年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
CONE-JET AND MULTIJET ELECTROSPRAYS: TRANSPORT AND EVAPORATION
要約
A numerical model for droplet transport and evaporation of electrosprays in a capillary-plate configuration is compared to droplet size and velocity measurements. Two distinct electrospray modes are investigated: the cone-jet mode with a narrow droplet size distribution and a spraying angle smaller than 45 deg, and the intermittent multijet with a broad size distribution and a spraying angle of approximately 180 deg at the capillary exit. LiCl/isopropanol solutions are deposited on a heated plate. The temperature of the plate is adjusted between 20 and 215°C. The spray droplet transport and evaporation is examined with a phase doppler anemometer (PDA), which is able to track the velocity and size of droplets in the spray. The measurements are compared to the model predictions. For the first time, combined droplet transport and evaporation in the intermittent multijet electrosprays is calculated. Cone-jet and intermittent multijet calculations are in quantitative agreement with the measurements. The applicability of the different spraying modes to thin-film deposition and particle production is discussed with reference to electrospray transport and evaporation behavior.
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Hou Xianghui, Choy Kwang-Leong, Yan Jingwang, Deposition of biodegradable poly (d,l-lactic acid) films using aerosol-assisted method, Surface and Coatings Technology, 202, 21, 2008. Crossref
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Grifoll Jordi, Rosell-Llompart Joan, Efficient Lagrangian simulation of electrospray droplets dynamics, Journal of Aerosol Science, 47, 2012. Crossref
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Di Domenico Jennifer, Henshaw Paul, The effects of basecoat bell application parameters on elements of appearance for an automotive coatings process, Journal of Coatings Technology and Research, 9, 6, 2012. Crossref
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Wu Yiquan, Clark Robert L., Electrohydrodynamic atomization: a versatile process for preparing materials for biomedical applications, Journal of Biomaterials Science, Polymer Edition, 19, 5, 2008. Crossref
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Park So Hyun, Kim Jiye, Park Chan Eon, Lee Jaewoong, Lee Hwa Sung, Lim Sooman, Kim Se Hyun, Optimization of electrohydrodynamic-printed organic electrodes for bottom-contact organic thin film transistors, Organic Electronics, 38, 2016. Crossref
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Rosell-Llompart Joan, Grifoll Jordi, Loscertales Ignacio G., Electrosprays in the cone-jet mode: From Taylor cone formation to spray development, Journal of Aerosol Science, 125, 2018. Crossref
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Ye Heqing, Kwon Hyeok-Jin, Tang Xiaowu, Lee Dong Yun, Nam Sooji, Kim Se Hyun, Direct Patterned Zinc-Tin-Oxide for Solution-Processed Thin-Film Transistors and Complementary Inverter through Electrohydrodynamic Jet Printing, Nanomaterials, 10, 7, 2020. Crossref
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Borra Jean-Pascal, Review on water electro-sprays and applications of charged drops with focus on the corona-assisted cone-jet mode for High Efficiency Air Filtration by wet electro-scrubbing of aerosols, Journal of Aerosol Science, 125, 2018. Crossref
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Rietveld Ivo B., Kobayashi Kei, Yamada Hirofumi, Matsushige Kazumi, Electrospray Deposition, Model, and Experiment: Toward General Control of Film Morphology, The Journal of Physical Chemistry B, 110, 46, 2006. Crossref