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Control of Direct Writing of Ink Droplets using Electrowetting

Plog, Jevon and Löwe, Jens-Michael and Jiang, Yizhou and Pan, Yayue and Yarin, Alexander L. (2019):
Control of Direct Writing of Ink Droplets using Electrowetting.
In: Langmuir, DOI: 10.1021/acs.langmuir.9b01061,
[Online-Edition: https://doi.org/10.1021/acs.langmuir.9b01061],
[Article]

Abstract

The experiments in the present work intend to employ electrowetting for the controlled motion on a substrate of drops of different liquid inks used in 3D printing. The electrodes were embedded in dielectric substrates, on which droplet motion was triggered. It is demonstrated that drops of many aqueous polymer solutions and carbon fiber suspensions can be moved on horizontal surfaces. For example, several aqueous polymer solutions, like those of polyethylene oxide (PEO) and polyacrylamide (PAM) result in drop motions similar to that of water drops. Also drops of commercial hydrogel, agar-agar, alginate, xanthan gum, and gum Arabic can be moved by electrowetting. Drops of sizes of 200 µm and 3 mm can be manipulated and moved by the electric field on different dielectric substrates accurately and repeatedly. This includes horizontal motions, motions on vertical wall, and upside down.

Item Type: Article
Erschienen: 2019
Creators: Plog, Jevon and Löwe, Jens-Michael and Jiang, Yizhou and Pan, Yayue and Yarin, Alexander L.
Title: Control of Direct Writing of Ink Droplets using Electrowetting
Language: English
Abstract:

The experiments in the present work intend to employ electrowetting for the controlled motion on a substrate of drops of different liquid inks used in 3D printing. The electrodes were embedded in dielectric substrates, on which droplet motion was triggered. It is demonstrated that drops of many aqueous polymer solutions and carbon fiber suspensions can be moved on horizontal surfaces. For example, several aqueous polymer solutions, like those of polyethylene oxide (PEO) and polyacrylamide (PAM) result in drop motions similar to that of water drops. Also drops of commercial hydrogel, agar-agar, alginate, xanthan gum, and gum Arabic can be moved by electrowetting. Drops of sizes of 200 µm and 3 mm can be manipulated and moved by the electric field on different dielectric substrates accurately and repeatedly. This includes horizontal motions, motions on vertical wall, and upside down.

Journal or Publication Title: Langmuir
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Fluid Mechanics and Aerodynamics (SLA)
18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems > High Voltage Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Transregios
DFG-Collaborative Research Centres (incl. Transregio) > Transregios > TRR 75 Droplet Dynamics Under Extreme Ambient Conditions
Date Deposited: 29 Jul 2019 07:28
DOI: 10.1021/acs.langmuir.9b01061
Official URL: https://doi.org/10.1021/acs.langmuir.9b01061
Additional Information:

PMID: 31345035

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