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Title: Evaporation kinetics of sessile droplets of aqueous suspensions of inorganic nanoparticles
Authors: Trybala, Anna
Okoye, Adaora
Semenov, Sergey
Agogo, Hezekiah
Rubio, Ramon
Ortega, Francisco
Starov, Victor
Keywords: Nanosuspension
Evaporation
Contact angle
Issue Date: 2013
Publisher: © Elsevier
Citation: TRYBALA, A. ...et al., 2013. Evaporation kinetics of sessile droplets of aqueous suspensions of inorganic nanoparticles. Journal of Colloid and Interface Science, 403, pp. 49-57.
Abstract: Evaporation kinetics of sessile droplets of aqueous suspension of inorganic nanoparticles on solid substrates of various wettabilities is investigated from both experimental and theoretical points of view. Experimental results on evaporation of various kinds of inorganic nanosuspensions on solid surfaces of different hydrophobicities/hydrophilicities are compared with our theoretical predictions of diffusion limited evaporation of sessile droplets in the presence of contact angle hysteresis. The theory describes two main stages of evaporation process: (I) evaporation with a constant radius of the droplet base when the contact angle decreases from static advancing contact angle down to static receding contact angle and (II) evaporation with constant contact angle equal to the static receding contact angle when the radius of the droplet base decreases. Theoretically predicted universal dependences for both evaporation stages are compared with experimental data, and a very good agreement is found.
Description: This paper is in closed access.
Sponsor: The work has been supported by EPSRC, UK; Marie Curie MULTIFLOW-ITN of the 7th FP; PASTA project, European Space Agency and COST programme MP1101; MINECO under grant FIS2012-38231-CO2-01
Version: Published
DOI: 10.1016/j.jcis.2013.04.017
URI: https://dspace.lboro.ac.uk/2134/25793
Publisher Link: http://dx.doi.org/10.1016/j.jcis.2013.04.017
ISSN: 0021-9797
Appears in Collections:Closed Access (Chemical Engineering)

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