磁控触变流体的3D打印工艺研究
3D printing process research of magnetron thixotropic fluid
张圣杰 1李振坤 2耿子健 3郭乙飞 3宋仲儒 4董珈皓 2李占贤3
作者信息
- 1. 华北理工大学机械工程学院,河北唐山 063210;北京交通大学机械与电子控制工程学院,北京 100044;河北省工业机器人产业技术研究院,河北唐山 063210
- 2. 北京交通大学机械与电子控制工程学院,北京 100044
- 3. 华北理工大学机械工程学院,河北唐山 063210;河北省工业机器人产业技术研究院,河北唐山 063210
- 4. 河北省工业机器人产业技术研究院,河北唐山 063210
- 折叠
摘要
针对现有磁控智能流体无法应用于3D打印的问题,本文制备了一种在磁场调控下能够实现溶胶-凝胶可逆转变的新型磁控触变流体,并对其打印工艺进行了研究.采用全系统损耗润滑油、有机膨润土和Fe3O4颗粒制备了不同配比的打印样品,搭建了直写式3D打印实验平台,研究其可打印性.流变学实验表明:磁控触变流体有机膨润土含量越高,触变性越强,剪切变稀越明显;磁场强度越强,屈服应力越高,储存模量越高.3种挤出方式下的打印实验结果表明,采用匀料恢复挤出方式打印的结构具备最高分辨率和最大高度.磁控触变流体在根据其流变特性设计的挤出装置下具有良好可打印性,为该材料应用于柔性传感、软体机器人个性化复杂结构设计与驱动、微流控检测等领域奠定了基础.
Abstract
Aiming at the problem that the existing magnetically controlled intelligent fluid cannot be applied to 3D printing,this paper prepared a new magnetically controlled thixotropic fluid which can realize reversible sol-gel transformation under the control of magnetic field and studied its printing process.Printing samples with different proportions were prepared using whole-system loss lubricating oil,organobentonite and Fe3O4 particles,and a direct writing 3D printing experimental platform was established to study its printability.Rheological experiments show that the more the content of organobentonite in the magnetically controlled thixotropic fluid,the stronger the thixotropy and the more obvious the shear thinning.The stronger the magnetic field is,the higher the yield stress is and the higher the storage modulus is.According to the experimental results of printing under the three extrusion methods,the structure printed by the uniform recovery extrusion method has the highest resolution and maximum height.This study shows that the magnetically controlled thixotropy fluid has good printable ability in the extrusion device designed according to its rheological properties,which lays a foundation for the application of this material in flexible sensing,design and drive of soft robot personalized complex structures,microfluidic detection and other fields.
关键词
磁场调控/磁控触变流体/3D打印/打印工艺/流变性能Key words
magnetic field regulation/thixotropic fluids/3D printing/printing process/rheological propertie引用本文复制引用
基金项目
北京交通大学人才基金项目(M21RC00130)
河北省(中国)科技创新能力提升计划项目(199676195H)
出版年
2024
NETL
NSTL
维普
万方数据