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Fabrication of Hollow Polymer Microchannels Using the MIMIC Technique with Subsequent Heat Treatment
Weiren Li,Wenqiang Xing,Fengzhou Zhao,Lichun Zhang,Yupeng Huang,Jinxiu Li,Linwei Zhu,Zheng Xu,Dengying Zhang 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.22 No.8
The hollow polymer microchannels with different shapes and dimensions have been fabricated by the MIMIC method and the heating process for the first time. The smallest cross-sectional dimensions of hollow polymer microchannels were about 2.6 μm in the vertical direction and 3.5 μm in the horizontal direction. The length of hollow polymer microchannels increased parabolically with the heating temperature in the range of 30–135 °C. And the influence of the PDMS mold crosssectional areas on the length of the microchannels was invetigated. Furthermore, the forming mechanism of hollow polymer microchannels was disscussed in detail. This technique provides a cheap, simple and controllable way for the preparation of microchannels.