Dilute gel networks clumpy gels in colloidal systems with a competition between repulsive and attractive interactions
Using Brownian dynamics simulations we study gel-forming colloidal systems. The focus of this article lies on the differences of dense and dilute gel networks in terms of structure formation both on a local and a global level. We apply reduction algorithms and observe that dilute networks and dense...
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| Published in | Soft matter Vol. 2; no. 14; pp. 3143 - 3153 |
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| Main Authors | , , |
| Format | Journal Article |
| Published |
03.04.2024
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| Online Access | Get full text |
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| Abstract | Using Brownian dynamics simulations we study gel-forming colloidal systems. The focus of this article lies on the differences of dense and dilute gel networks in terms of structure formation both on a local and a global level. We apply reduction algorithms and observe that dilute networks and dense gels differ in the way structural properties like the thickness of strands emerge. We also analyze the percolation behavior and find that two different regimes of percolation exist which might be responsible for structural differences. In dilute networks we confirm that solidity is mainly a consequence of pentagonal bipyramids forming in the network. In dense gels, tetrahedral structures also influence solidity.
Dilute and dense systems differ in the way structural properties emerge. Two regimes of percolation might be responsible for differences. Global and local structural properties give insights into these differences. |
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| AbstractList | Using Brownian dynamics simulations we study gel-forming colloidal systems. The focus of this article lies on the differences of dense and dilute gel networks in terms of structure formation both on a local and a global level. We apply reduction algorithms and observe that dilute networks and dense gels differ in the way structural properties like the thickness of strands emerge. We also analyze the percolation behavior and find that two different regimes of percolation exist which might be responsible for structural differences. In dilute networks we confirm that solidity is mainly a consequence of pentagonal bipyramids forming in the network. In dense gels, tetrahedral structures also influence solidity.
Dilute and dense systems differ in the way structural properties emerge. Two regimes of percolation might be responsible for differences. Global and local structural properties give insights into these differences. |
| Author | Immink, Jasper N Gimperlein, M Schmiedeberg, M |
| AuthorAffiliation | Condensed Matter Physics Laboratory Heinrich-Heine-Universität Düsseldorf KWR Water Research Institute Institut für Theoretische Physik 1 Friedrich-Alexander-Universität Erlangen-Nürnberg |
| AuthorAffiliation_xml | – name: Condensed Matter Physics Laboratory – name: Friedrich-Alexander-Universität Erlangen-Nürnberg – name: KWR Water Research Institute – name: Institut für Theoretische Physik 1 – name: Heinrich-Heine-Universität Düsseldorf |
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| Title | Dilute gel networks clumpy gels in colloidal systems with a competition between repulsive and attractive interactions |
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