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Electrospraying a nanoparticulate suspension

Jayasinghe, SN; (2006) Electrospraying a nanoparticulate suspension. International Journal of Nanoscience , 5 (1) 35 - 46. 10.1142/S0219581X06004061.

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This paper reports an investigation into electrospraying a nanosuspension containing nanoparticles sized at 5 nm and suspended in a polymer grade ethylene glycol. Hence, the processing of this nanosuspension in the stable cone-jet mode having an amorphous silica powder loading of 30 wt.% is elucidated. A comparison is made with established literature on jet break-up to identify the break-up mechanism in this investigation. The ensuing electrospray characteristics for both the polymer grade ethylene glycol and the nanosuspension are also presented. Using the data of collected droplet relics together with a volume equivalence method, the generated droplet sizes are estimated for both media and are compared with the well-known theoretical expression for calculating the droplet sizes generated for that respective jet break-up regime and medium. Finally, transmission electron microscopy of the collected deposits concludes the discussion presented in this investigation. © World Scientific Publishing Company.

Title:Electrospraying a nanoparticulate suspension
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Mechanical Engineering

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