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Infiltration and dimensional scaling of inkjet droplets on thick isotropic porous materials

Microfluidics and nanofluidics, 2014, Vol.17 (2), p.413-422 [Peer Reviewed Journal]

Springer-Verlag Berlin Heidelberg 2013 ;2015 INIST-CNRS ;Springer-Verlag Berlin Heidelberg 2014 ;ISSN: 1613-4982 ;ISSN: 1613-4990 ;EISSN: 1613-4990 ;DOI: 10.1007/s10404-013-1313-7

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Title:
Infiltration and dimensional scaling of inkjet droplets on thick isotropic porous materials
Author: Oko, Asaf ; Martinez, D. Mark ; Swerin, Agne
Subjects: Analytical Chemistry ; Applied sciences ; Biological and medical sciences ; Biomedical Engineering and Bioengineering ; Capillarity ; Electronics ; Engineering ; Engineering Fluid Dynamics ; Exact sciences and technology ; Hardware ; Imbibition ; Inertia ; Inkjet ; Input-output equipment ; Investigative techniques, diagnostic techniques (general aspects) ; Isotropic porous material ; Medical sciences ; Nanotechnology and Microengineering ; Research Paper ; Scaling
Is Part Of: Microfluidics and nanofluidics, 2014, Vol.17 (2), p.413-422
Description: We study the imbibition of picoliter (pL)-sized inkjet droplets on controlled pore glass membranes (CPG), as a suitable model for isotropic three-dimensional porous materials. We do so using a variety of liquids, i.e., water, formamide and diiodomethane, and measure the evolution of the imbibition process using high-speed digital imaging. Here, experiments were conducted on 2–280 nm CPG membranes with drops with initial volumes ranging from 100 to 600 pL. We derive scaling laws for imbibition through dimensional analysis and advance the argument that the rate of absorption is related to two-dimensionless groups V = v ( t ) ϵ / v tot ; T = t k p c / μ ϵ / v tot 2 / 3 , where v ( t ) is the imbibed volume, as determined from experiments, t is the time, v tot the total liquid volume, ϵ the porosity, μ the liquid viscosity, k the permeability, and p c the Laplace capillary pressure. We show this scaling to well describe the system at intermediate T values and report that V ∝ T 0.8 .
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
Language: English
Identifier: ISSN: 1613-4982
ISSN: 1613-4990
EISSN: 1613-4990
DOI: 10.1007/s10404-013-1313-7
Source: Alma/SFX Local Collection
ProQuest Central

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Infiltration and dimensional scaling of inkjet droplets on thick isotropic porous materials

Springer-Verlag Berlin Heidelberg 2013 ;2015 INIST-CNRS ;Springer-Verlag Berlin Heidelberg 2014 ;ISSN: 1613-4982 ;ISSN: 1613-4990 ;EISSN: 1613-4990 ;DOI: 10.1007/s10404-013-1313-7

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