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| Content Provider | IET Digital Library |
|---|---|
| Author | Yin, Zhifu |
| Abstract | The solution to the commercialisation of polymer microfluidic chips lies in the chosen of a low-cost and concise method. CO2 laser is an excellent tool for ablating arbitrary-shaped microchannels in most of thermoplastics. However, upheaval area is usually generates along the microchannel due to high temperature during laser ablation process which leads to the difficulty in fully bonding polymer microchannels. In this work, a new bonding method for fully bonding uneven substrates with homogenous surface property was developed based on water-soaking treatment. To prevent edge separating, an extra laser welding on the lateral of the chip was conducted. The influence of laser current on the width and depth of poly(ethylene terephthalate) (PET) microchannel was investigated. The mechanism of water-soaking bonding was explained and the parameters of this method were optimised. The experiments showed that PET chip can be fully bonded without any block or leakage and the bonding strength of PET chip can be as high as 3.4 MPa. |
| Starting Page | 1302 |
| Ending Page | 1305 |
| Page Count | 4 |
| Volume Number | 13 |
| e-ISSN | 17500443 |
| Issue Number | Issue 9, Sep (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/13/9 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2018.0193 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2018-09-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Arbitrary-shaped Microchannels Bonding Processes Bonding Strength Extra Laser Welding Fabrication of MEMS And NEMS Device Fully Bonding Polymer Microchannels Fully Bonding Uneven Substrates High Temperature Homogenous Surface Property Laser Ablation Laser Ablation Process Laser Beam Welding Laser Current Microfluidics Micromechanical And Nanomechanical Device And System PET Microfluidic Chips Poly(ethylene Terephthalate) Microchannel Polymer Polymer Microfluidic Chips Rapid Prototyping Thermoplastics Upheaval Area Water-soaking Bonding Water-soaking Treatment |
| Content Type | Text |
| Resource Type | Article |
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