Particle and Aerosol Research
Vol. 13, No. 3, September 2017, Pages 111-118
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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A Study of 2D Micro-patterning of Biodegradable Polymers by MEA (Multi Electrode Array)-based Electrohydrodynamic (EHD) printing
Tae Heon Hwang, WonHyoung Ryu*
Department of Mechanical Engineering, Yonsei University
*Corresponding author.
Tel.: +82-2-2123-5821, E-mail: whryu@yonsei.ac.kr
Received 15 August 2017, Revised 20 August 2017, Accepted 21 August 2017, Available online 30 September 2017
http://dx.doi.org/10.11629/jpaar.2017.9.30.111
Abstracts
Electrohydrodynamic (EHD) printing with the aid of strong electric fields can generate and pattern droplets that are smaller than droplets by other printing technologies. Conventional EHD printing has created two-dimensional (2D) patterns by moving its nozzle or a substrate in X and Y directions. In this study, we aimed to develop an EHD system that can create 2D patterns using a multielectrode array (MEA) without moving a nozzle or substrate. In particular, printing ink mixtures of biodegradable polymers and model dyes was patterned on a thin film made of another biodegradable polymer. Without movement of a nozzle and substrate, stable 2D patterning of minimum 6 ¥ìm size over a range of about 1 mm away from the nozzle position was achieved by MEA control only. We also demonstrated the possibility of denser 2D pattering of the ink mixtures by moving a target substrate relative to MEA position.
Keywords
EHD printing, Multielectrode Array, 2D Patterning, Biodegradable Polymer