直写成型技术：一种新型微纳尺度三维结构的制备方法

摘要

直写成型技术是一种新型的无模成型技术，该技术借助计算机辅助设计和精密机械，精确控制悬浮液的沉积，通过逐层叠加的方式制备简单三维周期结构和含跨度(无支撑)或具有很大高宽比的复杂三维结构。综述直写成型技术的研究进展，阐述其基本原理并介绍成型装置，重点总结直写成型技术对悬浮液性能的要求及其应用，最后探讨该技术存在的问题及发展前景。%Direct ink writing (DIW) is a novel moldless forming technology for simple 3D periodic structures and complex 3D structures with spanning (unsupported) elements or high aspect ratio walls. With the computer aided design and precision machinery, the suspension is accurately deposited via the way of layer-by-layer. The research and development of direct ink writing was reviewed. The fundamental theory and experimental set-up were introduced. In addition, requirements of suspension property and applications of this forming method were specially summarized. Finally, the problem and development of direct ink writing were also discussed.