Miscible Organic Solvents Soak Bonding Method Use in a PMMA Multilayer Microfluidic Device

Micromachines

He Zhang¹  Xiaowei Liu²  Tian Li²  Xiaowei Han² 

[1] Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Harbin Institute of Technology, Harbin 150001, China;

关键词: PMMA;    miscible organic solvents soak bonding;    multilayer micro device;    mixing efficiency;   

DOI  :  10.3390/mi5041416

来源: mdpi

【 摘 要 】

In this paper, we proposed a novel bonding technology to fabricate a microfluidic device based on Poly(methyl methacrylate) (PMMA). The method, which used chloroform and ethanol as miscible bonding solvent, can complete complex structures rapid assembly (10 min) at 40°C. A bonding strength of 267.5 N/cm² can be achieved, while the micro channel deformation was less than 7.26%. Then we utilized this method to produce a three layers micro mixer, which included a T-shaped inlet channel and six H-shaped mixing units. Numerical simulation indicated that, the well mixing length of the mixer was only about 6 mm when Re = 10. Finally, fluorescence microscopy was used to verify mixer performance. The method provided the potential for mass production of multilayer rigid polymer microfluidic devices.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.