Abstract
Electrohydrodynamic printing (EHDP) may produce micro-/nano-patterns for various applications using an external electric field to drive a charged polymer jet. This paper investigates both current characteristics and governing parameters at stable cone–jet mode in EHDP process. Experimental results show that the current increases with increasing applied voltage, flow rate, fluidic conductivity, and even concentration. The convection current Ic dominates the EHDP process of extremely low-conductivity solution by Ic ∝ Q1/2, while the conduction current Io dominates the EHDP process of high-conductivity solution by Io ∝ QV, where Q is the flow rate of solution and V is the applied voltage.
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Acknowledgements
This work is supported by National Natural Science Foundation of China (Grant nos. 51805460, 51575464, 11762007, U1505243), and Natural Science Foundation of Fujian Province of China (Grant no. 2018J01529).
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Li, W., Wang, X., Zheng, G. et al. Current characteristics of stable cone–jet in electrohydrodynamic printing process. Appl. Phys. A 124, 711 (2018). https://doi.org/10.1007/s00339-018-2133-0
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DOI: https://doi.org/10.1007/s00339-018-2133-0