| Titre : |
CO2 laser ablation of microchannel on PMMA substrate for effective fabrication of microfluidic chips |
| Type de document : |
texte imprimé |
| Auteurs : |
X. Chen, Auteur ; T. Li, Auteur ; J. Shen, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 233-238 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Polyméthacrylate de méthyle Le poly(méthacrylate de méthyle) (souvent abrégé en PMMA, de l'anglais Poly(methyl methacrylate)) est un polymère thermoplastique transparent obtenu par polyaddition dont le monomère est le méthacrylate de méthyle (MMA). Ce polymère est plus connu sous son premier nom commercial de Plexiglas (nom déposé), même si le leader global du PMMA est Altuglas International9 du groupe Arkema, sous le nom commercial Altuglas. Il est également vendu sous les noms commerciaux Lucite, Crystalite, Perspex ou Nudec.
Puces microfluidiques
Usinage par laser
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
This paper reports a simple and rapid method for fabrication of microfluidic chips on polymethylmethacrylate (PMMA) substrate using a flexible and low-cost CO2 laser system. The CO2 laser employed has a wavelength of 10.6 ?m. The laser power used for channel fabrication ranged from 3 and 12 W, the beam travel speeds ranged from 5 to 50 mm/s and the passes were varied in the range of 1 to 3 times. Typical channel depths were between 100 and 900 ?m, while the width of fabricated channels ranged from 100 to 300 ?m. The effects of the process parameters (the laser power, the beam travel speed of the laser beam and the number of passes) on the dimensional quality (the depth, the width and their aspect ratio) of the microchannel manufactured from PMMA were experimentally investigated. The change law of the channel geometry depending on process parameters was obtained. A high reproducibility of micro-channel geometry was attained. At last, a CO2 laser output power of 5.5 W and a laser beam travel speed of 35 mm/s combining a hot press bonding technique were chosen to fabricate a microfluidic chip within half hour. The pattern qualities and experimental results confirm that the CO2 laser micromachining technology has a great potential for application in flexible, rapid and economic production of polymeric microfluidic chips. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials and reagents - Experimental set up - Laser ablation process of microchannel
- RESULTS AND DISCUSSION : Channel profile - Effects of laser power and beam travel speed on depth of microchannel - Effects of laser power and beam travel speed on width of microchannel - Effects of the pass on depth of microchannel - Effects of the pass on width of microchannel - Fabrication of large aspect ratio of microchannel - Hot press bonding of microchannel |
| DOI : |
10.3139/217.3184 |
| En ligne : |
https://drive.google.com/file/d/1T_p4aH5CnIMAx_7J41UGIYq8jjwd8Ygx/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26181 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 2 (05/2016) . - p. 233-238
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