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Solvent Bonding for Fabrication of PMMA and COP Microfluidic Devices
Published on: January 17, 2017
An Interference-Assisted Thermal Bonding Method for the Fabrication of Thermoplastic Microfluidic Devices
Yao Gong1, Jang Min Park2, Jiseok Lim3
1School of Mechanical Engineering, Yeungnam University, Daehakro 280, Gyeongsan, 38541 Gyeongbuk, Korea. manyjoy321@gmail.com.
Abstract:
Solutions for the bonding and sealing of micro-channels in the manufacturing process of microfluidic devices are limited; therefore, further technical developments are required to determine these solutions. In this study, a new bonding method for thermoplastic microfluidic devices was developed by combining an interference fit with a thermal treatment at low pressure. This involved a process of first injection molding thermoplastic substrates with a microchannel structure, and then performing bonding experiments at different bonding conditions. The results indicated the successful bonding of microchannels over a wide range of bonding pressures with the help of the interference fit. The study also determined additional advantages of the proposed bonding method by comparing the method with the conventional thermal bonding method.
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