摘要
本工作通过直书写式三维(3D)打印工艺将碳黑/聚二甲基硅氧烷(CB/PDMS)复合材料精准成型为不同结构类型的柔性微网格。利用光学显微镜表征了复合材料的成型质量和结构差异,通过流变性和电导率测试确定了打印浆料的配比。通过打印速度和挤出气压等制造工艺参数的优化,实现了600μm线宽的稳定成型。系统研究了结构类型对力学和传感性能的影响规律,优化后的简单立方微网格结构的应变灵敏度可达10.33,响应时间为370 ms。验证了柔性微网格在可穿戴器件领域的应用,展现出了优异的实时动态监测的能力。本文为柔性多功能器件的快速、低成本制造提供了新思路,在柔性电子等领域具有广阔的应用前景。
In this work,carbon black/polydimethylsiloxane(CB/PDMS)composites were precisely fabricated into flexible micro-lattices with different structural types by 3D printing process with a direct ink writing.An optical microscopy was used to characterize the fabrication quality and structural differences of the composites.The compositions of printing slurries were optimized via the rheology and electric conductivity measurements.A stable filament diameter of 600μm was achieved through the optimization of manufacturing parameters such as printing speed and extrusion pressure.The effects of structure types on the mechanical and sensing performances were investigated.The results show that the sensitivity of the optimized simple cubic micro-lattice structures is up to 10.33,and the response time is 370 ms.The applications of flexible micro-lattices in the field of wearable devices are demonstrated,exhibiting their excellent capabilities of real-time dynamic monitoring.This work provides a new idea for the fast and low-cost fabrication of flexible multifunctional devices,and the flexible micro-lattices have a broad application prospect in the fields such as flexible electronics.
作者
刘衍均
华晨曦
宋欣雨
邵朋朋
程昌利
刘禹
王震宇
LIU Yanjun;HUA Chenxi;SONG Xinyu;SHAO Pengpeng;CHENG Changli;LIU Yu;WANG Zhenyu(School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China;Jiangda Vibration Isolator Co.,Ltd.,Wuxi 214024,China;Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Jiangnan University,Wuxi 214122,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2024年第5期129-135,共7页
China Plastics Industry
基金
国家自然科学基金项目(52375338)
“太湖之光”科技攻关计划项目(G20212034)
江苏省食品先进制造装备技术重点实验室自主研究课题(FMZ202201)。
