Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions

Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions Colloids and Surfaces A 538 (2018) 481–487 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Research Paper Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions Yoon Se Jung, Joo Young Lee, Kyung Hyun Ahn , Seung Jong Lee School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul, 151-744, Republic of Korea GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: We investigate the influence of inter-particle affinity on the microstructure and rheological behavior in the Bimodal suspension bimodal suspension systems. For this purpose, we design the suspensions using two kinds of polystyrene beads Colloidal gel (PS, size ∼530 nm) as a large particle which are electrostatically stabilized and are different in surface prop- Affinity erties only, while keeping unstable alumina coated silica (Al-silica, size ∼12 nm) as a small particle. To change Particulate fluid the affinity, hydrogen bonding is induced by modifying surface of PS as poly (vinyl pyrrolidone) (PVP). The Rheology influence of affinity between large and small particles is investigated by observing the changes in rheological Sol-gel phase transition properties and microstructure. Even with the same, the formation of Al-silica cluster which connects http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Colloids and Surfaces A: Physicochemical and Engineering Aspects Elsevier

Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0927-7757
eISSN
1873-4359
D.O.I.
10.1016/j.colsurfa.2017.11.042
Publisher site
See Article on Publisher Site

Abstract

Colloids and Surfaces A 538 (2018) 481–487 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Research Paper Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions Yoon Se Jung, Joo Young Lee, Kyung Hyun Ahn , Seung Jong Lee School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul, 151-744, Republic of Korea GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: We investigate the influence of inter-particle affinity on the microstructure and rheological behavior in the Bimodal suspension bimodal suspension systems. For this purpose, we design the suspensions using two kinds of polystyrene beads Colloidal gel (PS, size ∼530 nm) as a large particle which are electrostatically stabilized and are different in surface prop- Affinity erties only, while keeping unstable alumina coated silica (Al-silica, size ∼12 nm) as a small particle. To change Particulate fluid the affinity, hydrogen bonding is induced by modifying surface of PS as poly (vinyl pyrrolidone) (PVP). The Rheology influence of affinity between large and small particles is investigated by observing the changes in rheological Sol-gel phase transition properties and microstructure. Even with the same, the formation of Al-silica cluster which connects

Journal

Colloids and Surfaces A: Physicochemical and Engineering AspectsElsevier

Published: Feb 5, 2018

References

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