高导电性和粘性纳米颗粒悬浮液电喷雾模式的无量纲组。
Non-dimensional groups for electrospray modes of highly conductive and viscous nanoparticle suspensions.
作者信息
Castillo-Orozco Eduardo, Kar Aravinda, Kumar Ranganathan
机构信息
Escuela Superior Politecnica del Litoral, ESPOL, Facultad en Ingenieria Mecanica y Ciencias de la Produccion, Campus Gustavo Galindo, Km. 30.5 Via Perimetral, Guayaquil, P.O. Box 09-01-5863, Ecuador.
CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd, Orlando, Florida, 32816, USA.
出版信息
Sci Rep. 2020 Mar 10;10(1):4405. doi: 10.1038/s41598-020-61323-5.
Multiple modes of atomization in electrosprays are affected by viscosity, surface tension and electrical conductivity of the semiconductor nanosuspensions. While the effect of gravity is dominant in the dripping mode, the electric field degenerates the electrospray mechanism into a microdripping mode that can potentially allow the deposition of semiconductor nanodots on a substrate. Drop size and frequency of droplet formation are obtained as functions of non-dimensional parameters, which agree well with experimental data. The analysis shows that it is possible to produce the desired size and frequency of ejection of monodisperse droplets by manipulating the electrode voltage for any nanosuspension.
电喷雾中的多种雾化模式受半导体纳米悬浮液的粘度、表面张力和电导率影响。虽然重力在滴流模式中占主导作用，但电场会使电喷雾机制退化为微滴流模式，这有可能使半导体纳米点沉积在基底上。液滴尺寸和液滴形成频率是作为无量纲参数的函数获得的，这与实验数据吻合良好。分析表明，对于任何纳米悬浮液，通过操纵电极电压都有可能产生所需尺寸和喷射频率的单分散液滴。
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