research

Electrohydrodynamic Direct-Write Mirco/Nano Three Dimensional Structure Based on Electrical Field Focusing

Abstract

作为一种新颖的微纳制造技术,电纺直写技术已在信息、生物医疗、航空等应用领域显现出强大的潜力。增强射流稳定性、提高喷印沉积精度、诱导纤维叠加沉积,实现微纳三维成型是促进电纺直写技术应用发展的关键。本文引入辅助针尖构建聚焦电场增强对射流的引导与约束作用,以克服射流螺旋鞭动、提高喷射稳定性,实现了电纺直写高精度图案化喷印与微纳三维结构叠加沉积。 仿真分析了系统结构和工艺参数对聚焦电场的作用机制,优化电场聚焦电纺直写实验系统,进一步增强聚焦电场对射流的约束能力。实验研究了射流喷射沉积与流变行为的控制规律,研究发现通过减小施加电压、喷嘴至收集板距离、喷嘴内径有利于提高射流的稳定性,为高精度电纺直写提供...Electrohydrodynamic Direct Writing (EDW), which is a novel micro/nano-manufacturing technology, has shown great potential in the fields of information, biomedical and aerospace. Enhancing the stability and improving the deposition precision of charged jet to realize the micro/nano 3D molding, have been the key to expand the application of EDW. The focusing electrical field built up by the assistan...学位:工程硕士院系专业:航空航天学院_工程硕士(机械工程)学号:1992013115293

    Similar works