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Title: High speed imaging of micro-sized droplet jetted on surface with wettability pattern
Authors: Lim, Chun Yee
Lam, Yee Cheong
Keywords: DRNTU::Engineering::Mechanical engineering
Issue Date: 2014
Source: Lim, C. Y. and Lam, Y. C. (2014). High Speed Imaging of Micro-sized Droplet Jetted on Surface with Wettability Pattern. The 9th International Conference on MicroManufacturing (no. 77).
Conference: The 9th International Conference on MicroManufacturing
Abstract: Experimental results based on high speed imaging of micro-sized droplet jetted on a hydrophobic surface with hydrophilic lines are presented. The effects of the hydrophilic line and the initial impact offset distance from the line on the droplet spreading behaviour are studied. Two distinct processes have been identified, namely the centering and conforming processes. During the centering process, the droplets which impinge at a certain offset distance from the center of the hydrophilic lines migrate towards the center of the line. A droplet with a larger offset distance experiences a slower centering process. This conforming process involves droplets elongate along the hydrophilic line, causing the droplet to conform to the wettability pattern. The outcome of this study can be applied to inkjet printing process for the enhancement of material deposition accuracy and tolerance of printed micro-sized features.
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2014 The Author(s). This paper was published in The 9th International Conference on MicroManufacturing and is made available as an electronic reprint (preprint) with permission of the Author(s). The paper can be found at the following official URL: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Conference Papers

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