Journal of Jilin University(Engineering and Technology Edition) ›› 2018, Vol. 48 ›› Issue (5): 1500-1507.doi: 10.13229/j.cnki.jdxbgxb20170868

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PMMA micromixer embedded with 3D channel based on piezoelectric actuation

LIU Jian-fang1, WANG Ji-bo1, LIU Guo-jun1, LI Xin-bo2, LIANG Shi-hai1, YANG Zhi-gang1   

  1. 1.College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2.College of Communication Engineering, Jilin University, Changchun 130022, China
  • Received:2017-08-18 Online:2018-09-20 Published:2018-12-11

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Abstract: To improve the mixing effect of the fluids under micro scale condition and the mixing efficiency of micromixer, a novel PMMA micromixer embedded with 3D channel based piezoelectric actuation was developed. The micromixer uses PZT micropump with double chambers in series as the driving source, and is embedded with Y type mixing channel and 3D multi-corner spiral flow channel. The micromixer is manufactured by PMMA bonding process under certain temperature and pressure condition. The related structural parameters are optimized using the CAE software. The final optimized dimensions are 50 mm × 35 mm × 7.2 mm. The pulsating and mixing effect experiments were carried out in the laboratory. Results show that when the frequency is 50 Hz and the output flow rate is about 1 mL/min, the pulsation effect of mixing fluids is obvious in the flow channel. The pulsation mixing technique and the multi-corner flow channel structure improve the mixing effect, which is a novel micro mixing technology that combines with the characteristics of active and passive micromixers.

Key words: hydraulic transmission and control, mechanical design, piezoelectric actuation, 3D flow channel, PMMA bonding process, micromixer, PZT micropump

CLC Number: 

  • TN384
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