聚酰亚胺（PI）聚合物材料时成型分辨率低、精度差等缺点，课题组提出将电流体动力学（electro hydro dynamics，EHD）打印方法应用于PI的高精度成型，并对此进行了研究。采用控制变量的方法探究了打印喷嘴处施加的工作电压以及收集板移动速度对PI线条成型分辨率的影响；在分析其打印原理的基础上对PI打印工艺进行了优化。研究结果表明：在一定范围内，PI线条直径随电压增大而减小，随收集板速度增大而减小。通过优化后的工艺参数实现了复杂网格形状的微图案打印，证明了利用EHD打印PI的可行性。 |
| 英文摘要: |
| In order to solve the problems of low molding resolution and poor accuracy in processing polyimide (PI) polymer materials in most of current additive manufacturing equipment, electro hydro dynamics (EHD) printing was proposed to apply to the high resolution molding of PI. The method of control variables was used to explore the influence of working voltage applied at the printing nozzle and the moving speed of the collector on the resolution of PI line; and the PI printing process was optimized based on the analysis of its printing principle. The results indicate：within a certain range, the diameter of PI lines decreases with the increase of the voltage applied, and decreases with the increase of the collector speed. Micro pattern with complex grid shape is printed through optimized process parameters, which proves the feasibility of using EHD to print PI. |
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