Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4534
Title: Electrostatic charge on spray droplets of aqueous surfactant solutions
Authors: Polat, Mehmet
Polat, Hürriyet
Chander, Subhash
Keywords: Surface active agents
Composition effects
Drop formation
Electric charge
Negative ions
Positive ions
Milikan oil drop method
Issue Date: May-2000
Publisher: Elsevier Ltd.
Source: Polat, M., Polat, H., and Chander, S. (2000). Electrostatic charge on spray droplets of aqueous surfactant solutions. Journal of Aerosol Science, 31(5), 551-562. doi:10.1016/S0021-8502(99)00542-X
Abstract: Electrostatic charges on individual spray droplets were measured using a refined form of the Millikan oil drop method. The measurement system consisted of three main sections; a droplet generation cell, a settling column and a charge measurement chamber. The trajectories required for calculation of charge were determined using a high-speed motion analyzer coupled to a long-focal-length microscope. Charges on droplets were manipulated by the addition of surface-active agents into the spray solution. Droplet charge was a function of the type and concentration of the surfactant added. For ionic surfactants, it showed a maximum at low surfactant concentrations, decreased with further surfactant addition and was constant after the CMC. The charge on cationic surfactants was always more than that observed with the anionic surfactants. Nonionic surfactants displayed a steady increase in droplet charge with increasing concentration. The charges were lower compared to the ionic surfactants. (C) 2000 Elsevier Science Ltd. Electrostatic charges on individual spray droplets were measured using a refined form of the Millikan oil drop method. The measurement system consisted of three main sections; a droplet generation cell, a settling column and a charge measurement chamber. The trajectories required for calculation of charge were determined using a high-speed motion analyzer coupled to a long-focal-length microscope. Charges on droplets were manipulated by the addition of surface-active agents into the spray solution. Droplet charge was a function of the type and concentration of the surfactant added. For ionic surfactants, it showed a maximum at low surfactant concentrations, decreased with further surfactant addition and was constant after the CMC. The charge on cationic surfactants was always more than that observed with the anionic surfactants. Nonionic surfactants displayed a steady increase in droplet charge with increasing concentration. The charges were lower compared to the ionic surfactants.
URI: http://doi.org/10.1016/S0021-8502(99)00542-X
http://hdl.handle.net/11147/4534
ISSN: 0021-8502
0021-8502
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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