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Micromachines 2016, 7(3), 37; doi:10.3390/mi7030037

Mathematical Modelling and Simulation Research of Thermal Engraving Technology Based on PMMA Material

Key Laboratory of Micro-systems and Micro-structures Manufacturing, Harbin Institute of Technology, Harbin 150000, China
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Jeong-Bong Lee
Received: 30 November 2015 / Revised: 17 February 2016 / Accepted: 22 February 2016 / Published: 26 February 2016
(This article belongs to the Collection Lab-on-a-Chip)
View Full-Text   |   Download PDF [2115 KB, uploaded 26 February 2016]   |  

Abstract

We proposed a thermal engraving technology based on heat transfer theory and polymer rheology in microfluidic field. Then, we established a 3D model of the thermal engraving process based on polymethyl methacrylate (PMMA) material. We could employ the model to analyze the influence of temperature and speed on microchannel processing through the finite element simulation. Thus, we gained the optimal processing parameters. The orthogonal experiments were carried out within the parameter ranges obtained by the simulation results. Finally, we fabricated the smooth microchannel, the average roughness of which was 0.3 μm, by using the optimal parameters. Furthermore, we examined the surface morphology and wettability. Our work provides a convenient technological support for a fast, low-cost, and large-scale manufacturing method of microfluidic chips. View Full-Text
Keywords: microchannel; MEMS; microfluidic chip microchannel; MEMS; microfluidic chip
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Han, X.; Liu, X.; Tian, L. Mathematical Modelling and Simulation Research of Thermal Engraving Technology Based on PMMA Material. Micromachines 2016, 7, 37.

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