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Issue 21, 2012
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Laminated thin-film Teflon chips for petrochemical applications

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We present Teflon-based microfluidic chips fabricated by laminating multiple layers of laser-cut Teflon film. In addition to being solvent-resistant, these chips enable simple multilayer fabrication, have uniform rectangular cross-section and are sufficiently thin to (1) reduce cost, (2) enable rapid temperature control, and (3) provide optical transparency. The chips can be fabricated without a cleanroom from start to finish in less than 2 h. We demonstrate the potential of this approach by measuring the displacement of an oil solution by carbon dioxide in a nine-layer thin-film Teflon chip modelling porous media. Optical transparency through the 9-layers enables the determination of an oil recovery rate. We also demonstrate a thin-film chip measurement of the viscosity of heavy oil/toluene mixtures.

Graphical abstract: Laminated thin-film Teflon chips for petrochemical applications

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The article was received on 18 Jun 2012, accepted on 29 Aug 2012 and first published on 31 Aug 2012

Article type: Technical Innovation
DOI: 10.1039/C2LC40932A
Citation: Lab Chip, 2012,12, 4236-4239

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    Laminated thin-film Teflon chips for petrochemical applications

    T. W. de Haas, H. Fadaei and D. Sinton, Lab Chip, 2012, 12, 4236
    DOI: 10.1039/C2LC40932A

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