Proceedings of the Materials Research Society of Korea Conference (한국재료학회:학술대회논문집)

Materials Research Society of Korea (한국재료학회)
권호 표지

Experimental Investigation of Electrostatic Dripping and Atomization Mode through Non-MEMs based Nozzle Design

  • Choi, Kyung-Hyun (School of Mechanical Engineering, Cheju National University) ;
  • Dang, Hyun-Woo (School of Electronic Engineering, Cheju National University) ;
  • Rehmani, M.A. Ali (School of Mechanical Engineering, Cheju National University)
  • Published : 2009.05.21
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Abstract

Electrostatic printing either it is drop-on-demand or continuous has immense applications in non-contact printing systems such as solar cells, flexible printed circuits, RFIDs and bio applications. In this paper a laboratory manufactured nozzle has been designed for the experimental investigation of electrostatic dripping and atomization of liquid. Dripping and atomization conditions such as voltage, nozzle tip diameter, distance between counter electrode and flowrate has been indentified for the designed nozzle. Furthermore it is also demonstrated that the diameter of a generated droplet could be reduced from a significantly large size to a narrow size distribution which can be controlled by volumetric flow rate and applied voltage. This study will help in classify the conditions between different electrostatic dripping mode such as drop-on-demand formation, jet mode and finally the atomization mode based on the laboratory fabricated nozzle head.

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