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A refined algorithm to simulate latex colloid agglomeration at high ionic strength
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Applied Physical Chemistry. Karlsruhe Institute of Technology, Germany.ORCID iD: 0000-0002-3398-3598
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2016 (English)In: Adsorption, ISSN 0929-5607, E-ISSN 1572-8757, Vol. 22, no 4-6, 503-515 p.Article in journal (Refereed) PublishedText
Abstract [en]

This study is focussed on the simulation of particle agglomeration at relatively high ionic strength using a refined stochastic algorithm developed in the context of parcel-tracking approaches. For that purpose, experimental data of both diffusion-limited and reaction-limited aggregation of latex particles were obtained using dynamic light scattering techniques for different initial particle sizes (diameters ranging from 24 to 495 nm) and at various chemical conditions (ionic strength between 0.5 and 2 M with NaCl or CaCl2 solutions). The experimental data collected have been compared to numerical results obtained with the refined parcel-tracking algorithm for particle agglomeration which has been developed. Results show that the evolution of the aggregate diameters over time can be properly captured by the present model with the value of the aggregate fractal dimension that is extracted from experimental data.

Place, publisher, year, edition, pages
Springer Netherlands, 2016. Vol. 22, no 4-6, 503-515 p.
Keyword [en]
Agglomeration, Colloid, Parcel tracking, Fractal dimension
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-187785DOI: 10.1007/s10450-015-9714-4ISI: 000374375000012ScopusID: 2-s2.0-84947444794OAI: oai:DiVA.org:kth-187785DiVA: diva2:931614
Conference
9th International Symposium on Surface Heterogeneity Effects in Adsorption and Catalysis on Solids (ISSHAC), JUL 17-23, 2015, Wroclaw, Poland
Note

QC 20160530

Available from: 2016-05-30 Created: 2016-05-30 Last updated: 2016-05-30Bibliographically approved

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Norrfors, K. KarinWold, Susanna
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