Self-organization of colloidal particles during drying of a droplet: Modeling and experimental study

Katarzyna Jabłczyńska , Jakub M. Gac , Tomasz Robert Sosnowski

Abstract

Formation of structurized micro/nanoparticle aggregates in spray drying process is analyzed theoretically and experimentally. Colloids of mono- and bimodal particle size distribution are used as the precursors to demonstrate different patterns of particle self-organization inside the drying droplet. In case of monodisperse primary particles their self-organization in the final aggregate results in either a hollow or a full (packed) spherical structure. For primary particles with bimodal size distribution, either the layered structure of aggregates is formed (with smaller particles forming outer layer and the bigger particles captured inside) or the ordering of bigger particles on the aggregate surface is observed, depending on process parameters. Numerical investigations allow to predict and explain the conditions at which self-assembling of particles within powder aggregates takes place.
Author Katarzyna Jabłczyńska (FCPE / CIPE)
Katarzyna Jabłczyńska,,
- Chair of Integrated Process Engineering
, Jakub M. Gac (FCPE / CIPE)
Jakub M. Gac,,
- Chair of Integrated Process Engineering
, Tomasz Robert Sosnowski (FCPE / CIPE)
Tomasz Robert Sosnowski,,
- Chair of Integrated Process Engineering
Journal seriesAdvanced Powder Technology, ISSN 0921-8831, (A 30 pkt)
Issue year2018
Vol29
No12
Pages3542-3551
Publication size in sheets0.5
Keywords in Englishparticle technology, spray drying, particle structure, self-assembly
ASJC Classification2211 Mechanics of Materials; 1500 General Chemical Engineering
DOIDOI:10.1016/j.apt.2018.09.036
URL https://reader.elsevier.com/reader/sd/pii/S092188311830606X?token=6446357920359004E91FEE39105E2A52083F6B23A1F1851AC1B629965CBF953AE28FBB712EFC6FA71E257E0DBDCD179E
project[2014/13/N/ST8/01667 POLON] Nanostructure polysaccharide inhlation particles - production and properties. Project leader: Jabłczyńska Katarzyna, , Phone: 22 234 62 76, start date 02-03-2015, Implemented
WIChiP Projects financed by NSC [Projekty finansowane przez NCN]
Languageen angielski
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Jabłczyńska K. (i in.) - Self-organization of colloidal...pdf 1.59 MB
Score (nominal)30
ScoreMinisterial score = 30.0, 23-07-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.206; WoS Impact Factor: 2017 = 2.943 (2) - 2017=2.853 (5)
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UwagiThis work was supported by National Science Centre, Poland [grant no. 2014/13/N/ST8/01667]
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