TY - JOUR
T1 - Time resolved imaging of electrohydrodynamic jetting on demand induced by square pulse voltage
AU - Lee, Seungmi
AU - Song, Junyoung
AU - Kim, Ho
AU - Chung, Jaewon
N1 - Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund, KRF-2007-331-D00053) and Korea University.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2012/10
Y1 - 2012/10
N2 - Electrohydrodynamic (EHD) printing is receiving much attention due to its high resolution printing capability, as well as its many advantages such as reduced manufacturing steps and non-toxic, flexible processes. However, many issues need be resolved before it can be widely used. In this work, to demonstrate EHD printing on demand, square pulse voltage signals are applied between a hole-type electrode and the nozzle supplied with working fluid from a reservoir at constant pressure. Continuous fine jet, pulsating fine jet, and pulsating droplet modes are observed depending on the voltage signal. To obtain the optimum voltage pulse duration, the change in the jetting start time is measured by varying the voltage configurations and hydrostatic pressure applied to the nozzle. Among the modes, the pulsating droplet mode is studied in detail for various voltage signals. Futhermore, the printing is demonstrated using the optimized voltage signal.
AB - Electrohydrodynamic (EHD) printing is receiving much attention due to its high resolution printing capability, as well as its many advantages such as reduced manufacturing steps and non-toxic, flexible processes. However, many issues need be resolved before it can be widely used. In this work, to demonstrate EHD printing on demand, square pulse voltage signals are applied between a hole-type electrode and the nozzle supplied with working fluid from a reservoir at constant pressure. Continuous fine jet, pulsating fine jet, and pulsating droplet modes are observed depending on the voltage signal. To obtain the optimum voltage pulse duration, the change in the jetting start time is measured by varying the voltage configurations and hydrostatic pressure applied to the nozzle. Among the modes, the pulsating droplet mode is studied in detail for various voltage signals. Futhermore, the printing is demonstrated using the optimized voltage signal.
KW - Continuous fine jet mode
KW - Drop-on-demand (DOD)
KW - Electrohydrodynamic (EHD)
KW - Printing
KW - Pulsating droplet mode
KW - Pulsating fine jet mode
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U2 - 10.1016/j.jaerosci.2012.05.006
DO - 10.1016/j.jaerosci.2012.05.006
M3 - Article
AN - SCOPUS:84862677973
SN - 0021-8502
VL - 52
SP - 89
EP - 97
JO - Journal of Aerosol Science
JF - Journal of Aerosol Science
ER -